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Date:      Thu, 08 Aug 2002 16:18:21 -0700
From:      Lars Eggert <larse@ISI.EDU>
To:        freebsd-net@freebsd.org, snap-users@kame.net
Subject:   IPv6, hostap and bridging
Message-ID:  <3D52FC3D.9010904@isi.edu>
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[-- Attachment #1 --]
Hi,

I'm configuring a hostap-based FreeBSD-4.6-RELEASE access point, 
bridging together wi0 and sis1 interfaces (using Luigi's bridge code, 
not netgraph). IPv4 connectivity works great, kudos all around!

IPv6 is a different matter. Router solicitation works, i.e. the AP (it's 
also a real router) announces itself and hands out IPv6 addresses over 
the wireless link.

However, connectivity is broken. Using the canonical "ping6 
www.kame.net" on the client makes it send out neighbor solicitations for 
the router address over the wireless link, and they arrive on wi0 on the 
router/AP:

16:15:56.407151 3ffe:825:27:0:202:2dff:fe5e:870c > ff02::1:ffc0:3edd: 
icmp6: neighbor sol: who has fe80::200:24ff:fec0:3edd

but the router/AP doesn't generate replies to the client, it bridges the 
message and sends them out via sis1:

16:15:56.407238 3ffe:825:27:0:202:2dff:fe5e:870c > ff02::1:ffc0:3edd: 
icmp6: neighbor sol: who has fe80::200:24ff:fec0:3edd

However, the router *is* fe80::200:24ff:fec0:3edd%sis1! Any clues on how 
to make it do the right thing?

Thanks,
Lars
-- 
Lars Eggert <larse@isi.edu>           USC Information Sciences Institute

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