is it possible for a host to maintain a tcp connection with two hosts with the same IP?

[esolvepolito]

I have two hosts A and B and a host(called client here) C C will establish a tcp connection with A, and send http requests to A then A will relay the HTTP requests to B (the relaying may be seconds of delay) and B will spoof its IP address as the IP of A and send http response to C

I know there is sequnce number inconsistency problem, but is it possible to trick the TCP protocol to make the connection viable? thanks!

 

[esolvepolito]

maybe the original post is not clear enough, I reword it as below:

I have two hosts A and B and a host(called client here) C C will establish a tcp connection with A, and send http requests to A but I dont want A to respond C, instead I want B to respond C

So A will relay the HTTP requests to B (the relaying may be seconds of delay) and then B will send http response to C But I hope C won't know the IP of B, so B will spoof its IP address as the IP address of A and I hope C regard the packets from B belongs to the tcp connection between it and A

I know there is sequnce number inconsistency problem, but is it possible to trick the TCP protocol to make the above viable? thanks!

 

[VinceWhirlwind]

What you need is a reverse PRoxy at A.

 

[esolvepolito]

can you make it a bit clearer?
how to use reverse proxy for this?
thanks

 

[VinceWhirlwind]

Have a look at how an F5 works - the F5 pretends to be the web server(s) and the Client only ever sees the F5 IP address.