Hello, It seems that there is something wrong with "sent an invalid ICMP type" mesage since the "[IPV4]: Be more verbose about invalid ICMPs sent to broadcast" (~2003-06-23) patch. # tcpdump -i eth0 -n icmp tcpdump: listening on eth0 14:24:54.236365 192.168.0.108 > 192.168.0.230: icmp: net 192.168.3.255 unreachable (DF) Before 2.4.22-pre2: 192.168.0.108 sent an invalid ICMP error to a broadcast. After 2.4.22-pre2: 192.168.0.230 sent an invalid ICMP type 3, code 0 error to a broadcast: 192.168.3.255 on eth0 uname -a: Linux nannou 2.4.22-pre3 #1 Wed Jul 9 17:24:09 CEST 2003 i686 unknown Best Regards, Krzysztof Olędzki - : 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