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From: dikshie <dikshie@gmail.com>
Date: Tue, 11 Oct 2011 22:16:58 +0900
Message-ID: <CAA1TSu_2t6TYEYD58OgrCUA3knMTc_Y1EySrVhvU4f-KFHVgYA@mail.gmail.com>
To: freebsd-net@freebsd.org
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Subject: strange ipv6 on 9.0-BETA3
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X-List-Received-Date: Tue, 11 Oct 2011 13:47:31 -0000

Hi,
My host has two interfaces em0 and em1.
Both interfaces are connected to different switches.
I have been deleted all ipv6 entries in /etc/rc.conf and rebooted the host.

why the ifconfig shows ipv6 address on em1 like this:
---------------
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
	ether 00:30:48:30:39:d8
	inet 202.249.25.27 netmask 0xffffffe0 broadcast 202.249.25.31
	inet6 fe80::230:48ff:fe30:39d8%em0 prefixlen 64 scopeid 0x1
	nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
	media: Ethernet autoselect (1000baseT <full-duplex>)
	status: active
em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
	options=209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC>
	ether 00:30:48:30:39:d9
	inet6 2001:d30:101:5:230:48ff:fe30:39d9 prefixlen 64
	inet6 fe80::230:48ff:fe30:39d9%em1 prefixlen 64 scopeid 0x2
	nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
	media: Ethernet autoselect (100baseTX <full-duplex>)
	status: active
-----------------
sysctl shows:
net.inet6.ip6.accept_rtadv: 0
-----------------
how come em1 has ipv6 address?
it is very strange. any idea, how to debug/fix this?


Sincerely,
-- 
-dikshie-