Hi,
>>>>> On Fri, 15 Mar 2013 22:54:42 +0100 (CET)
>>>>> "M. Schulte" <[email protected]> said:
m-freebsd> I fear I cannot answer all of these questions. I don't have any IPv6
m-freebsd> addresses configured in rc.conf. Also, I am not using dhcp. Basically
m-freebsd> I only have IPv4 networking configured with static addresses --
m-freebsd> neither have I actively _disabled_ IPv6.
m-freebsd> This is my ifconfig output:
m-freebsd> re0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
m-freebsd>
options=8009b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,LINKSTATE>
m-freebsd> ether 00:16:36:74:20:76
m-freebsd> inet XXX.XXX.XXX.XXX netmask 0xfffffff0 broadcast
XXX.XXX.XXX.XXX
m-freebsd> inet6 fe80::216:36ff:fe74:2076%re0 prefixlen 64 scopeid 0x2
m-freebsd> nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
m-freebsd> media: Ethernet autoselect (100baseTX <full-duplex>)
m-freebsd> status: active
It seems IPv6 is disabled by IFDISABLED nd6 option. Please try the
attached patch to ignore it.
Sincerely,
Index: contrib/ntp/ntpd/ntp_io.c
diff -u -p contrib/ntp/ntpd/ntp_io.c.orig contrib/ntp/ntpd/ntp_io.c
--- contrib/ntp/ntpd/ntp_io.c.orig 2012-10-01 02:28:37.157635135 +0900
+++ contrib/ntp/ntpd/ntp_io.c 2013-03-16 17:30:51.384215167 +0900
@@ -69,6 +69,7 @@
#include <netinet/in.h>
#include <net/if_var.h>
#include <netinet/in_var.h>
+#include <netinet6/nd6.h>
#endif /* !INCLUDE_IPV6_SUPPORT */
extern int listen_to_virtual_ips;
@@ -1202,6 +1203,28 @@ is_anycast(struct sockaddr *sa, char *na
#endif /* !SIOCGIFAFLAG_IN6 || !IN6_IFF_ANYCAST */
return ISC_FALSE;
}
+
+static isc_boolean_t
+is_ifdisabled(char *name)
+{
+#if defined(SIOCGIFINFO_IN6) && defined(ND6_IFF_IFDISABLED)
+ struct in6_ndireq nd;
+ int fd;
+
+ if ((fd = socket(AF_INET6, SOCK_DGRAM, 0)) < 0)
+ return ISC_FALSE;
+ memset(&nd, 0, sizeof(nd));
+ strlcpy(nd.ifname, name, sizeof(nd.ifname));
+ if (ioctl(fd, SIOCGIFINFO_IN6, &nd) < 0) {
+ close(fd);
+ return ISC_FALSE;
+ }
+ close(fd);
+ if ((nd.ndi.flags & ND6_IFF_IFDISABLED) != 0)
+ return ISC_TRUE;
+#endif /* !SIOCGIFAFLAG_IN6 || !IN6_IFF_ANYCAST */
+ return ISC_FALSE;
+}
#endif /* !INCLUDE_IPV6_SUPPORT */
/*
@@ -1335,6 +1358,16 @@ update_interfaces(
continue;
}
+#ifdef INCLUDE_IPV6_SUPPORT
+ if (interface.sin.ss_family == AF_INET6 &&
+ is_ifdisabled(interface.name)) {
+ DPRINTF(4,
+ ("skipping interface %s (%s) - IFDISABLED\n",
+ interface.name, stoa(&interface.sin)));
+ continue;
+ }
+#endif /* !INCLUDE_IPV6_SUPPORT */
+
/*
* skip any interfaces UP and bound to a wildcard
* address - some dhcp clients produce that in the
--
Hajimu UMEMOTO
[email protected] ume@{,jp.}FreeBSD.org
http://www.mahoroba.org/~ume/
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