I set up a simple router with my Slackware distro following the IP-MasqueradeHow-TO.

These are my iptable policy (iptable -L -v):

Chain INPUT (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 ACCEPT all -- lo any anywhere anywhere
19 2551 ACCEPT all -- eth1 any 192.168.1.0/24 anywhere
0 0 reject-and-log-it all -- eth0 any 192.168.1.0/24 anywhere
4136 3046K ACCEPT all -- eth0 any anywhere panci.panci.com state RELATED,ESTABLISHED
269 13134 reject-and-log-it all -- any any anywhere anywhere

Chain FORWARD (policy DROP 1 packets, 63 bytes)
pkts bytes target prot opt in out source destination
198K 117M ACCEPT all -- eth0 eth1 anywhere anywhere state RELATED,ESTABLISHED
252K 279M ACCEPT all -- eth1 eth0 anywhere anywhere
0 0 reject-and-log-it all -- any any anywhere anywhere

Chain OUTPUT (policy DROP 0 packets, 0 bytes)
pkts bytes target prot opt in out source destination
0 0 DROP icmp -- any any anywhere anywhere state INVALID
0 0 ACCEPT all -- any lo anywhere anywhere
0 0 ACCEPT all -- any eth1 panci.panci.com 192.168.1.0/24
0 0 ACCEPT all -- any eth1 192.168.1.1 192.168.1.0/24
0 0 reject-and-log-it all -- any eth0 anywhere 192.168.1.0/24
4810 983K ACCEPT all -- any eth0 panci.panci.com anywhere
0 0 reject-and-log-it all -- any any anywhere anywhere

Chain reject-and-log-it (5 references)
pkts bytes target prot opt in out source destination
269 13134 LOG all -- any any anywhere anywhere LOG level info
269 13134 REJECT all -- any any anywhere anywhere reject-with icmp-port-unreachable


in my sys.log i got a lot of entries like this one:

IN=eth0 OUT= MAC=00:10:a7:2a:77:6e:00:07:84:a6:b7:7c:08:00 SRC=80.239.200.105 DST=1.1.99.77 LEN=40 TOS=0x00 PREC=0x00 TTL=48 ID=42666 DF PROTO=TCP SPT=3000 DPT=3658 WINDOW=5764 RES=0x00 ACK FIN URGP=0


and some like these one


eth1: received irq with unknown events 0x1. Please report



Does it mean that all these logs are incoming packets rejected because they are not related with an outgoing connetion started from my internal network ??and what does mean received irq with unknown events 0x1

Thanks