BonkTheAnnoyed

Wireshark LAN access fails when router VPN client is active

https://lemmy.blahaj.zone/post/34992981

Blåhaj Lemmy - Choose Your Interface

Nov 28 at 3:47pmWeb
Show threadslazer2auNov 28
I must be thinking of the wrong Wireshark because the one I know of is a packet capture program not a VPN client/server.
Show thread0x0Nov 28
Maybe Wireguard?
Show threadBonkTheAnnoyedNov 28
Yep. Edited. Definitely autocorrect’s fault, noty morning brain fog.
Show threadBonkTheAnnoyedNov 28
No, actually you’re right. I meant wire guard.
Show threadslazer2auNov 28
All good mate.
Show threadDevoidWisdomNov 28

Just to verify do you have acces to the router from remote client?

Are you routing all traffic from the remote device through your lan router, or using split tunnel?

Im not a network pro, but I am running a very similar setup to circumvent CG-NAT and access lan servers. Things that I ran into were making aure I had the correct “Allowed IPs” set on all clients, and proper “routes” setup on the router.

Show threadnon_burglarNov 28

There are two solutions to this:

  • Add routing to your wireguard server instance to allow the VPN intermediary subnet to reach your lan subnet or
  • Allow your wireguard client to split-tunnel, so it can reach subnets that aren’t reachable outside your WG tunnel.
    • Show threadBonkTheAnnoyedNov 28
    Thank you, this is really helpful, a good place to start.