Date: Mon, 01 Jul 2013 09:18:00 +0900 (JST) From: Hiroki Sato <hrs@FreeBSD.org> To: zbeeble@gmail.com Cc: freebsd-net@FreeBSD.org Subject: Re: Duplicate Address Detection misfire? Message-ID: <20130701.091800.431052507291100682.hrs@allbsd.org> In-Reply-To: <CACpH0McSM7HDeJcQ1pLcXuEZ96n=15YmCaP4YheZghBbyEgfUw@mail.gmail.com> References: <CACpH0McSM7HDeJcQ1pLcXuEZ96n=15YmCaP4YheZghBbyEgfUw@mail.gmail.com>
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----Security_Multipart(Mon_Jul__1_09_18_00_2013_865)-- Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Zaphod Beeblebrox <zbeeble@gmail.com> wrote in <CACpH0McSM7HDeJcQ1pLcXuEZ96n=15YmCaP4YheZghBbyEgfUw@mail.gmail.com>: zb> I have a FreeBSD 9.1-RELEASE vmware guest running. It is using the zb> "bridged" type of networking with VMWare. It gets it's IPv4 address from zb> DHCP (successfully) and then fails to initialize IPv6. The relevant zb> rc.conf is: zb> zb> ipv6_activate_all_interfaces="YES" zb> ifconfig_em0_ipv6="inet6 accept_rtadv" zb> ip6addrctl_verbose="YES" zb> zb> The console output says: zb> zb> em0: DAD detected duplicate IPv6 address fe80:2::20c:29ff:fe0a:3989: NS zb> in/out=2/1, NA in=0 zb> em0: DAD complete for fe80:2::20c:29ff:fe0a:3989 - duplicate found zb> em0: manual intervention required zb> em0: possible hardware address duplication deteted, disable IPv6 zb> zb> And subsequently, em0's nd6 has "IFDISABLED" in it. zb> zb> With wireshark, I see two ICMPv6 neighbor solicitations that are identical zb> --- is this the problem? zb> zb> How do I fix this? Does your host environment have the same address on the bridged interface? -- Hiroki ----Security_Multipart(Mon_Jul__1_09_18_00_2013_865)-- Content-Type: application/pgp-signature Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.13 (FreeBSD) iEYEABECAAYFAlHQyrgACgkQTyzT2CeTzy1E3gCg30hIUA69yv4x+/tY5ScVO3EB 3cgAoKenc6fQfiwICnhR6oVkzJrZNZZ/ =624S -----END PGP SIGNATURE----- ----Security_Multipart(Mon_Jul__1_09_18_00_2013_865)----
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