diff --git a/man7/ip.7 b/man7/ip.7 index ede006cee..8a17e1254 100644 --- a/man7/ip.7 +++ b/man7/ip.7 @@ -93,12 +93,11 @@ For you may specify a valid IANA IP protocol defined in RFC\ 1700 assigned numbers. .PP -.\" FIXME ip current does an autobind in listen, but I'm not sure -.\" if that should be documented. When a process wants to receive new incoming packets or connections, it should bind a socket to a local interface address using .BR bind (2). -Only one IP socket may be bound to any given local (address, port) pair. +In this case, only one IP socket may be bound to any given local +(address, port) pair. When .B INADDR_ANY is specified in the bind call, the socket will be bound to @@ -106,10 +105,14 @@ is specified in the bind call, the socket will be bound to local interfaces. When .BR listen (2) -or +is called on an unbound socket, the socket is automatically bound +to a random free port with the local address set to +.BR INADDR_ANY . +When .BR connect (2) -are called on an unbound socket, it is automatically bound to a -random free port with the local address set to +is called on an unbound socket, the socket is automatically bound +to a random free port or an usable shared port with the local address +set to .BR INADDR_ANY . A TCP local socket address that has been bound is unavailable for