search for: rfc4007

...must be set to specify which interface should be used with the link-local address. There does not appear to be any handling for this in server_listen() function. I believe the ListenAddress should allow a link-local with %<zone_id> allowing the interface name or index to be specified as per RFC4007. The specified interface needs to then result in a sin6_scope_id assignment prior to the bind() in server_listen(). (Since the inclusion of an interface name would result in longer strings, the code needs to be checked that longer addresses with ListenAddress will be accepted.) The if_nametoinde...