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Subject: Routing? problem From: Chris Maresca <ckm@crust.net> Date: Wed, 5 Apr 2000 18:18:38 -0700 (PDT) All, I'm having a problem with our firewall/router. Here's the arrangement: +----------+ +-----------------------+ | dsl line |--------| linux firewall/router |--------| internal net | +----------+ +-----------------------+ The linux firewall box is setup as a masq. machine with the other end of the DSL line as it's gateway. The DSL bridge box has no address. Here is the output from netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 207.xxx.xxx.18 0.0.0.0 255.255.255.255 UH 0 0 0 eth1 10.1.1.1 0.0.0.0 255.255.255.255 UH 0 0 0 eth0 207.xxx.xxx.16 0.0.0.0 255.255.255.248 U 0 0 0 eth1 10.1.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 127.0.0.0 0.0.0.0 255.0.0.0 U 0 0 0 lo 0.0.0.0 207.xxx.xxx.17 0.0.0.0 UG 0 0 0 eth1 When the DSL line goes down, everything on the internal net becomes unreachable, basically. Otherwise, it works fine... I don't really understand what's going on, and I've searched Deja for answers... Some people suggest adding routes to the interfaces... Any help/pointers is appreciated. Thx. Chris. ===