Skip site navigation (1)Skip section navigation (2)
Date:      Sun, 30 Jun 2013 21:39:05 -0500
From:      Kevin Day <kevin@your.org>
To:        Zaphod Beeblebrox <zbeeble@gmail.com>
Cc:        FreeBSD Net <freebsd-net@freebsd.org>
Subject:   Re: Duplicate Address Detection misfire?
Message-ID:  <06BA4BD5-BE4E-4184-AFBB-D7FD4B2597D9@your.org>
In-Reply-To: <CACpH0McSM7HDeJcQ1pLcXuEZ96n=15YmCaP4YheZghBbyEgfUw@mail.gmail.com>
References:  <CACpH0McSM7HDeJcQ1pLcXuEZ96n=15YmCaP4YheZghBbyEgfUw@mail.gmail.com>

next in thread | previous in thread | raw e-mail | index | archive | help

--Apple-Mail=_43288E98-F252-4279-A13E-3BEBA8FDC34B
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain;
	charset=us-ascii


On Jun 30, 2013, at 6:48 PM, Zaphod Beeblebrox <zbeeble@gmail.com> =
wrote:

> 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:
>=20
> ipv6_activate_all_interfaces=3D"YES"
> ifconfig_em0_ipv6=3D"inet6 accept_rtadv"
> ip6addrctl_verbose=3D"YES"
>=20
> The console output says:
>=20
> em0: DAD detected duplicate IPv6 address fe80:2::20c:29ff:fe0a:3989: =
NS
> in/out=3D2/1, NA in=3D0
> em0: DAD complete for fe80:2::20c:29ff:fe0a:3989 - duplicate found
> em0: manual intervention required
> em0: possible hardware address duplication deteted, disable IPv6
>=20
> And subsequently, em0's nd6 has "IFDISABLED" in it.
>=20
> With wireshark, I see two ICMPv6 neighbor solicitations that are =
identical
> --- is this the problem?
>=20
> How do I fix this?

Did you copy this VM and have both copies running at once? If so, it =
assigned the same MAC address to each VM.=20

VMware is suppose to detect this and ask if you "copied" or "moved" the =
VM, and if you say "copied" it will randomly assign a new MAC to the VM. =
If this didn't happen or if you said "moved" when you actually copied =
it, just go in and delete/re-create the network interface in the VM's =
settings to create a new MAC for it.

If that's not the issue, we'd probably need more details about your =
configuration.



--Apple-Mail=_43288E98-F252-4279-A13E-3BEBA8FDC34B
Content-Disposition: attachment;
	filename=smime.p7s
Content-Type: application/pkcs7-signature;
	name=smime.p7s
Content-Transfer-Encoding: base64
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--Apple-Mail=_43288E98-F252-4279-A13E-3BEBA8FDC34B--



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?06BA4BD5-BE4E-4184-AFBB-D7FD4B2597D9>