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On Nov 2, 2015, at 10:24 PM, Christopher Smith <> wrote:

ELB supports layer-4 load balancing, which would just multiplex inbound TCP connections (with an added bonus of offloading TLS), but I'm concerned about losing client IP addresses. ELB actually has a way to address this with HAProxy's PROXY protocol:

However, I haven't found a place for setting up the PROXY protocol support in undertow. Has anyone done this? Is there a way I should be going about it?

We should probably add support for haproxy's protocol if it has wide usage like this. It looks fairly straightforward.