#networking
1 messages · Page 152 of 1
Knowing how to set up ACLs is still a good skill to know.
you only use ACLs on a router for traffic filtering if the router is direct connected to the internet
❤
I like taking down the IoT network for a bit
lel
all of my shit freaks out and broadcasts their SSID
i feel bad for blobs parents. its probably down all the time
lol
lol
So you created separate VLAN's on one of your AP's(I assume you have more than one?) and those AP's are hooked up into your gateway/router?
Are you using a switch as well?
ER-X -> switch (US-8-60W) -> switch's 8th PoE port -> AP -> AP'S SSIDs using VLAN 5 and 10
Got it
i was too cheap and didnt want fans
guests can't see other guests
no poe switch for me
I got all the PoE 😄
US-8-60W was like $99 and it has 0 fans
i need 24-48 port, not 8
What is the ER-X your router?
yes
Is that the model?
What brand of router ya got Blob?
Ubiquiti Networks
Neato, I've never heard of that brand before.
Alright, that's enough of me chatting. I have to get back to preparing for my Networking Midterm Exam.
Cya around guys.

lol
OOF
if im wrong the business keeps losing money
It's like my parents calling me down this morning from bed because the "TV Isn't working.".
@waxen scroll Just tell management they needed a break, you were watching out for their health 😛
That's sad 
i kno
@clear igloo i see r/sysadmin is finally becoming aware that jack of all trades is appreciated less and less
shits too complex now
people want specialists
Yup
@clear igloo @waxen scroll
Just a couple of servers
Is that your pr0n stash?
No its mine
Dooley: can we add p0rn to the censor?
lmao
How much for 1 server 👀
$1.5k
Yikers
the pallet jack must be crying
@hallow nimbus it's dual Xeon (8c/16t each) with 64GB of ram
and 12x 4TB SATA and 2x 146GB 15K RPM SAS with PERC H710
Blob gonna get him a sugar momma and live like king
Let me know how that goes
@rocky badge you better start wrenching now
🤔
when you have money you might get a racing habit
oof
getting under a car without protection doesn't sound too much fun
if I had those lift things at the mechanic shop I would like to do the oil change
lol
i use these
they were the only ramps that didnt look sketchy AF at a price thats still ok
@waxen scroll evasion of the "censored words" filter is an immediate and permanent ban.
I'll make the filter more intelligent later, it's not our top priority atm.
@hallow nimbus
Oh shits
@rocky badge those HDD trays alone are worth a ton.
I am sorry mister dooley
yea
HDD trays are gold. my old company bought knockoffs from china
cause dell over charges
actually no
the problem was dell didnt sell them
you HAD to buy it with an HDD
I got legit ones from either ebay or newegg for cheap-ish
I’v 3D printed trays before. You usually can’t because they often have chips in them but sometimes it has worked
this was 2012, so no chips.
Dell SAS trays don't have "chips"
ive never seen dell with chips. im not shocked if HP does
Maybe it was something else that I was doing wrong then
Either way, I only got it to work a few times
hah hah. OF COURSE HP does
HP aka money ho.
we used to have all HP Oof
it pisses me off when people brag that they PREFER HP over dell
usually seen at HP server shops
i call them out on driver downloads and the fact that HP servers take twice as long to post
when you have an outage and a reboot will fix it, the HP posting is the worst
time stops
How would you guys get a 40gig connection without a fiber? I’m thinking about going eband but ...
That sounds very hard though I suppose that it is possible
port channel
getting 10gb copper gear is gonna be more expensive than just doing fiber probably
He mentions E Band so I am assuming that he is looking for some form of wireless solution?
I have a problem. My WAN light is on but my internet light isn’t. All the cables are plugged in the same way they have been for the last month. I unplugged my setup at the wall just like 30mins ago and now my internet isn’t working anymore
then that might be outta my reach i give this to other smarter people xd
@smarter people than me
Hi here, I'm trying to setup remote web access on windows server 2019 datacenter but when I try to connect to my public ip I get a time out error on chrome and an resource not found on ie. Connecting to local ip does work and everything is portforwarded correctly. Any ideas what is causing this?
(@ me)
Can someone tell me which ports are exactly needed? Maybe I missed one
What port is your web server running on? 80,8080,8081,443?
Also, where does your webserver traffic get sent to?
The standard ports, so 80 + 443
@modern forge You need to forward ports in order to access it from outside of the network
also it's not always supported to use your external IP from inside the network. This is called a "hairpin turn" and not all routers support it
Also why are you using windows server? Unless you need active directory I wouldn't reccomend it
@steady loom hairpin is funny same with hairpin nat
EdgeRouter supports it so you can NAT within the internal network which is strange but cool same time
I try to avoid weird configurations like that
I'm working on setting up some kind of edgerouting / reverse proxying for a Nomad Cluster
NAT please PAT SNAT
@steady loom reverse proxy is what again?
where connection comes in and. terminates?
and start a new connection using local ip?
reverse proxy is where the connection comes in and it routed internally, without exposing the origins IP/port, only the proxy's.
Kind of, it's when you basically have a proxy in front of backend services.
The situation is that I have a cluster of a few servers. And jobs that will be running on these servers. During the lifecycle of the jobs, it's possible for the server they are on to be abruptly terminated. If this happens, the scheduler will move the job to a different server in the cluster.
So I need a system where I can have one Nginx or HAProxy container that will route traffic to microservices to the correct cluster member that is currently running the job
hmm seems useful
Yeah, it's a fault tolerant system. With persistent storage. For example I ran a test database job. Added some test data, And then killed the server the database was running on. There was maybe 5 seconds of downtime while it rescheduled the job and moved it to another node
Redundancy is key in any newer modern network(s).
what's this?
Remote Authentication Dial-In User Service (RADIUS) is a networking protocol, operating on port 1812 that provides centralized Authentication, Authorization, and Accounting (AAA or Triple A) management for users who connect and use a network service. RADIUS was developed by ...
