> -----Original Message----- > From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list- > bounces@xxxxxxxxxx] On Behalf Of Romeo Theriault > Sent: Thursday, June 16, 2011 4:22 PM > To: General Red Hat Linux discussion list > Subject: Re: iptables forwarding help > > On Thu, Jun 16, 2011 at 4:27 PM, Steven Buehler <steve@xxxxxxxxxxxx> > wrote: > > > > I have been googling and researching iptables and forwarding all day > > and still can't figure this out. > > Try something like this (untested): > > # Make sure that this is set to 1 to enable forwarding. > cat /proc/sys/net/ipv4/ip_forward > > # If it's not set, set it with: > echo 1 > /proc/sys/net/ipv4/ip_forward > > # Setup your iptables rules that you need to enable the forwarding. In this > example, I'm just forwarding traffic from a specific ip to another another ip. > > iptables -A FORWARD -i eth0 -o eth1 -p tcp --dport 2222 -m state --state > NEW,ESTABLISHED,RELATED -j ACCEPT iptables -t nat -A PREROUTING -p tcp - > i eth0 -d <eth0_ip> --dport 2222 -j DNAT --to <internal_server_ip>:22 > iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE > Thanks, it was the last line that I was missing iptables -t nat -A POSTROUTING -o eth1 -j MASQUERADE -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
