RE: ip6-localhost (::1) 2990.86 ms !H -> Why ?

From: Pekka Savola (
Date: Sun Nov 18 2001 - 14:56:17 EST

On Sun, 18 Nov 2001, Pekka Savola wrote:
> On Sun, 18 Nov 2001, NDSoftware wrote:
> Ok, these pings look sane.

The problem here was very probably that:

1) router (2.2.x kernel) had been configured with:


2) woody (2.4.x) kernel had been configured with: [didn't work]

 which for 2.4.x, x > 4 or so, effectively means:

3) potato (2.2.18) kernel had been configured with:

CONFIG_IPV6_EUI64 (possibly)

So, in effect the router was only using provider-based addresses, and
PB addressing had been removed from Woody as obsolete. Potato was still
working because the support appears to have not been removed yet.

The problem could be noted by checking which solicited-node multicast
addresses had been joined (netstat -g).

Rebooting 'router' to a kernel with EUI64 support fixed the problem.

Pekka Savola                 "Tell me of difficulties surmounted,
Netcore Oy                   not those you stumble over and fall"
Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords

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This archive was generated by hypermail 2b29 : Fri Nov 23 2001 - 21:00:38 EST