Are you running radius?
no
You would get / configure the key during the configuration process
so you need to make a radius server first and then fill the RADIUS Server and Radius key spaces with the parameters you got during the configuration of the server?
pretty much
ok
Chances are you don't need radius though
so screw edgerouter VPN?
use the CLI
4head
CLI > webgui
PFFFF
I'm using AD and I use my external ip before and it just worked fine with esxi. But now with windows server it does not. And as I said I already port forwarded it. @steady loom
cli is also a luxury
Dell charges another grand or more for it
@subtle glen I don't but I NAT for VPN access
it goes Internet > NAT > WAN > PFsense > OpenVPN int
but then you would be on a separated subnet
@subtle glen I am with two vlans, but the openvpn connection can access all the lans
if you push routes in your config
I have 10.0.0.0/8 route
this is getting more complicated than i expected
if I were to do it again, I'd scrap EdgeRouter and put pfsense there instead
I just don't find affordable 10G
that uses tdp less than 25W
or use the edgerouter and PFSense as a transparent firewall
no, that will only make it complicated for little to no benefit
I would do it over if I get the money again
The new build would cost around $570 with a 10G nic
but tdp is still problem
isnt pfsense bad for 10g
Ayyylias i think
if you don't match hardware with capability, it won't hit 10g routing speeds
match it, it will be fine
like it requires quad core at minimum
don't know for boost speed but a fast Intel quad core from 8th Gen should do
@subtle glen I run pfsense
any particular reason you went with pfsense?
It's pretty powerful
Just looking around on eBay.
That looks like the one my Networking professor has in the lab.
I’m not a big fan of PfSense as a router. It works well as a firewall and basic routing situations like NAT with two WANs and maybe a very small number of VLANs. No matter what machine you put it on, it has issues with too many interferences, especially too many IPSec interfaces (I’ve had it take 5 minutes just to save a single change to an IPSec interface because it wants to save them all). You can’t turn the firewall off without disabling NAT and trying to get allow all rules to work is very hard. Even a standard allow all rule does not block everything as it will block connections where it did not see the opening and it has issues with reverse pathing too. Sometimes, if you have a large number of firewall rules (like having many interfaces which each have an allow all rule), it won’t even properly apply the rules. It will save them but then it will still block packets even though you have an allow all, it can even show them as being blocked for rules that have been deleted. Reloading does not help at all and the only thing to do is make some other change to get it to re-save the rules.
it's been a long time since i turned on my cisco switch now that i think about it. Maybe it will blast dust out if i turn it on xD
@subtle glen the best time to bring out the vacuum
true
I found a mikrotik router, with dual SFP+ ports
Never used RouterOs, only pfsense, can router OS do the same as pfsense? with a focus to dual wan/isp settings?
It's the best deal containing SFP+ ports i can find for a router
Layer: 3 is on the ebay page, but I really have no clue what that means, I just need a router, and I have a 14U server rack with at the moment 1x 4U server and a UPS, but I'd like to put 10G into the server, so this router would give me 10G option and more then enough ports for lan network
But I've never touched 10G network gear, and I'm not a networking guy, so
@zenith ridge the issue is that while it is a router, it routes much slower than it can switch. It has a switching throughput of about 46G but the routing throughput is only around 1.2G. Here is a photo from the Mikrotik page with their test results for routing. https://mikrotik.com/product/CRS326-24G-2SplusRM#fndtn-testresults
Oh, so it's cheap because the 10G ports are rather useless as a router? Would you have a suggestion for a better option similar to this?
It's not really meant as a router which is why it has worse routing performance. It is a layer 3 switch which means that it's main job is as a switch with routing sort of tacked on and useful not as a main router but for inter-VLAN routing like maybe to allow normal devices to access an IOT VLAN but without letting the IOT escape to the internet. Routers that can actually handle 10G can get very expensive. The cheapest Mikrotik that can almost handle 10G is the RB4011iGS+RM (https://mikrotik.com/product/rb4011igs_rm). It has only one SFP+ port and 10 1G ports. It gets much more expensive if you want something with more than one SFP+ port. Here is Mikrotik's list of routers https://mikrotik.com/products/group/ethernet-routers. If you are ok with 10G copper ports then maybe the EdgeRouter 12 from Ubiquity would be the best.
@fresh copper actually I never thought about the intervlan layer 3 switch usage that way
that's neat
@fresh copper I see, thank you, I'll guess the search goes on, i don't need it as I'm still living at my parents, I would just like 10G and be ready to move out with my rack working and just plugging in the wan port znd power
It might be easier to just build a white box router with an SFP+ card
@fresh copper Would you also happen to know some 'silent' 1u case with PSU options? I have 2x E5-2665 cpu's doing nothing, could use 1 or both of them in a pfsense box
though it will draw a lot more power
But making a server around those cpu's wont be to much of a waste, if i end up buying an actual router later i can still use it as a test server to play with or sell it as a full system
hi ppl
I don’t have any good recommendations at the moment
silent 1u You may pick one.
Dell R620, have both (up to about 70% CPU utilization) 😃
Could someone help me with mysql
lots of SERVER discussion in the NETWORK channel
maybe dooley needs to make #servers
@Tommeh#9804 what you need
@unreal wedge since linus has been doing lots of server talk, maybe it makes sense to open #servers
For some unknown reason whenever i install mysql, mysql -u root -p mysql returns : Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
is there a flag to define "localhost" or the IP?
though if theres no socket, perhaps its not even running
Well, how do i start it, i cannot find the name of its service
its been years but mysqld ? sqld ?
nope and nope
I haven't used MySQL since I found MSsql was free
what is the OS?
Centos 7.6
you installed using yum?
yep
if you did yum, google says mysqld.... sudo systemctl start mysqld
That's why i'm here, everything i can find doesn't work
you checked /usr/lib/systemd/system/ ?
