tcp - Ephemeral port numbers: Same server port after establishment? -

if have webserver running @ port 80 , connects client using randomly assigned port x, server knows port reply to. however, @ time on, communication server continue on port 80 on (assigned file descriptor socket-pair ip:x), or server delegate further communication onto randomly assigned port of itself; y?

so asking is: when server replies -does reply source port of 80 further communication?

if have webserver running @ port 80 , connects client using randomly assigned port x

at client end.

then server knows on port reply.

the server replies via same connection received request on. happens below tcp. isn't 'knowledge' of server application.

however, @ time on, communication server continue on port 80 on

yes.

(assigned file descriptor socket-pair ip:x)

to socket quad {local-ip, local-port, remote-ip, remote port}.

or server delegate further communication onto randomly assigned port of itself;

no.

so asking is: when server replies -does reply source port of 80 further communication?

yes.