Re: [CentOS] iptables: forwarding on internal device

-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Marcus Moeller Sent: Monday, February 09, 2009 2:59 AM To: CentOS mailing list Subject: Re: [CentOS] iptables: forwarding on internal device

Good Morning,

iptables -L -v now shows:

0     0 ACCEPT     all  --  eth0   eth0    anywhere

anywhere state NEW,RELATED,ESTABLISHED

But the packages are still dropped:

Feb 9 10:48:20 firewall kernel: DROP-TCP IN=eth0 OUT=eth0 SRC=192.168.100.192 DST=172.28.2.161 LEN=44 TOS=0x00 PREC=0x00 TTL=59 ID=54 PROTO=TCP SPT=9100 DPT=4068 WINDOW=0 RES=0x00 ACK SYN URGP=0

Could it be that I have to enable something in proc to allow forwarding on an internal device?

Best Regards Marcus

Yes that would be correct Marcus echo it into /proc or in /etc/sysctl.conf would be # Controls IP packet forwarding net.ipv4.ip_forward = 1

JohnStanley