Merged revisions 197562 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r197562 | eliel | 2009-05-28 11:21:32 -0400 (Thu, 28 May 2009) | 13 lines
  
  Use the address we already know when reloading a peer with nat=yes.
  
  If we already have an address for a peer, and we are reloading the sip
  configuration, try to use that address to contact the peer, instead of
  getting it from the Contact.
  
  (closes issue #15194)
  Reported by: ibc
  Patches:
        sip.patch uploaded by eliel (license 64)
        Tested by: manwe
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@197621 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -23992,10 +23992,13 @@ static struct sip_peer *build_peer(const char *name, struct ast_variable *v, str
 		 * address listed on the entry (or if it's 'dynamic'), then we need to
 		 * parse the entry to obtain the IP address, so a dynamic host can be
 		 * contacted immediately after reload (as opposed to waiting for it to
-		 * register once again). */
+		 * register once again). But if we have an address for this peer and NAT was
+		 * specified, use that address instead. */
 		/* XXX May need to revisit the final argument; does the realtime DB store whether
 		 * the original contact was over TLS or not? XXX */
-		__set_address_from_contact(fullcontact->str, &peer->addr, 0);
+		if (!ast_test_flag(&peer->flags[0], SIP_NAT_ROUTE) || !peer->addr.sin_addr.s_addr) {
+			__set_address_from_contact(fullcontact->str, &peer->addr, 0);
+		}
 	}
 	if (srvlookup && peer->dnsmgr == NULL) {