Am i like missing an additional package or what
if its not there, thats the extent of what i can help with. i havent had to run sql in years and systemd came out since ive used it
i stopped using linux for the most part before systemd hit, so :3
I don't see any mysql services
gotta go. bbl. all i can say is maybe try installing it again. maybe you only installed the sql client and not the server
Tried already
Well, what would the darn package for it be
As i find the docs on this very bad
Doesn't exist
you might need to add a repo
How, we never did that
I have already destroyed an entire machine trying to get this working
By using that exact doc even
It is an ipv6 machine btw
And last time i installed that it fucked everything up
The machine could no longer acces the internet or install any packages
Not even linux mint on ipv4 can get that file though
Oh, i broke that one aswell ffs
4th dead mint from trying to install mysql
use snapshots and vm
Broken for some reason
It must have some freaking package though
But i cannot find them anywhere
And i'm royally screwed if i cannot get mysql working again
@daring plover yeah I'm not sure. Is this for a project or something?
school
I'm fucked if i cannot get it to work
And this happends when i try to add the repo
@little schooner
We were never told how to add repos and i cannot get it to work
MariaDB would also work
But somehow it doesn't
yeah not sure. last time I used something with rpm was when I installed opensuse
Well, i managed to finally find a valid package name for mariadb
But it denies acces for root
Nvm, finally got it working, thx anyways!
Hey, how’s it going folks?
pretty good thanks
good I would say.
marketing class is coming up but the teacher keeps putting projector up and down
That’s good, I hope you all are dong well.
I don't know what they're doing
I have my networking class midterm exam today.
I wish you the best of luck on it
I should be fine, I’ve been binge watching Professor Messors CompTIA Network + Videos.
lol
I’ll just do the best I can.

I remember that I never really studied for mine
I just came into class
seemed to stick, probably due to the professors explaining
Huh, interesting... I guess you have a good memory then.
The only reason I’m watching these videos is to just review the materials covered in class and from the chapters.
¯_(ツ)_/¯
I have online networking classes, I always get to check my answers during finals because my professors don't bother setting up secured browsers for the tests
It's tough because I want to just breeze through and 100% everything but I want to learn it too because I'll be a worthless network admin without it
I did the same thing for cisco practice tests. All I did was read the chapter and take the test within the next day or so
I was getting 88-97% on the tests
For datacomm II i was getting only 90%+
for datacomm IV, it started to drop to 85%
If I were to take notes, I would of been missing out on the examples the teacher was trying to explain in dumbed down version of what the slides had
and that what would end up sticking more
I guess the experience will vary for everyone but if you try giving me Trig math homework to memory, I will not do well
Same, the highest level math I ever did was Quadratic Equations.
Then I was like: "Yeah this is enough, I'm done."
I am not doing too good in trig. I have a current grade average of 74%
I'm not that great when it comes to math as well.
I struggle sometimes even with basic math.
It's funny though because sometimes the more complicated math stuff is easier to me than the less complex math stuff.
My brain confuses me, and itself.
And I spend a lot of time doing the homework but
cant seem to jab it in and stay in the noggin
I guess there are no neuron connections that could relate to the information to connect em
This semester cant be done soon enough. I want this math to be over
I still haven't done my core classes
I have a lot of generals to take
I am in a bachelors degree program
Somehow I managed to skip geometry, precalc and trig in grade school
I'm not even doing any math this semester.
But once I matriculate I'll need to take the Accuplacer Test which means that I need to brush up on my basic math skills and pre-algebra, algebra 1 math.
I don't even know why I'm saying this all to you guys.
¯_(ツ)_/¯
Everyone has their fair share of stupid errors 😛
like how ubnt edgerouters don't properly remove firewall aliases when you delete some rules
and then when you upgrade it reboots itself because it detects broken config referencing something that doesn't exist
but somehow the old versions allowed this problematic config
yeah that's one dumb error
7 votes and 39 comments so far on Reddit
ive met cyber security guys who didnt understand routing
Just put it all in a single L2 domain, it's fine
no, like... the firewalls they manage were routing
but one of the team told me he didnt get it and tried to explain routing to me
was only half right
🤦
😂
I've got 19.93 Mbps incoming on one of my servers right now. That's not a lot on its own but consider that that almost entirely NTP
@unreal wedge !slap
@cursive valve !ban
@fresh copper I hope that's not NTP reflection attack traffic lol
@strange silo that’s 1/14th (or more) of all of the IPv4 NTP requests to the ntppool from China
The China pool has been failing really hard so we have added some non-China servers to the China pool so that the servers in China won’t be hit so hard and will hopefully recover from the state of having too low a score to be in the pool. Then maybe we can find a better solution (we don’t know exactly the best thing to do yet but we have been discussing it)
@fresh copper
All I'm going to mention would perhaps be disabling things you've probably already disabled. (Like disabling monlist)
@covert ibex absolutely nothing but the standard time commands are available, definitely not monlist. It’s not like monlist would even work. It’s supposed to return a list of 600 clients and I turned off logging clients so even if it was enabled, it would have nothing to return. I’ve done a ton of optimizations because handling that much traffic in very small packages is hard.
Could you just disable NTP on those servers?
@fresh copper Sorry to bother you again
https://www.amazon.com/MikroTik-Ethernet-10-Port-RB4011iGS-RM/dp/B07HBW2NTR
I found this, but also read somewhere the SFP+ port is the WAN port, and 10x1Gbit are the LAN ports.
I would like to use the 10G for a server
And I would like to use 2x1G ports as WAN for load balancing
I think this should work for what I need (want), and I can still extend to the other 24port switch with 2x SFP+ if i need more 1G ports
Both would cost me less then 300$ combined, and a lot less watt usage then a pfsense box
thoughts?
Buy MikroTik RB4011 Ethernet 10-Port Gigabit Router (RB4011iGS+RM): Switches - Amazon.com ✓ FREE DELIVERY possible on eligible purchases
@zenith ridge You can use any combination of interfaces on the RB4011 as WAN or LAN (or any other setup you can imagine). Only real thing to keep in mind is that each bank of 5 gigabit ports has a 2.5gbps symmetric pipe to the CPU. (see the block diagram).
