Jenseitsjens

u/Jenseitsjens@lemmy.world
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DHCP usually provides three things:

  • IP Address (+ subnet mask)
  • Defaulft gateway IP
  • DNS servers

In the DHCP lease you for example get the IP 192.168.10.42/24. That IP is assigned to your interface which creates a implizit route like 192.168.10.0/24 dev netinterface. Now you know how to reach other hosts in your local network.

In the same DHCP lease, you should also receive a default gateway - likely 192.168.10.1. this would add a route like default via 192.168.10.1.

Without the default route, packets for IPs other than your local network never leave your host because it doesn't know where to send them to.

DNS servers are also provided, though before troubleshooting that, I would just ping addresses like 8.8.8.8 (google dns) for testing connectivity.

(Btw, what I'm trying to say is: DHCP is working, but your server configuration may not be correct for what you're trying to do)

You could also skip troubleshooting DHCP by running ip route add default via 192.168.10.1 to test if your firewall is configured correctly. That should enable you to ping other networks.

Just for context, this technology is not made for any specific end-consumer. This is for backbone connections of ISP and higher tier networks.

In that space, 400Gb/s is the current stuff that's being rolled out with 800Gb/s starting to get traction. 1.2Tb is just the next step to reduce the amount of Fibers and Ports used per connection (renting fibers of an undersea cable is expensive).

Though one issue I see slowing adoption is that new fibers are needed. With coherent optics we already achieve 800G with the same single mode fibers already in use.

Which fiber provider doesn't support IPv6? I thought it was only Swisscom mobile and its subsidiary's which don't support it (though from what I heard, even that is in testing now)

If by RJ45 you mean erhernet over standard 8P8C (i.e. RJ45) your looking for SFP-T modules. Can't connect that to your DSL line though since that's not Ethernet.

There do seem to exist G.fast sfp modules for dsl, but do note that sadly sfp module and router brand incompatibility is sadly a thing.

Related note: At our company we also had quite some issues getting some of these more special sfp modules working (e.g. XGS-PON), so ymmv with a dsl one.

(If you're looking for a device to plug sfp modules into, I can second MikroTik here. They're also great about accepting 3rd party SFPs)

on see you space cadet · c/90s_memes · 2 pts · 335d

Thank you so much!

I definitely played Mad Monks Revenge judging by the gameplay description. Now just gotta find out where to acquire it and if I can get it to run on Linux :)

Edit: Well that was easy to find, a rewrite for Windows, Mac and Linux! https://mmr.quarkrobot.com/

Pretty sure he's confusing it with either SFP+ or SFP28.

OSFP is the current bleeding edge with 400Gb/s of bandwidth. The current primary use case for that is ISP networks or running datacenter scale computing. The going prices for a PCIE card seems to be about 2k and around 600 for a DAC-Cable alone... compared to this 200$ mini PC, OSPF is in a completely different customer segment.

That doesn't match my experience with AUR at all. Usually it pulls a specific git revision and checks the hash. This also ensures that the build shouldn't suddenly fail to some extent.

Though it's entirely possible that it's not like this for all packages, though I find it kind of counterintuitive since your package manager wouldn't know when to perform an update in this case.