Add the comment of the previous commit to the source file directly.

Requested by: ru
2004-04-23 16:57:43 +00:00 · 2004-04-23 16:57:43 +00:00 · 5b2a80f166
commit 5b2a80f166
parent fe93d4f02e
1 changed files with 5 additions and 1 deletions
--- a/sys/net/if_gre.c
+++ b/sys/net/if_gre.c
@ -385,7 +385,11 @@ gre_output(struct ifnet *ifp, struct mbuf *m, struct sockaddr *dst,

 	ifp->if_opackets++;
 	ifp->if_obytes += m->m_pkthdr.len;
-	/* send it off */
+	/*
+	 * Send it off and with IP_FORWARD flag to prevent it from
+	 * overwriting the ip_id again.  ip_id is already set to the
+	 * ip_id of the encapsulated packet.
+	 */
 	error = ip_output(m, NULL, &sc->route, IP_FORWARDING,
 	    (struct ip_moptions *)NULL, (struct inpcb *)NULL);
  end: