root@giant:/lib/modules/2.6.17-10-generic# iptables -L -v Chain INPUT (policy DROP 622 packets, 62452 bytes) pkts bytes target prot opt in out source destination 0 0 ACCEPT udp -f ppp0 any anywhere anywhere udp spt:www 0 0 ACCEPT tcp -f ppp0 any anywhere anywhere tcp spt:www 0 0 ACCEPT tcp -f ppp0 any anywhere anywhere tcp spt:irc 0 0 ACCEPT udp -f ppp0 any anywhere anywhere udp spt:irc 0 0 ACCEPT udp -f ppp0 any anywhere anywhere udp spt:msnp 0 0 ACCEPT tcp -f ppp0 any anywhere anywhere tcp spt:msnp Chain FORWARD (policy DROP 0 packets, 0 bytes) pkts bytes target prot opt in out source destination 0 0 TCPMSS tcp -- any ppp0 anywhere anywhere tcp flags:SYN,RST/SYN tcpmss match 1400:1536 TCPMSS clamp to PMTU Chain OUTPUT (policy ACCEPT 9117 packets, 622K bytes) pkts bytes target prot opt in out source destination