WTP sends now CAPWAP_LOCAL_IP_ADDRESS in Join Req

FossilOrigin-Name: 13f087705dd79d06c77982797579f0078d3f863117a3a3320540876ddc9023ef

src/wtp/join.c

@@ -111,7 +111,10 @@ int run_join_d(struct sockaddr *sa)
 	conn->sock = sockfd;
 	sock_copyaddr(&conn->addr, sa);
 
-/*	rc = connect(sockfd, (struct sockaddr *) sa,
+
+	/* we call connect to bind this socket to a local IP address,
+	 * which we can later obtain by getsockname */
+	rc = connect(sockfd, (struct sockaddr *) sa,
 		     sock_addrlen((struct sockaddr *) sa));
 
 	if (rc < 0) {
@@ -120,7 +123,7 @@ int run_join_d(struct sockaddr *sa)
 		close(sockfd);
 		return -1;
 	}
-*/
+
 
 	cw_dbg(DBG_DTLS, "Establishing DTLS session with %s", sock_addr2str(sa));