I see, thank you! Guess that 2.5Gbps limit is why it's cheaper then other routers with a SFP+ port, but for home use, it should be alright, just going to save this one, but I think this will win because of the price and faster then 1G speeds (Most I have reached so far is 4Gb in a VM on the server the the drives, local, wont reach 10G speeds anytime soon
The SFP+ port is 10gbps.
It's just not possible to leverage this using just the gigabit ethernet ports.
I quite like them for the price.
Yea, but untill i need more ports i'm most likely just connecting the server with SFP+ port, and later add a switch with 2x SFP+ ports
the switch is about 150$ or so, 24ports 1G with 2 SFP+
Then I can connect router to the switch using fiber and server to the switch
That works.
Yea, and i can do this spread over few month, first the router untill i need more ports, instead of spending 1k on a router alone for just having SFP+ ports, even with limitations this is an amazing deal
Anyway, thank you, i was just a bit worried because of that 1 internet page telling SFP+ was WAN port 😅
No problem.
How’s it going my Networking peeps?
Imagine you have to link 4 pc in 1 room to a Server in an other one ... how would you do that ? Run 4 CAT6 cables directly to the server room or an other way ?
Use a switch and run one cable from the switch to the server
wow
Engineering 100
thats how my school does it
@subtle glen whatt... no strap fasteners or cable tie love for those wires 😢
They might as well connect a console cable to the switch and let students access it
there is even worse
also no sites are blocked so you can access anything on the internet
@median ore The seats look so hard.
@subtle glen is that a post-secondary school
i bet that switch doesnt even have a password
ehhh, i don't know how to translate that to italian xD
I also bring my router, hook it up to that switch and get wifi
me too
It's a Cisco meraki mx400
we are using some open source crap
also the connection to that lab that has like 20 pc's still has a 100 mbps connection to the main router (or other switches in cascade, ikd)
Damn my school at least has 500mbps to the computer applications room using 5e
I got 1000mbps using a cat 7 cable of my own on a gigabit port on my laptop
and since my school is divided in 2 blocks (the labs where the routers and servers are located, and the classrooms) i am pretty sure that the classroom area (with access points, pc's and stuff is connected to the "server room" via 1 tiny ethernet cable
not even a fiber link or something like that
Everyone always days school internet is shit it's not honestly it's better then most kids internet at home
It just has a alot of web filtering
Making it slower
not mine xD
mine is slower cause it's a crappy physical network
not cause of firewall rules and stuff
I have the best internet where I live and it's only 100mbps
Well it's abit above
Other then business and fiber it's the best
my school has (in theory) 100 mbps but often it's around 30 mbps, and once we had to download a few MB software and it took one hour to do it
Jesus
Actually my school's upload is higher than download
We use old ass 2009 Macs
We could have got new windows computers for the entire school but nopw
We shitty Chromebooks
schools that fill up labs with MAC's really want to waste money
We did get new windows computers for computers applications room though
But it's Microsoft office
So you need windows computers
some pc's in labs still have 4 GB of ram, IDE hdd's, windows XP or 7
The middle school the IT director is my friends dad
So I'm gonna get like 2 Dell servers and 2 apple xserves and some more Cisco gear
This is what I got right now
those switches seems old
They are
like 100 mbps ones
They are
i have a couple of them too
yeah, i trashed my entire cisco lab
Why
im all virtual now
Damn I prefer physical
do you have a virtual switch
yes
eww
I'm waiting to set up my proper lab
When you're labbing you don't need physical
Just ordered a 2811
you only need physical if its a high performance lab
^
none of us do that... i only do it at work
don't you wanna be high performance?
no
Not at home, no
lol
i do for work, not at home ;\
yeah but thats all equipment you cant afford at home
i dont want to operate on equipment from 2001
virtual lab is all modern
Why use up all that space at home when you can virtualize a dozen routers into a single 1RU server
if you have the space (and money) to do it, why not
i use a 2RU server and i dont keep it running 24/7 cause im an adult and pay the power bills
If you have money to throw away then just give it to me instead 😛
so that you can buy servers
lol
@little schooner those seats are soooo hard ... just pure wood 😐
i tell TAC "only fix" all the time
I am still figuring out how and when to sleep my server during the night without prompting me for bit locker password
why dont you have a TPM chip
@waxen scroll Hmm supermicro said I would have to buy it
it's a separate accessory
but I am thinking of switching to amd server first before buying it
because I will need a new board and a different supported module again
would the data be protected if they stole the server?
say I enabled duo two factor login I addition to a difficult admin password
then if they try to break the UEFI, it should in theory lock out the drive right?
Hello, i have USB Internet connected as backup but anyhow it does not directly work if main internet goes down. Iam pretty sure a small thing could change a lot... like windows setting or smth? Thanks for your help ♥
What?
I guess his 4G internet backup
need more details for sure, lol
what's the main network, what is the USB internet? is it a wifi adapter or little 4G boi?
details detayyuhls
hahahahahaha
TIL: Mikrotik APs in Station mode that don't have an SSID set will connect to whatever open AP it sees first.
kek
Hey guys, sup?
So errr. where can I get an LTE antenna? not for receiving, rather sending
doesn't it do both?
afaik not. basically I need to start a mini Telecom(LTE only) provider
Probably need to get a license for that
Probably yes, but where do I even get the hardware?
Try contacting the companies that make the components and make sure you at least have a registered business name so they take you seriously.
I do have the business name, but what companies make them? Closest I could think of of finding that out is the Telecomproviders themselves
Sorry I have no idea. Maybe wikipedia can be of assistance. You could try climbing a cell tower and looking for logo's 😂
If they wouldnt be fenced off, I would haha
Well good luck.
going to need that haha
@glacial glacier I am not sure but any of these products related to the 4G thing?
Oo will hve to look at that
Apparently thats only for P2P connections 😦 mobile devices cant connect to it, and its all WiFi
Got it
Its still good to know basic commands 😛
Wat
You'll just forget them

Speaking of basic commands.... BGP communities!
