Date: Sun, 30 Jun 2013 19:48:52 -0400 From: Zaphod Beeblebrox <zbeeble@gmail.com> To: FreeBSD Net <freebsd-net@freebsd.org> Subject: Duplicate Address Detection misfire? Message-ID: <CACpH0McSM7HDeJcQ1pLcXuEZ96n=15YmCaP4YheZghBbyEgfUw@mail.gmail.com>
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I have a FreeBSD 9.1-RELEASE vmware guest running. It is using the "bridged" type of networking with VMWare. It gets it's IPv4 address from DHCP (successfully) and then fails to initialize IPv6. The relevant rc.conf is: ipv6_activate_all_interfaces="YES" ifconfig_em0_ipv6="inet6 accept_rtadv" ip6addrctl_verbose="YES" The console output says: em0: DAD detected duplicate IPv6 address fe80:2::20c:29ff:fe0a:3989: NS in/out=2/1, NA in=0 em0: DAD complete for fe80:2::20c:29ff:fe0a:3989 - duplicate found em0: manual intervention required em0: possible hardware address duplication deteted, disable IPv6 And subsequently, em0's nd6 has "IFDISABLED" in it. With wireshark, I see two ICMPv6 neighbor solicitations that are identical --- is this the problem? How do I fix this?
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