Routing issue?

[alecaugh]

I am able to run Fenrir such that the legitimate PC can send and receive traffic and that the attacker's machine can ping the LAN's default gateway.

However, when I try to communicate with anything else on the LAN, or on other subnets, the connection times out/is not reachable. Weirdly, running a traceroute to any other IP shows the first line as the Fenrir TAP interface 10.0.0.42 (time of ~3000ms which seems large), and then the traceroute terminates without attempting any more steps.

Has anyone seen this problem before? Am I missing some important configuration step? Any help would be great.

Pour info, the default gateway is set to the TAP interface, both ethernet interfaces have promisc mode activated. If any more info is required don't hesitate to ask.