Co-worker put them in and didn't tell me
Found out during testing last night
🤔
It was over riding my local preference from another data center because I didn't put a community in
Had to dig deep to find it
Asr9k config is long and confusing
Nah, show run router bgp (AS) vrf (blah) 😄
Wouldn't have helped
Ah, one of THOSE configs 😛
Uh huh
Hire Blob to clean it up
It's about 900 pages iirc
IS-IS is very interesting, I need to brush up on it again
Yah, BGP is another fun one 😃
Yup, and then you filter it all 😃
lol, I bet those calls are always fun to ignore....
I mean deal with very seriously >.>
Yup, need the proof at least
Ah, that's not too bad then
haha
"we were only a transit AS, please call the originator, kthx"
....and the origination was i O_O!!!
lol
I'm glad I don't have to deal with that
Instead I get management jumping on the call 20 minutes late asking questions about things we covered 15 minutes ago >.<*
Yah, thankfully the customer I deal with will just send emails for most of the questions they have but we do have weekly status calls about the various projects going on which can fluctuate a bit so the number of meetings varies throughout the year.
i havent delt with end users in 5 years
Kind of an off topic question but does anyone have any pointers for running data cabling in an existing house?
Dont run it in the same pipe as ur powerlines
And dont hit any waterlines as ur drilling in to the wall
and buy 4-8 boxes of 1000' cat6
running 8 at once speeds the job up
777 votes and 223 comments so far on Reddit
Working on a small business network diagram. (Not complete yet.)
It's for a project assignment for my college networking class.
I might need a little advice/tips from you guys.
There are 5 users in the organization. A server should be available for file sharing and a printer which should be network based. One of the rooms requires wireless connection to the network. There is a Firewall device on the perimeter and then that connects to the Internet. You must assign IP addresses, subnet masks and gateway IP address to all components that would need one.
I'm trying to keep this logical network topology diagram as simple as possible if I can.
realistically, you probably would use home network equipment for this with /24 DHCP and some IP exclusions, but i cant say what the users are doing
the most important part is what is the user doing
it could be a 5 person animation shop with a render server
The project description says: A software development organization, which is planning to setup a small business network.
yeah TBH i would use home network equipment, all in one, or similar
this is real world
your prof wont like that
lol
small business network?
NetCloud Solution Packages for Branch Networks with the AER1600 LTE router are designed for the distributed enterprise to intelligently manage converged wired and wireless connectivity for a highly available “connected experience” at the Edge. Packages include NetCloud So...
we use these at tiny sites even
i dont want you to fail the assignment, but its important to note what real world is
do you think the prof wants a full blown broken out network?
I'm not really quite sure, he didn't really tell us what kind of LOD he wants in the topology. I assume the simpler the better. However, I am supposed to Include a written explanation of the diagram.
Don't worry the written explanation is on me. lol Shouldn't be too hard.
based on what you told me, i personally would do an all in one device, keep everyone wireless if possible, put the server and printer on the wire
printer can also be wireless i guess
doesnt really matter
/24 for everything, no vlans
server and printer get static
@clear igloo Q?
Did you read the project desc. above? The printer should network based. The file server should be available for file sharing.
I assume network based means wired?
Network based means that it is not connected via USB
Yeah so in the diagram I have the printer wired in the ethernet.
my reasoning for why i told you this is its 5 users, small site, dev work is not network intense
@thick minnow In the real world, I would use a combo router switch, maybe even the default one from the ISP. Might need an extra 8 port switch as most only have 4 ports. I would also go with 10.0.0.0/24, , router is 10.0.0.1/24, server is 10.0.0.8/24, printer is 10.0.0.9/24, rest are DHCP in range 10.0.0.128-10.0.0.254, then it is easy to add new computers or even wifi in the future.
What I would mention for your current diagram is that you assign the switch 10.0.0.0. I have two notes about this. You only need an unmanaged switch so the switch is not assigned any IP at all. Also, many devices still don't support being assigned the network IP or communicating with a device assigned the network IP. The network IP is the first IP in the subnet.
if you think the prof wont accept that simple of an answer, you'll prob want to use that ^^^
I get your logic, I'm just trying to make sure that I do the correct thing here.
sorry, optical isnt my strong point, pretty sure those should be negative numbers
do you need an attenuator? lol
You must assign IP addresses, subnet masks and gateway IP address to all components that would need one.
I would make sure to mention expandability somewhere as that network is very basic and they may need to upgrade sometime in the future, wifi would be the first thing, maybe some laptops.
@ancient vigil i'm not an optical guy either, I just know that it has something to do with total internal reflection.
mux?
I'm little confused now, based on the project desc. saying I need to assign IP,Subnet Masks, and the Gateway IP. Doesn't that mean the devices are statically configured? Which In small business network would probably be ok.
media converter?
amp
yeah i think thats a mux then
we have our own muxes and dark fiber at work but i never asked to be trained
so im a noob
Perhaps try some test data to see if it at least works
@thick minnow you are right that means static
but i hope to god the computers dont go home at night
😂 🔫
Yea, I was saying what I would do in real life. I have no idea what you class teaches you so they may want a very formal, traditional setup rather than something more modern
So basically, I have to not use a CIDR subnet mask for my network devices, I'm using 255.255.255.240 currently. I would also have to put in an AP that is connected to the switch which is then connected to the router.
CIDR Classes Inter Domain Routing.
IDK, I will work on my diagram tomorrow.
I need to think, take a rest.
thats what happens when you ask people to help on your homework
I knew I would probably get varying answers. It's up to me how I want to build my diagram in the end.
I was just asking for some tips/input.
Thanks for the help guys, I appreciate it.
😃
You're welcome!
That reminds me that I need to fix some of my peering connections. I lost a ton of peers recently
Also, my website is broken
what do the peers do
You're the one that mentioned BGP
i dont mean BGP terms, i mean why are you connecting to a bunch of peers whats their purpose
pretty sure you were running some non-work network
no.
does anyone here know how to get unms working
it doesn't connect my ER-X
It see it
I’m probably making my diagram more complicated than it needs to be.
