Hi,

>>>>> On Wed, 7 Jan 2015 16:56:58 -0800
>>>>> hiren panchasara <hiren.panchas...@gmail.com> said:

hiren> I see this message on july 2014 time-frame -CURRENT. I tried to
hiren> disable IPv6 in rc.conf via ipv6_activate_all_interfaces="NO" without
hiren> success.

hiren> Has this been fixed? Or any workarounds?

Perhaps, your interface has an IPv6 link-local address which is
tentative state.
Please try the attached patch.  This patch ignores a tentative
address.

Sincerely,

Index: contrib/ntp/ntpd/ntp_io.c
===================================================================
--- contrib/ntp/ntpd/ntp_io.c	(revision 276829)
+++ contrib/ntp/ntpd/ntp_io.c	(working copy)
@@ -1176,12 +1176,13 @@
 
 #ifdef INCLUDE_IPV6_SUPPORT
 static isc_boolean_t
-is_anycast(struct sockaddr *sa, char *name)
+is_not_bindable(struct sockaddr *sa, char *name)
 {
-#if defined(SIOCGIFAFLAG_IN6) && defined(IN6_IFF_ANYCAST)
+#if defined(SIOCGIFAFLAG_IN6) && \
+	(defined(IN6_IFF_ANYCAST) || defined(IN6_IFF_NOTREADY))
 	struct in6_ifreq ifr6;
 	int fd;
-	u_int32_t flags6;
+	u_int32_t flags6, exclude = 0;
 
 	if (sa->sa_family != AF_INET6)
 		return ISC_FALSE;
@@ -1197,9 +1198,15 @@
 	}
 	close(fd);
 	flags6 = ifr6.ifr_ifru.ifru_flags6;
-	if ((flags6 & IN6_IFF_ANYCAST) != 0)
+#if defined(IN6_IFF_ANYCAST)
+	exclude |= IN6_IFF_ANYCAST;
+#endif
+#if defined(IN6_IFF_NOTREADY)
+	exclude |= IN6_IFF_NOTREADY;
+#endif
+	if ((flags6 & exclude) != 0)
 		return ISC_TRUE;
-#endif /* !SIOCGIFAFLAG_IN6 || !IN6_IFF_ANYCAST */
+#endif /* !SIOCGIFAFLAG_IN6 || !(IN6_IFF_ANYCAST && IN6_IFF_NOTREADY) */
 	return ISC_FALSE;
 }
 #endif /* !INCLUDE_IPV6_SUPPORT */
@@ -1344,7 +1351,7 @@
 			continue;
 
 #ifdef INCLUDE_IPV6_SUPPORT
-		if (is_anycast((struct sockaddr *)&interface.sin, isc_if.name))
+		if (is_not_bindable((struct sockaddr *)&interface.sin, isc_if.name))
 			continue;
 #endif /* !INCLUDE_IPV6_SUPPORT */
 
--
Hajimu UMEMOTO
u...@mahoroba.org  ume@{,jp.}FreeBSD.org
http://www.mahoroba.org/~ume/
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