Hi, I'm running an iptalbes firewall and I have a machine sitting behind the firewall that runs Outlook. The user of that machine therefore should be able to connect to pop3 servers on the Internet.
When I understand right, his Outlook (port 110) packets should go through the FORWARD chain of my iptables machine, but for some reason they seem to be filtered: This is my FORWARD chain config: Chain FORWARD (policy DROP) target prot opt source destination TCPMSS tcp -- 0.0.0.0/0 0.0.0.0/0 tcp flags:0x06/0x02 TCPMSS clamp to PMTU ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 forward_ext all -- 0.0.0.0/0 0.0.0.0/0 forward_int all -- 0.0.0.0/0 0.0.0.0/0 LOG all -- 0.0.0.0/0 0.0.0.0/0 LOG flags 6 level 4 prefix `SuSE-FW-UNALLOWED-ROUTING' DROP all -- 0.0.0.0/0 0.0.0.0/0 ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state NEW,RELATED,ESTABLISHED LOG all -- 0.0.0.0/0 0.0.0.0/0 LOG flags 6 level 4 prefix `SuSE-FW-FORWARD-ERROR' Chain forward_int (1 references) target prot opt source destination LOG all -- 131.180.77.19 0.0.0.0/0 LOG flags 6 level 4 prefix `SuSE-FW-DROP-ANTI-SPOOF' DROP all -- 131.180.77.19 0.0.0.0/0 LOG all -- 0.0.0.0/0 131.180.77.19 LOG flags 6 level 4 prefix `SuSE-FW-DROP-CIRCUMVENTION' DROP all -- 0.0.0.0/0 131.180.77.19 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 state RELATED icmp type 3 ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED icmp type 0 LOG all -- 0.0.0.0/0 0.0.0.0/0 LOG flags 6 level 4 prefix `SuSE-FW-DROP-DEFAULT' DROP all -- 0.0.0.0/0 0.0.0.0/0 Could anyone tell me what's going wrong here? Cheers, Raimund