I’ll work on it more tomorrow, it’s 10:37PM ET where I am.
Any perticular reason anybody can think of why a DVR, or even my laptop won't get an IP from a router if I use a switch with mpr and dte ports in the line, but if I use literally the cheapest switch I could find, ($8 dlink switch), it works fine?..
@covert ibex What switch are you using that's causing the issue? Link?
Does it work if you configure an IP manually?
Then maybe that switch does not work at all or is some form of managed switch that is configured incorrectly.
I don't recall it being managed, but I haven't looked at it that much.
Been fixing the work network and need 2 switches, and those are what I've got.
(They wont buy more. Cheap )
@covert ibex maybe if they bought the wrong switches you can explain to them in a proposal or something why they need to purchase a new switch that better aligns with the companies needs, if the ones they bought are not doing what they initially wanted
but yes tell us the model when you get the chance
I don't even know of a switch with DTE ports. Like when I hear DTE I think DTE/DCE old style serial
WOW, that thing is OLD
Like so old there isn't any documentation in Google for it 😛
Like not even Alloy's own site shows anything
I would not be surprised it was just totally broken with it being so old
I bet thats not auto port sensing
Maybe it does not have auto-uplink and that was causing an issue somewhere
Yah, DTE makes me think it's some form of console port maybe or for clock signaling, maybe an early serial RJ45 port of some kind. I've never heard of MPR though and I'm not finding anything on it
Maybe it's related to multipoint relays?
But that would be a really weird thing to have on this switch
well a google brought up an Experts 123 page
MPR is where twisted pair connects and DTE is where workstation connect, so I am guessing cross over versa non cross over
So.. completely not relevant for 10 computers, some phones and a DVR?
well computer is interchangeable with network device really
if someone could help a bit at tech support i would rly appreciate it
nvm
i found the solution
you could have a the possibility that your newer devices won't communicate at 100mb, do you get link? and that is really just pin matching up
for example I had an HP deskjet that only had a 10/100 card in it, my 10gb SFP to Cooper just wouldn't communicate with it, wouldn't go that slow, 1g was its min, so I had to toss in a netgear switch to use the printer on the network
Well the switch was picking up a connection to the router, and one of the pc's get a link when I plug it in, but still no data
Think I'm going to convince them to spend pocket change and buy some cheapo switches.
and you are not plugging in a cable to both DTE and MPR ports right?
Nope.
Nothings been upgraded on this network in like 15 years
The "server" was running Windows 98 until I convinced them to upgrade it.
trying to port forward a tcp port, and when i do, it doesnt seem to be working
@bright forge
Something bound to the port?
its for this thing called Remotr
@covert ibex so it might be that, just a very very old switch that needs replacing
and to use it on a non local wifi your suppost to forward TCP port 8193
older that it doesn't work with the new network connections your work has in place now
i have a static ip and whatnot and i think i did it right too
this is how it should look like when port forwarding a single tcp port right?
Yep
idk why its not working
do i need to make a special rule for it in my firewall by chance?
@bright forge no, did you try restarting the router to see if the rule will then take effect?
device ip should be the computer in your local network
your device should also have a firewall rule that opens said forwarded port, if it uses one
okeh
Weird question: Does anyone know if chromebooks have any packet analyzing software on them
Built in
If you have linux installed and enabled, it might come with some default tools like tcpdump but I am unsure. Other than that, I am not aware of anything built in. There is not a lot that can be done without installing new things
@bright forge Linksys ew
even the mod is shitposting
@waxen scroll 
Was speaking with the ISP tech yesterday. He came to test our speed because he'd opened it up to 250Mb/s. Unfortunately, we were seeing 50Mb/s. After several hours of troubleshooting, it was our fucking Linksys router, which decided to cap itself, even after several reboots. Had to factory reset the fucker. Ended up replacing it last night either way.
i could have told you that
Yeah, right.
had the same problem years ago
It's not an old router.
Linksys, linking to new problems
Linksys used to be reliable, then they sold out to Belkin.
i hope pol did his homework
I wish there were ways to somehow achieve faster upload speeds for file sending without having to buy an expensive line
Its not like I can use a cloud VM because they will charge me money to use its resources to create vm, export it out and then time to send it to the destination
if only a line could be fooled into uploading faster :(
Still working on my project, I have until the 25th to submit it to my professor.
I’m not going to procrastinate though, I also have my programming 1 homework to do as well.
That moment when you join a channel and see 400+ messages. 
It’s not surprising though, since this is a public Discord server.
seriously, I dont like doing full time for school its so annoying
i hate going in 4 days a week because classes were already packed by the 2 day them being available
My networking courses were never selected like that
I miss networking...
It’s not surprising though, since this is a public Discord server.
@little schooner @clear igloo
All good now.
I convinced them to upgrade to NBN with wireless backup, so in turn, whole network is getting upgraded from 10/100 to 100/1000 as well as switches, PCI cards and new server.
20 years of no upgrades was apparently killing the office staff.
😂 😂
I have no Ethernet Wall thingy in my TV room and I the motherboard on my HTPC has no WiFi
Anyone got 10gigabit internet yet
I've got 10Gigabit intranet 😄
I'm now jealous of my school 😐🙂
And they don't use them 🙂
But I can't take them 😐😐😐 and have fun all night in my house
@median ore If those are early gen 2950 servers then they are STUPID loud even at idle
Dell Power Edge R200 with Intel Xeon inside.
At least, that’s what I think I saw in the image.
The three bottom ones are 2950’s
The R200 isn't too bad but I had a 2950 and I could hear that thing downstairs when it was upstairs inside a closet with the door closed and sound dampening foam inside the closet
Well ... maybe just replace fans with quieter ones ?
You can't, they use proprietary connectors
For each version ? If you buy the same brand they should fit ?
