Hi

I am trying to setup nginx as a UDP load balancer using
ngx_stream_core_module to load balance udp traffic across backend
instances.

However, i see that for every incoming UDP packet from a client, nginx uses
a different source port when sending the packet to the backend instance for
the same UDP connection. That is throwing the backend off. I dont want to
use nginx as a transparent proxy to avoid setting up routes (since i am
deploying on Google Cloud). Is there a way nginx can load balancer based on
the UDP connection?

I am using the following config:

upstream test_upstreams {

server 104.199.242.111:6121;

server 104.199.242.111:6122;

hash $remote_addr consistent;

}


server {

listen 443 udp;

preread_buffer_size 1500;

proxy_pass test_upstreams;

proxy_timeout 10s;

proxy_responses 1;

access_log logs/quic_access.log quic;

error_log logs/udp.log;

}


Thanks
Rajesh
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