port forwarding

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Hi,

I'm using CentOS release 5.6 (Final) and Xen 3.1. I'm writing to ask how to configure port forwarding. With virt-manager 0.6.1 I added the machines, but there I don't see an option for port forwarding.

I would like to reach the VM on a specific port of the host machine. Once the machinces are running, I can configure iptables so that the port forwarding works, but after host reboots, other rules are inserted (put in front of my rules), which disable my rules. I guess these rules are put by libvirt, and so I'm writing to this list.

These are the rules inserted:

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination
ACCEPT all -- anywhere 192.168.122.0/24 state RELATED,ESTABLISHED
ACCEPT     all  --  192.168.122.0/24     anywhere
ACCEPT     all  --  anywhere             anywhere
REJECT all -- anywhere anywhere reject-with icmp-port-unreachable REJECT all -- anywhere anywhere reject-with icmp-port-unreachable

I need to have a different rules for 192.168.122.0/24: the states RELATED,ESTABLISHED are fine, but I need the NEW state put there too, so that the new forwards can go through.


Thanks,
Irek

--
Ireneusz (Irek) Szczesniak
http://www.irkos.org

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