From b706c03da04f075acd307bea96313bbabceddf04 Mon Sep 17 00:00:00 2001
From: Hajimu UMEMOTO <ume@FreeBSD.org>
Date: Sat, 5 Apr 2003 10:10:33 +0000
Subject: [PATCH] When session is over, IPv6 default route to tun should be
 removed, too.

MFC after:	1 week
---
 usr.sbin/ppp/ncpaddr.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/usr.sbin/ppp/ncpaddr.c b/usr.sbin/ppp/ncpaddr.c
index 1f84f922fdff..ea491f16f878 100644
--- a/usr.sbin/ppp/ncpaddr.c
+++ b/usr.sbin/ppp/ncpaddr.c
@@ -725,7 +725,10 @@ ncprange_setsa(struct ncprange *range, const struct sockaddr *host,
   case AF_INET6:
     range->ncprange_family = AF_INET6;
     range->ncprange_ip6addr = host6->sin6_addr;
-    range->ncprange_ip6width = mask6 ? mask62bits(&mask6->sin6_addr) : 128;
+    if (IN6_IS_ADDR_UNSPECIFIED(&host6->sin6_addr))
+      range->ncprange_ip6width = 0;
+    else
+      range->ncprange_ip6width = mask6 ? mask62bits(&mask6->sin6_addr) : 128;
     break;
 #endif