From 8976fc6f8951a5d18f301132b051ced7bf83899d Mon Sep 17 00:00:00 2001
From: ru <ru@FreeBSD.org>
Date: Mon, 24 Jan 2000 08:53:39 +0000
Subject: Notify user processes about interface's MTU change.

Reviewed by:	wollman, freebsd-net
---
 sys/net/if.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'sys/net/if.c')

diff --git a/sys/net/if.c b/sys/net/if.c
index 1ae6f06..a2834ad 100644
--- a/sys/net/if.c
+++ b/sys/net/if.c
@@ -848,8 +848,10 @@ ifioctl(so, cmd, data, p)
 		if (ifr->ifr_mtu < IF_MINMTU || ifr->ifr_mtu > IF_MAXMTU)
 			return (EINVAL);
 		error = (*ifp->if_ioctl)(ifp, cmd, data);
-		if (error == 0)
+		if (error == 0) {
 			getmicrotime(&ifp->if_lastchange);
+			rt_ifmsg(ifp);
+		}
 		/*
 		 * If the link MTU changed, do network layer specific procedure.
 		 */
-- 
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