From: Mauricio Tavares <raubvogel@gmail.com>
To: netfilter@vger.kernel.org
Subject: newbie: forward rule to itself
Date: Wed, 27 Oct 2010 15:02:36 -0400 [thread overview]
Message-ID: <4CC8774C.1070908@gmail.com> (raw)
Let's say I have server1 with two ports, eth0 and eth0, and server2
whose eth0 port is connected to server1's eth1. And let's say the subnet
between them is 192.168.1.0/24 while the one server1's eth0 is connected
to is 192.168.4.0/24.
I have the following rules to forward port 6969 coming on eth0 on
server1 to port 6969 on server2's eth0:
iptables -A PREROUTING -t nat -p tcp --dport 6969 -j DNAT --to
192.168.1.server2:6969
iptables -A INPUT -d 192.168.4.server1 -p tcp -m tcp -m state --state
NEW --dport 6969 -j ACCEPT
iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
Any machine in 192.168.4.0/24 seems to be able to get to server2 by
using 192.168.1.server1:6969. But, if I try to connect to
192.168.1.server1:6969 on server1 itself, I will not be forwarded to
server2. What am I missing here?
next reply other threads:[~2010-10-27 19:02 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-27 19:02 Mauricio Tavares [this message]
2010-10-27 19:17 ` newbie: forward rule to itself Jan Engelhardt
2010-10-27 19:47 ` Mauricio Tavares
2010-10-27 20:00 ` Jan Engelhardt
2010-10-27 21:03 ` Mauricio Tavares
2010-10-28 8:01 ` Pascal Hambourg
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