Hi Jaze
On 16 April 2013 09:52, Jaze Lee <jazeltq at gmail.com> wrote:
> hello,
> the topology is like this:
>
> centos v0:eth1 <------> centos v0: eth2
> fc00:2:3:4::1 fc00:2:3::4
>
> i turned the packet forwarding
>
If you are talking about forwarding on Centos V0, forwarding will have no
effect here. You appear to be trying to ping eth1 from a box somewhere on
eth2's network.
This is still classed as an input to V0 and will be handled by the INPUT
chain.
>
> ping6 -i eth2 fc00:2:3:4::1
> the output is
>
> PING fc00:2:3:4::1(fc00:2:3:4::1) from fc00:2:3::5 eth2: 56 data bytes
> >From fc00:2:3::4 icmp_seq=1 Destination unreachable: Administratively
> prohibited
> >From fc00:2:3::4 icmp_seq=2 Destination unreachable: Administratively
> prohibited
> >From fc00:2:3::4 icmp_seq=3 Destination unreachable: Administratively
> prohibited
> >From fc00:2:3::4 icmp_seq=4 Destination unreachable: Administratively
> prohibited
>
Administratively prohibited looks like a firewall issue.
Check your IPv6 firewall settings on V0
>
> why the box do not forwarding icmp packets to eth2?
> and how to set forwarding rules on centos 6.3?
> Thanks
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