Date: Wed, 31 Oct 2012 14:59:48 +0600 From: "tsaregorodtsev.denis@itmh.ru" <tsaregorodtsev.denis@itmh.ru> To: freebsd-net@freebsd.org Subject: IPv6 aliases don't work on carp interface Message-ID: <5090E884.4090901@itmh.ru>
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Hi, I've run into a problem while adding IPv6 aliases on carp interface on FreeBSD 8.1. All IPv6 aliases on carp interface are unreachable from other devices but the first IPv6 on carp interface works well. # ifconfig em0: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM> ether 00:50:56:ad:00:5f inet 172.16.249 netmask 0xffffff00 broadcast 255.255.255.224 inet6 2001:db8:af:ff01:1:be60:80:700 prefixlen 64 nd6 options=3<PERFORMNUD,ACCEPT_RTADV> media: Ethernet autoselect (1000baseT <full-duplex>) status: active ipfw0: flags=8801<UP,SIMPLEX,MULTICAST> metric 0 mtu 65536 lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 options=3<RXCSUM,TXCSUM> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3 inet6 ::1 prefixlen 128 inet 127.0.0.1 netmask 0xff000000 nd6 options=3<PERFORMNUD,ACCEPT_RTADV> carp0: flags=49<UP,LOOPBACK,RUNNING> metric 0 mtu 1500 inet6 2001:db8:af:ff01:1:be60:80:70f prefixlen 128 inet6 2001:db8:af:ff01:1:be60:80:70e prefixlen 128 nd6 options=3<PERFORMNUD,ACCEPT_RTADV> carp: MASTER vhid 250 advbase 1 advskew 0 # ping6 2001:db8:af:ff01:1:be60:80:70f PING 2001:db8:af:ff01:1:be60:80:70f(2001:db8:af:ff01:1:be60:80:70f) 56 data bytes 64 bytes from 2001:db8:af:ff01:1:be60:80:70f: icmp_seq=1 ttl=59 time=0.793 ms 64 bytes from 2001:db8:af:ff01:1:be60:80:70f: icmp_seq=2 ttl=59 time=0.837 ms # ping6 2001:db8:af:ff01:1:be60:80:70e PING 2001:db8:af:ff01:1:be60:80:70e(2001:db8:af:ff01:1:be60:80:70e) 56 data bytes From 2001:db8:af:ff00::1 icmp_seq=1 Destination unreachable: Address unreachable From 2001:db8:af:ff00::1 icmp_seq=4 Destination unreachable: Address unreachable If I delete both IPs and add inet6 2001:db8:af:ff01:1:be60:80:70e before inet6 2001:db8:af:ff01:1:be60:80:70f then 2001:db8:af:ff01:1:be60:80:70e does work and 2001:db8:af:ff01:1:be60:80:70f does not. I googled this issue and found a patchhttp://lists.freebsd.org/pipermail/freebsd-net/2011-August/029619.html I've tried to apply it but the problem still exists. I've tested this issue on FreeBSD9.1 RC2 as well and there was the same problem. Best Regards, Tsaregorodtsev Denis
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