Hi,
On Fedora 7 (kernel 2.6.21-1.3228.fc7, based on 2.6.21.5), my
zd1211rw_mac80211 WLAN USB stick and multicast/v6 no longer works.
On Fedora 6 (kernel 2.6.20, no mac80211) it was OK.
I get "wlan0: duplicate address detected!" on dmesg when the kernel is
trying to autoconfigure a global address.
I suppose this is caused by the IPv6 stack seeing my own ICMPv6
neighbor solicitation and thinking it was originated by someone else:
08:46:21.762807 00:02:72:5b:dc:28 > 33:33:ff:5b:dc:28, ethertype IPv6 (0x86dd),
length 78: (hlim 255, next-header: ICMPv6 (58), length: 24) :: >
ff02::1:ff5b:dc28: [icmp6 sum ok] ICMP6, neighbor solicitation, length 24, who has
2001:708:10:90:202:72ff:fe5b:dc28
Strangely, the same error isn't printed with the link-local address
which uses the same EUI-64.
z1211rw Wiki seems to imply that this might be an issue in generic
mac80211 code:
http://www.linuxwireless.org/en/users/Drivers/zd1211rw/mac80211Issues
It'd be nice to get this fixed. Or has it already been?
--
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
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