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