ike: Use the original port when remote resolves to %any

When reestablishing the IKE_SA we should still use the original port
when right resolves to %any as some implementations might not like
initial IKE messages on port 4500 (especially for IKEv1).

src/libcharon/sa/ike_sa.c

@@ -1240,7 +1240,9 @@ static void resolve_hosts(private_ike_sa_t *this)
 			set_other_host(this, host);
 		}
 		else
-		{
+		{	/* reuse the original port as some implementations might not like
+			 * initial IKE messages on other ports */
+			this->other_host->set_port(this->other_host, host->get_port(host));
 			host->destroy(host);
 		}
 	}