I'm D'nating access to my web server via my Linux Gateway with this statement.
iptables -t nat -A PREROUTING -p tcp -i eth0 --dport 80 -j DNAT --to 172.16.0.148
This works great as long as the default gateway on the web server (172.16.0.148) points to the Linux Gateway.
However, I need to set the default gateway of the web server to somewhere else (an alternate internet connection) When I do this the reply packets never make it back to the gateway, and I have an asymetric routing situation (Kinda as expected really).
My Question is;
Is there a complimentary iptables statement that I can use to SNAT's the inbound packet so that the web server
see's the source as the Linux gateway hence the packet is returned there where upon it is readdressed back to the real originating client in the outside world?
I know that I can put Apache on the Linux Gateway and reverse-proxy but... just wondering if there was
"a better way (tm)"
TIA's
P.
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