it's being dropped because you have allowed TCP port 80 on 219.118.175.0/24 ONLY.. looking at your logs it shows the IP as DST=203.179.86.66 which isn't to that network.. HOW BIG is your network??? Thanks, ____________________________________________ George Vieira Systems Manager georgev@xxxxxxxxxxxxxxxxxxxxxx Citadel Computer Systems Pty Ltd http://www.citadelcomputer.com.au Phone : +61 2 9955 2644 HelpDesk: +61 2 9955 2698 -----Original Message----- From: Jean-Christian Imbeault [mailto:jc@xxxxxxxxxxxxxxxx] Sent: Monday, August 04, 2003 3:12 PM To: netfilter@xxxxxxxxxxxxxxxxxxx Subject: Newbie: why is this packet being dropped/logged? I am relatively new to iptables. I have set up some basic rules for my web server to allow only SSH and HTTP traffic (listed below). But I am finding some log entries showing packets that were trying to connect to port 80 getting logged (and dropped). I can't understand why these packets were logged as I thought my rules would let through any packet trying to connect to port 80. # iptables -n -v -L Chain INPUT (policy DROP 279 packets, 14864 bytes) pkts bytes target prot opt in out source destination 238 47040 ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0 366M 21G ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED 2199K 120M ACCEPT tcp -- eth0 * 0.0.0.0/0 203.179.86.66 state NEW,RELATED,ESTABLISHED tcp dpt:80 38 1824 ACCEPT tcp -- eth0 * 219.118.175.0/24 203.179.86.66 state NEW,RELATED,ESTABLISHED tcp dpt:22 0 0 DROP udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:67 0 0 REJECT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:113 reject-with tcp-reset 0 0 REJECT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:137 reject-with icmp-port-unreachable 0 0 REJECT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:138 reject-with icmp-port-unreachable 0 0 REJECT tcp -- * * 0.0.0.0/0 0.0.0.0/0 tcp dpt:138 reject-with icmp-port-unreachable 0 0 REJECT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp dpt:139 reject-with icmp-port-unreachable 279 14864 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 LOG flags 0 level 7 prefix `DROP:' Here is one of those log entries: kernel: DROP:IN=eth0 OUT= MAC=00:d0:b7:e1:13:e7:00:90:fe:1e:50:a6:08:00 SRC=66.69.93.167 DST=203.179.86.66 LEN=40 TOS=0x00 PREC=0x00 TTL=105 ID=8622 DF PROTO=TCP SPT=1439 DPT=80 WINDOW=64952 RES=0x00 ACK URGP=0 Can someone help me understand why this packet was dropped? Thanks, Jean-Christian Imbeault
