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Hi ,
I got direct routing setup , and I use iptables with the cluster
adress to make the machine accept incoming trafic.
iptables -t nat -A PREROUTING -d <cluster adress> -j REDIRECT
If I put the adress on the loopback , the server can't call the load
balancer/ cluster address ... since all traffic goes to loopback .
It works like a charm, however in my app, the backend servers can
call each other , ( via cluster adress ), this also works like a
charm, except for the case where a server is calling a service on
itself via the cluster adress.
It seems the return trafic gets lost, and I have been hard at it
trying to find a solution ....
I guess I have something similar as DNAT on the same network ....
Does anybody have any ideas ?
The only thing I have thought of is changing the ip of a packet
incoming to the machine ... based on mac ... to the IP of the machine,
this in not however easily done .
I'm going off to try to log dropped packets since tcpdump & wireshark
doesn't give me anything funky.
Best regards, Lars Segerlund.
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