[lvs-users] Transparent proxy with Locanode

[David Hinkle]

Hey everybody.  I'm using the ip policy hack to get transparent proxy going like this:

ip rule add prio 100 fwmark 1 table 100
ip route add local 0/0 dev lo table 100

That redirects packets that I've marked with fwmark 1 into the "local" machine so that lvs will see them.

This is all working, I can distribute incomming connections to realservers, however, I run into problems when I try to use the localnode feature.

If I have 
/sbin/iptables -t nat -A PREROUTING -p tcp -s 10.0.0.1/8 --dport 80 -j REDIRECT --to-port 8080
in my PREROUTING table so that the local machine can intercept, connections routed to the local node work and connections routed to the other peers fail, if I delete the rule connections to the local node fail and connections to the remote hosts work.

Any ideas?  Can I tell the connections apart in iptables so that I can create a rule to skip the redirect for packets leaving for other realservers?  Can I get lvs to bypass PREROUTING for packets going out?

David