It's probably better to buy a cheap server then hope you can get those as you can get more modern machines for cheap and they use less power
There aren't replacements, there is 1 model for the 2950 and that's it. You don't have "quiet" versions
Besides, as @carmine moss said, they suck up a ton of power. One will pull ~300 watts or so at idle iirc wheras a new server like the R620 is quieter and sips power by comparison, only hitting about 200 watts at about 50% load with more powerful CPUs inside
oh but they aren't cheap right ?
Depends but you can pick up an R620 with decent CPUs and RAM for about $400 to $500 on ebay
do you have any link ? the one i find are way more than 500
they are 1u ... aren't they louder than 2 or 4u ones ?
Compared to the 2950, no
I've got two running now in my closet and with the door closed I sleep without ever hearing them
hum ... yes ... so i think i will need to turn my server off over night if i want to sleep
@pine panther I have had 10gb for about 6 months now, will never go back
wait its been longer than that almost a 10 months
the hardest part about it is finding a speed test server that can really test at 10gb speeds
One of my servers has 10G but I have yet to figure out a way to actually generate that much traffic with it.
No local SpeedTest server is that fast
Maybe HE’s Iperf Server
finding two 10G equipped servers over the internet sounds expensive
I have an R710 and even that is going end of support for esxi
No way those other servers are supported
Cant DL a torrent with the most seeds and see what happens?
Ok so, in my diagram I'm using a Class C IPv4 Addressing. My router has an IP of 192.168.0.1 and a subnet mask of 255.255.255.224.
Do I need to add a gateway IP to my router? I would think not. Also since the network address is going to be 192.168.0.0 what do I assign to the switch?
I really don't understand why I'm struggling so much which something that should be so simple.
It's literally 5 Desktop PC's(Wired) 1 File Server(Wired) and 1 Printer(Wired) and finally one wireless AP that connects to the network, and all that connect to the internet.
don't you assign the switch a random IP of your choice?
Because that wouldn't make sense. The devices on the local wired network need to be able to communicate to the router.
I can't just assign the switch an IP of 192.168.0.0 because that is the network address.(The physical network cable address that goes to the switch.)
is the router connected to a modem/media converter/ONT or something?
@thick minnow
Start from the start..
- Connection to internet happens where?
No, I'm supposed to have a firewall in the diagram that connects to the internet.
There are 5 users in the organization. A server should be available for file sharing and a printer which should be network based. One of the rooms requires wireless connection to the network. There is a Firewall device on the perimeter and then that connects to the Internet. You must assign IP addresses, subnet masks and gateway IP address to all components that would need one.
Why that subnet mask?
IP Address: 192.168.0.1
Network Address: 192.168.0.0
Usable Host IP Range: 192.168.0.1 - 192.168.0.30
Broadcast Address: 192.168.0.31
Total Number of Hosts: 32
Number of Usable Hosts: 30
Subnet Mask: 255.255.255.224
cidr mask /27
Does the router even need a subnet mask?
i specified a subnet when i configured my router, so i would say yes xD
So the one I have is ok?
yep
If you have an internet connection through a firewall, why the router?
the problem is that you don't have internet on the devices, right?
according to the instructions that I posted above.
This diagram is for a college homework project
as a gateway IP i would think of the IP of the modem or whatever interacts to the ISP internet connection
I figured I'd ask you guys from some help since you guys know a lot about this stuff.
there's definitely people in here that can help you 😄
I just feel so anxious right now because I just want to get this stupid diagram done and sent for grading to my professor but I can't because I'm not quite sure what is the simplest way of creating this diagram while making sense.
I feel very ashamed of myself for struggling on this very simple shit that is very difficult for me to figure out.
Why not just add a cloud, connect it to the firewall, and assign the firewall and cloud an IP address from a /30 network. Then you have your internal network gateway on the firewall or router, a /30 link between the two as well, and then a /28,/27, or /whatever for the internal subnet
If you REALLY want to show off you could use a /31 for the point to point links from router -- firewall and firewall -- cloud but it's not needed in this case
I want simple as possible, so : Cloud>Firewall(Assign the Firewall an IP?)>Gateway>Router>Switch(AP connected to Switch?)>Wired Network.
Cloud > Firewall > Router > Switch > AP and clients
Cloud > Firewall = /30
Firewall > router = /30
Router > Switch = Nothing
Router = Gateway + Subnet Mask
AP and each client = An IP in the subnet + Subnet Mask
Call the switch Layer 2 and don't put an IP on it
Or Router > Switch = /30
Gateway goes on the SVI on the switch then
So... Firewall - switch - Lan/wlan
Managed switch covers router config
Firewall - pfsence 1100
Switch - TL-SG116
Wireless network - Asus BRT-AC828
Rest you should be able to fill in.
You use a different /30 network for each of the point to point links
I'm not hooking up multiple routers or routes here.
How are you going to route from Switch > Router > Firewall > Cloud then?
@rocky badge what does "OOOOF" mean 🤔
You need routed links since the router > firewall and firewall > cloud link is not going to be Layer 2, it's Layer 3
I understand what you're saying but the address of the connection between the Switch and Router would 192.168.0.0 as that is the network address yes?
@rocky badge oh ok
Are you saying that I should be using a different addressing scheme? The devices on the wired ethernet network are using a Class C CIDR addressing scheme.
What's the full address space you were given to use for this assignment?
I wasn't given one.
It just says: "You must assign IP address, Subnet Masks, and Gateway IP's to all devices that would need one."
Then do:
Cloud <----> Firewall
Cloud = 1.1.1.1/30
Firewall = 1.1.1.2/30
Firewall <----> Router
Firewall = 192.168.0.1/30
Router = 192.168.0.2/30
Router <----> Switch
Router = 192.168.1.1/24 (It would have a sub-interface to the switch which would have a trunk interface going to the router)
AP = 192.168.1.2/24 with a gateway of the router
Ok, but again there are no wireless devices on the network. It's all wired. The AP is there incase you just need to use it.
I just want simple answers man, I don't understand why such a small little network needs to be so complex.
