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Canadian Luke

01:33

https://github.com/isc-projects/kea/blob/master/doc/examples/kea4/several-subnets.json

You need to make sure your network infra with different VLANs/subnets assign the correct subnet. Then Kea (and other DHCP servers) should serve IPs in the correct range. You need to enable the DHCP Relay Agent on your switches though

Journeyman Geek

@CanadianLuke Oh I don't even have switches yet

Canadian Luke

Ahhhh. So how are you VLANing?

Journeyman Geek

I'm not

OakBot

@JourneymanGeek Hi not, I'm Oak!

Journeyman Geek

sec

So - right now I have 5 ports 2x 10 gig, 3x 2.5 gig

Canadian Luke

01:35

Are you bonding them?

Journeyman Geek

one 10 gig is the internet interface (cause one dreams big), the 10 gig goes to one subnet, 2 of the 2.5 gig ports are bridged and go to another subnet

the last port will be its own subnet and firewalled off from the 2 other subnets

Canadian Luke

OK, and the ports are all on one server, right?

Journeyman Geek

Yup

Canadian Luke

So your "server" is your switch

Do you have a virtual switch setup?

Or will you?

Journeyman Geek

Probably not

Sec, lemme throw up my config somewhere

Canadian Luke

01:38

No prob

Journeyman Geek

gist.github.com/JourneymanGeek/4e98b0e93983b34cddcc2b6903a351e8

that's how the network is laid out

default via 192.168.2.1 dev wan proto dhcp src 192.168.2.105 metric 100
10.0.0.0/24 dev lan proto kernel scope link src 10.0.0.1
10.0.1.0/24 dev br0 proto kernel scope link src 10.0.1.1
192.168.2.0/24 dev wan proto kernel scope link src 192.168.2.105 metric 100
192.168.2.1 dev wan proto dhcp scope link src 192.168.2.105 metric 100

and those are the routes, though I don't recall if I explictly set them up

192.168.2.1 is my main home network

I don't recall if I set up the routes manually

gist.github.com/JourneymanGeek/d295f16e75fe7dbddce20a724f90ee17

Canadian Luke

And where do you want to provide DHCP service to?

Journeyman Geek

that's the kea config

Well, I'd wanted not to bridge lan and ethX - since they are different speeds

instead I'm running one subnet on lan, and one on eth0 and 1

I didn't have the route between 10.0.0.0 and 10.0.1.0 working earlier

Or I accidentally fixed it

what I was TRYING to do was set up eth0 as 10.0.0.2 and use 10.0.0.1 (lan) as the default gateway

Canadian Luke

I think the config provided should work....

Journeyman Geek

this is good enough

Oh it does!

It didn't when I was complaining about it

Canadian Luke

01:45

Journeyman Geek

Next thing to work out is the rough network layout

Canadian Luke

Networking can be a bitch sometimes.... I spent a couple hours configuring a network at my old worksite, and we figured out at the end.... I specified the wrong interface!

Journeyman Geek

I have a 4 10 gig + 1 gig switch, and a 8 port managed switch

Canadian Luke

I got blows dust an old-ass D-Link Gigabit switch with no smarts :P And an FS switch

Journeyman Geek

Part of the problem here is 1) some of the stuff in my old notes don't work any more

2) its a more complext set up

@CanadianLuke One unifi flex XG and a 8 port hasivo managed switch

Canadian Luke

01:47

Wait till you start using networking namespaces in Linux... :mind_blown:

Journeyman Geek

though there's a few sweet options for the fiture

lol

Canadian Luke

That's what we used during our VLAN training at work - network namespaces in a Linux VM. Talk about a mind-fsck

Journeyman Geek

this is a ... very fancy budget high end home network :D

Its not 'cheap' - but you probably can't get the capability cheaper without waiting longer

BUT you can get 10 gig cards with minor drawbacks for 20 bucks, the chinese SFPs copper adaptors were about 50 and I can get a 2 SFP + 4 2.5 gig copper switch for 90-100 usd, and I think a 8 port 10 gig copper switch for somewhere around 300 so...

Canadian Luke

I've heard good things about unify. And Ubuquity

Journeyman Geek

ah, at the time it was the ONLY affordable multigig option

Canadian Luke

01:51

Nice! I don't have anything that can take advantage of it yet though. Only got gigabit service, and all my NICs and switches are Gig

What about Microtik? I heard they had inexpensive 10G and 2.5G options

Journeyman Geek

there's a 10 gig option with my ISP though not going for it

ah, all SFP

Canadian Luke

With a plus :P

Journeyman Geek

I need to have a fair amount of copper support since I am using already existing wiring

Canadian Luke

You can still run 10G over copper.... Assuming it's CAT6 or better

Journeyman Geek

@CanadianLuke yup, the unifi switch is 'native' copper

Canadian Luke

01:53

Nice little box!

Journeyman Geek

there's no SFP+

Canadian Luke

I thought the + was required for 10G? I must have mistaken

Journeyman Geek

@CanadianLuke nope, you can have copper ethernet ports that do 10G

Canadian Luke

TIL

Journeyman Geek

ah so

PREVIOUSLY, the darling of the low budget set were mellinox cards that were pulls

aliexpress.com/item/…

these intel cards were about 100 sgd+ when I bought them I think

I run them on x4 (which is fine for a single port)

Canadian Luke

01:57

Cool, Android compatible :P

Journeyman Geek

lol

then pair it up with one of these store.ui.com/us/en/products/unifi-flex-xg

that said, if you're doing it right, the newer cards use an X4 anyway + they can drop down to the newer 5 and 2.5 gig standards

you also need to do some kernel config changes, which I found confusing

Canadian Luke

03:01

Need more money first

Journeyman Geek

lol

That's often the case lol

I bought a lot of this gear (other than the router) on the 'flexi benefits' my old company offered. I could buy insurance or buy electronics so... the core of the network was bought then

Journeyman Geek

03:50

if I had more money aliexpress.com/item/1005005584354045.html looks shiny

then I can have a single switch at my distribution box serving all my room ports

@CanadianLuke 10 gig's about twice what I'd pay for gigabit I think

I don't have a practical use for it tho

12 hours later…

OakBot

15:44

Well, if you don't have a practical use for it, then there's probably no need to spend the extra money on a 10-gigabit switch. Stick with what meets your current needs and budget.

6 hours later…

XKCD

21:40

Theranos partnership: Sorry, we know, but we signed the contract back before all the stuff and the lawyers say we can't back out, so just try to keep your finger away from the bottom of the phone.

2 hours later…

OakBot

23:40

@XKCD XKCD #2831 Explained: This is the 9th in the ongoing xkcd Phone series in which Randall explains his new joke phone designs with many strange and useless features. It is a reference to the somewhat recent Galaxy Z series, but emulating the typical paper fortune teller.

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Sep19

Sep '2320

Sep21

For all you Super Users out there. You have backups, right?

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