Re: SO_REUSEADDR not allowing server and client to use same port

[Phil Oester <kernel@linuxace.com>]

On Thu, Feb 28, 2008 at 12:15:06PM -0600, Nebojsa Miljanovic wrote:
> Hello all,
> I have seen similar complaints about this issue before in the list archive, but
> I have not seen any resolution. So, I am posting the question again in hope of
> getting some replies.
> 
> Currently, Linux does not allow reuse of same local port for both TCP server and
> TCP client. I understand that there may be a need to prevent two servers from
> binding to the same local port, but having 1 server and 1 outgoing client use it
> should be allowed. Other Unix like operating systems do allow it. Further more,
> Linux SCTP socket API allows for this to happen. And, I can't imagine why this
> restriction would exists for TCP and not for SCTP.

You'd likely get better response by posting this on the netdev list.

Phil