Why can't it just be Ethernet Network>Switch>Gateway>Firewall>Internet?
and just have the AP connected to the Gateway?
Gateway is a term, not a device. You connect the AP to a switch
Sure a gateway can be equal to a router but that's what I just put up there
Why does the cloud have an IP address?
It's your ISP, you have a link from you to the ISP, you need an IP address to communicate between you and the ISP
Ah ok.
Instead of using 192.168.1.1/24 for the Router couldn't I just use 192.168.0.1/27 instead?
It would be a total of 30 host devices on that network address of 192.168.0.0
You can, yes, would just have to change the firewall <----> router to 1.1 and 1.2 instead
@rocky badge hush, it's all examples to help
😛
lel
Thanks for the help guys, I'll just do the best I can.
The reason you cannot have overlapping addresses on the point to point links comes down to subnetting itself, you can't have overlapping subnets on two different L3 interfaces
I mean, I could go into why and how you can do that, but that's not keeping it simple 😛
So what should the Firewall and Router address be again?
192.168.1.1/30 and 192.168.1.2/30
yes
Yup, perfect
What about the connection to the router from the firewall should that also use a bolt?
you can, yah
k
dat homework
Firewall <----> Router
Firewall = 192.168.0.1/30
Router = 192.168.0.2/30
Router <----> Switch
Router = 192.168.1.1/24
Why does it go from /30 to /24?
Do i need to add a second router?
tell us why you think it shouldnt go to /24 first
not now blob
:(
/24 is ok. It's the default class C for private internal addressing right?
But what doe it mean from /30 to /24?
it means nothing o_o
thats how routing works
@clear igloo you did a bad job at splainin
I get that the firewall needs an internal IP and the router as well. But if they're addressing the 192.168.0.1/30 and 192.168.0.3/30 respectively. Then why/how does it change to 192.168.1.1/24 for the router again?
the router and firewall only need two addresses in your diagram to pass traffic between them. so in order not to be wasteful you use a /30... or even better a /31
you can run out of private space, so you dont want /24 on everything
if you have a direct link between two devices, its preferred to use /30 or /31
When you say direct you mean that bolt thing?
yes
That uses /30 or 31?
Yes
so you should understand why it has to be that way... next hop and all
But it's just that I didn't know you had to use a different routing subnet mask for public.
Is that because of PAT?
you dont, but in the real world you need to save IP space
its highly unlikely you'll use anything higher than /30 or /31 (2 IPs) with a connection like that
you can use /24 if you really want
NAT/PAT is a whole other topic
Since I already have my diagram using /30 for ISP, Firewall, and Router I'll just keep it as is.
So is this basically what you were talking about @waxen scroll
yep
if only two devices can be connected on the one wire, thats what you do
if you want to add a switch in between for more routers and firewalls, thats when you go into /29
you dont address the switch at all technically.... you do in more advanced networks. 192.168.1.1/24 belongs to the router interface thats plugged into the switch
But in class my professor said that you can assign a switch an IP address?...
you can for management reasons, but in your network the switch isnt participating in routing
So I don't need to assign the switch an IP in my network?
yep
Ok then.
that powerpoint you linked us is exactly how it works for networking 101
@waxen scroll I'm usually not the best at splaining 😛
Haha, I'll let you handle that for now 😛
vPC is when you love someone and someone else loves someone and you both love them together.
VDC is when you hate someone and divide them up
VRFs are when you hate yourself, everyone else, and want to not talk but still have to be near them
is that a copypasta?
Nope
nice job
i made a new tenant in our lab ACI today
no scripts. by hand
it was UGH
My previous teacher wanted to keep his lab easy to manage so he asked for class c 192.168.1.0 network
Haha, what version are you on? 3.x or 4.x?
I touched aci a little bit but just the theory on it @waxen scroll
the ACL simulation is nice
the mapping of network devices too. is good
i havent been paying attention to the version, so dunno
The same teacher requested to make an VM that has nested 2012 R2 VMs running in it
Ah, if it looks like crap then it's 2.x or less crap then 3.x but if it looks new and modern then it's probably 4.0
it's possible but ram was like 9GB and 70GB storage
it looks modern
Nah, Java 1.6 is best 😄
so i made all my shit, i didnt config from scratch, we have spine and leafs all configured... so now i need to build two VMs and run some cable to the host so i can test various things
its dizzy... the amount of things on the side you have to create and then link together
yes it's a dizzying setup
Yah, my customer hasn't moved to ACI yet. They're just rolling out VxLAN eVPN now but I wouldn't be surprised if they made the jump in another year or so
Does my diagram make sense so far? Be honest.
They think they'll manage 500+ switches manually without any scripts, controllers, etc. XD
my work does ghetto management too
Looks good @thick minnow
I understand classic LAN setups but when you need to have VLANs extended everywhere you need something, be it some crappy scripts or something to manage and deploy that stuff
we have like 40,000 network devices
Do you use excel sheets for your config templates >.>
yep
Haha, keeping it old school 😃
for small deployments we do
we have a system to push large ones, but our stuff isnt standardized well
Do I assign anything to the Switch in my diagram? Because I'm supposed to write an explanation of my project as part of my assignment. What do I say about the switch?
it only works in some chunks of network
You can say it's a layer 2 switch, it's just switching packets, the L3 gateway lives off a trunk port connected to the router
router on a stick 😃
I don't have a gateway in my diagram.
The gateway is the router's interface facing the LAN
the company is so large that its not feasible to launch a standardization program because shittons of money will be needed and we would need to increase contractors
I also don't have any trunking ports/labels on my diagram do I need them?
@waxen scroll Money is always that factor that holds a lot of things back 😦
@thick minnow If you want to put them in, you can, but for just a simple setup I don't think you need to put it in there. Can call it VLAN 1 or VLAN 900, doesn't matter much in this case
Create a diagram showing the network and label all components and their IP addresses.
Well, in this case I'm not going to.
I'm trying to keep it as simple as possible here.
built you a diagram
Uhh

