this post was submitted on 23 Aug 2023
23 points (96.0% liked)

Selfhosted

40152 readers
428 users here now

A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

Rules:

  1. Be civil: we're here to support and learn from one another. Insults won't be tolerated. Flame wars are frowned upon.

  2. No spam posting.

  3. Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it's not obvious why your post topic revolves around selfhosting, please include details to make it clear.

  4. Don't duplicate the full text of your blog or github here. Just post the link for folks to click.

  5. Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).

  6. No trolling.

Resources:

Any issues on the community? Report it using the report flag.

Questions? DM the mods!

founded 1 year ago
MODERATORS
ruud@lemmy.world
Loki@lemmy.world
CannaVet@lemmy.world
devve@lemmy.world
HybridSarcasm@lemmy.world
HybridSarcasm@lemmy.hybridsarcasm.xyz
23
Looking to build a router/firewall nox for my home network (lemmy.world)
submitted 1 year ago by squigglycunt@lemmy.world to c/selfhosted@lemmy.world
12 comments fedilink hide all child comments
 

TLDR; looking to combine Lenovo ThinkCentre M720q with a Mellanox dual 10Gbps SFP+ PCIe card to create my dream homelab router/firewall

Hi,

I'm looking to set up a router/firewall for my home network, behind my ISP's router.

Here's my current setup :

  • ISP Router : 1xSFP+ 10Gbps, 4xRJ45 1Gbps, used as a (temporary) NAS

  • Switch : 1xSFP+ 10Gbps, 3xRJ45 2.5Gbps, 8xRJ45 1Gbps

  • Proxmox Host : RJ45 2.5Gbps

  • 3 laptops, IoT devices, ...

I'm looking to insert this new device in-between the existing router and the switch, meaning it has to have dual SFP+ to be able to uplink and downlink at 10Gbps. It's a bit overkill but it means I'll be fully utilizing my ISP box and my switch to their full potential, with some headroom.

I've looked around and found nothing that checks all boxes, while trying to keep this under budget (~300€ max). I've finally landed on a frankenstein combination but I wanted to verify that the parts all are compatible and that I wouldn't have any nasty surprises when everything finally comes together (from different sources)

Here's my router proposal :

I'm wondering especially about these things :

  • is the card compatible with the pc?

  • will the 65W adapter suffice to power everything ? and if not, can i safely use a larger brick?

  • can the pc handle the dual 10G traffic, knowing either stream will rarely be fully saturated? RAM upgrades are no issue, planning at least 16GB to start

  • any other issues I should be wary of?

  • any other hardware suggestions that work better/are cheaper?

This combination should also be a good thing if i run it with proxmox to host a few network related services, such as pihole, wireguard...

Thank you :D

you are viewing a single comment's thread
view the rest of the comments
[–] infinitevalence@discuss.online 8 points 1 year ago* (last edited 1 year ago) (2 children)

No that card wont work, it will cook its self in an M720q.

What you want is a https://www.ebay.com/sch/i.html?_from=R40&_trksid=p3814320.m570.l1313&_nkw=MCX312B-XCCT&_sacat=0 MCX312B which runs much cooler and can comfortably fit in an M720q.

the default 65w PSU is fine with an i3/i5, but you can get a larger one if you want. I can try testing idle power though I am on a 110v/60hz system so it may not be exactly the same.

I have seen line speeds at nearly full bandwidth on mine in synthetic testing.

I ended up adding a M.2 A+E 2.5gb network card in place of the wifi card which gives me 4 network interfaces. stock intel 1gb, M.2 Realtec 2.5gb, and 2x Melanox 10gb SFP's.

Last thing, DO NOT USE RJ45 SFPs. The draw way to much power and generate lots of heat. Use direct attach cables, or fiber to connect to switches/routers.

[–] squigglycunt@lemmy.world 1 points 1 year ago (1 children)

thanks for the detailed reply!

its cool seeing someone running this exact config. I’ll look into the card you suggested. may i ask what’s the difference between them?

im planning to run dac to uplink/downlink, currently running my switch directly to the isp box using dac

extra question: can i install some wireless card in the m.2 slot that can do vlan tagging on different SSIDs, or is that job better left off to a dedicated access point?

[–] infinitevalence@discuss.online 2 points 1 year ago (1 children)

The version I posted is connect x3 and the b variant which is the lower power version. It is still well supported in most Linux/BSD based operating systems. The connect x2 less so, plus it's on an older more power hungry design.

IDK about using the wireless card. I have APs so I never tried. I will say an AP will have much better coverage than any Wi-Fi card.

[–] AFLYINTOASTER@lemmy.world 1 points 1 year ago (1 children)

That ebay link is broken

[–] squigglycunt@lemmy.world 1 points 1 year ago (1 children)

its working for me, its just an ebay search with the terms “mcx312b-xcct”

[–] AFLYINTOASTER@lemmy.world 1 points 1 year ago (1 children)

Thanks. I would bet then that it's because it's an Amp link.

[–] draecas@lemmy.world 2 points 1 year ago* (last edited 1 year ago)

The & is the html escape code for an ampersand (&) symbol, which is used to separate query params in a url -- it appears like this has been re-encoded so the single & in the URL becomes & by something breaking the link. If you change all of the &s to $ it works. it's not really an "amp" link in the "Google Amp" meaning.

Also after posting this comment, it appears to be Lenny's url encoding, I think I've fixed it but if not, remove the amp; from the 3 sections of the url you see it and it'll work