Hello Pascal, Great that solved the problem that has been keeping it from working. Thanks for the insight. Regards, Pieter Smit On Mon, Dec 14, 2009 at 5:31 PM, Pascal Hambourg <pascal.mail@xxxxxxxxxxxxxxx> wrote: > Hello, > > Pieter Smit a écrit : >> >> [A] Senario: >> Linux gateway (T1) with 3 Ethernet cards eth0,eth1,eth2. >> 10.0.0.1(plc1) <->eth1@T1 10.0.0.101/24 >> 10.0.0.1(plc2) <->eth2@T1 10.0.0.102/24 >> 192.168.3.155(xp)<->eth0:1@T1 192.168.3.201/24 (nat to eth1-plc1) >> 192.168.3.155(xp)<->eth0:2@T1 192.168.3.202/24 (nat to eth2-plc2) > [...] >> [C] Problem >> c1-we are only able to ping through to one of the PLC's. Looking at >> the tcpdumps T1-Linux-gw does not respond to arp requests on eth2 >> interface for it's locally configured IP. (although it(T1) arped for >> 10.0.0.1 out the correct interface and sent the icmp request out) >> >> If we down eth1 then the pings work fine out eth2, and if we bring >> eth1 up again, eth1 has the problem. > > If sysctl net.ipv4.conf.<interface>.rp_filter is set to 1, try to set it > to 0. > -- To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
