On Tue, Jul 29, 2008 at 09:16:21PM +0000, Christian Weisgerber wrote:
| dermiste <[EMAIL PROTECTED]> wrote:
|
| > 1) from curry, I try to ping6 debruijn, but it says host unreachable
| > 2) from debruijn, I try to ping6 curry, and it works.
| > 3) from curry, I try to ping6 debruijn, and it works.
|
| This is very typical of multicast reception failing on one box
| (debruijn in your case).
|
| At step 1, curry sends a neighor solicitation message by multicast,
| so it can map the IPv6 address to the link layer address, but
| debruijn doesn't see the packet and fails to respond. At step 2,
| everything works in the opposite direction, and debruijn caches
| curry's address and proceeds to use it in step 3.
|
| Link-local v6 addresses also work fine because they don't involve
| neighbor discovery.
Uhm, why ?
23:37:41.664994 00:0c:29:e5:f9:24 33:33:ff:ff:4d:0d 86dd 86:
fe80::20c:29ff:fee5:f924 > ff02::1:ffff:4d0d: icmp6: neighbor sol: who has
fe80::20c:29ff:feff:4d0d(src lladdr: 00:0c:29:e5:f9:24) (len 32, hlim 255)
How would you determine the linklayer address of your neighbour without
neighbor discovery ?
Cheers,
Paul 'WEiRD' de Weerd
--
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