Hi, Here is the output of my ifconfig : eth0 Link encap:Ethernet HWaddr 00:20:78:05:EA:0B inet addr:X.y.54.140 Bcast:X.Y.54.191 Mask:255.255.255.192 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:9162662 errors:0 dropped:0 overruns:0 frame:0 TX packets:11040532 errors:1 dropped:0 overruns:1 carrier:0 collisions:0 txqueuelen:100 Interrupt:15 Base address:0xa000 eth1 Link encap:Ethernet HWaddr 00:03:6D:1C:E3:3F inet addr:X.Y.19.1 Bcast:X.Y.19.31 Mask:255.255.255.224 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:613065 errors:0 dropped:0 overruns:0 frame:0 TX packets:586288 errors:1 dropped:0 overruns:1 carrier:0 collisions:0 txqueuelen:100 Interrupt:5 Base address:0x9000 eth1:0 Link encap:Ethernet HWaddr 00:03:6D:1C:E3:3F inet addr:X.Y.19.2 Bcast:X.Y.19.31 Mask:255.255.255.224 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 Interrupt:5 Base address:0x9000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:3924 Metric:1 RX packets:42 errors:0 dropped:0 overruns:0 frame:0 TX packets:42 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 The kernel used is 2.2.20 and the driver is (for both cards) the tulip driver (Comet chip). Packet forwarding takes place between eth0 and eth1. Given that the one error seems to be on the TX line for both interfaces, it seems that the errors originated from this machine. Are there any tools I could use / parameters for the driver which I could set to allow me to track down what is the cause of these errors? Thanks, Kenneth - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html