[SR-Users] Kamailio Behind TCP Load Balancer

[Colin Morelli]

Hey all,

I'm looking to put Kamailio behind a TCP load balancer that is SIP-unaware.
My application is deployed in AWS and I'm tying to place Kamailio behind an
ELB.

For the most part, everything is fine. For my specific implementation I'm
disabling UDP as a signaling transport and using only TLS. This enables me
to not have to worry about a SIP-aware LB at the edge because replies to an
incoming request will be sent over the existing established TCP socket
(avoiding any crazy routing requirements).

However - this poses an issue with source addresses. Does Kamailio support
anything like the proxy protocol (
http://www.haproxy.org/download/1.5/doc/proxy-protocol.txt) for getting TCP
stream information from a load balancer? Do I need to go back to exposing
it directly to the world so that I can get source addresses?

Thanks,
Colin
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