Is it possible to send traffic back to same port as it was received?

Help!
1

I need to send traffic back to the same port on which load balancer receives the request.
Is it possible with haproxy or not?

Thanks…

2

Do you mean mirroing the traffic back to the client and the same TCP connection (without opening any backend server connection)? No, this cannot be done.

3

So basically,
I have 2 servers and I created an HA Proxy LB on another server.
Now traffic will come to any port on LB and I need to send the traffic back to any one of server on the same port.

4

Ah ok, yes, that is indeed possible.

Configure the port range you require on the frontend, for example:

bind :1-21,:23-65536

And on the backend, only specify the server, do not specify a destination port. Then haproxy will connect to the use the frontend port as on the frontend to connect to the server:

backend servers
 server s1 192.168.1.5
 server s2 192.168.1.6
1 Like
7

This solution worked for me, Thanks alot !