Hi, Wang.
"ipv6 nd ra interval 20" is the problem.
That configuration will invoke the new RA before the prefix lifetime is expired.
Could you check your tcpdump?
I guess that your host received the RA before 35 seconds passed.
Please use longer interval, for example "ipv6 nd ra interval 60".
Thanks,
On Thu, 09 Oct 2008 10:29:35 +0800
wang_jiabo <jiabwang@redhat.com> wrote:
> Hello, all:
> when I test 1.3.C, I setup : ipv6 nd ra interval 20
> ipv6 nd ra lifetime 30 in Router1.
> but when I ping6 from host2 to host1, pass 35s , I can also ping6 from
> host2 to host1, and get Echo reply.
> could you tell me why?. that linux or freebsd need configure some
> parameters?
> Thanks
>
> Wang Jiabo
>
>
--
Yukiyo Akisada <akisada@tahi.org>