[CentOS] Configuring ipv6 reboot persistence, CentOS 5.6

[David Mehler]

Hello,
Thank you for your response. The IPV4 endpoint address in ifcfg-sit1
is in fact the tunnel endpoint and not my system's address.

The output of ifconfig sit1 does in fact show the ipv6 addresses looks
correct to me.

The output of  ip -6 route | grep -v 'dev lo' shows ipv6 traffic going
out sit1. I should probably mention I do not have any ipv6 firewall in
place.

Thanks.
Dave.



On 5/7/11, Stephen Harris <lists at spuddy.org> wrote:
> On Sat, May 07, 2011 at 04:28:45PM -0400, David Mehler wrote:
>> Testing that with a ping6 works fine. I then want it to persist across
>> reboots. So I added the following to /etc/sysconfig/network:
>>
>>        NETWORKING_IPV6=yes
>>        IPV6_DEFAULTDEV=sit1
>
> Looks good; I have the same.
>
>> and I made /etc/sysconfig/network-scripts/ifcfg-sit1
>>
>>        DEVICE=sit1
>>        BOOTPROTO=none
>>        ONBOOT=yes
>>        IPV6INIT=yes
>>        IPV6TUNNELIPV4=IPV4 Address
>>        IPV6ADDR=IPV6 Address
>
> I have
>   DEVICE=sit1
>   BOOTPROTO=none
>   ONBOOT=yes
>   IPV6INIT=yes
>   IPV6TUNNELIPV4=remote_ipv4_address
>   IPV6ADDR=my_ip6_address/netmask
>
>> Reboot the box, check sit1 and it has an ip address. Running that
>> ping6 command says the network can't be reached. I have to take the
>> interface down and rerun those above commands manually. I'd appreciate
>> any suggestions.
>
> Is the IPv4 address in the config above the IP address of the HE endpoint
> and _not_ your IP address?  (In my case I have 72.52.104.74 for tserv3)
>
> ifconfig sit1 should show something like
>   sit1      Link encap:IPv6-in-IPv4
>             inet6 addr: your_ip6/metmask Scope:Global
>             inet6 addr: fe80::link_addr/64 Scope:Link
>             UP POINTOPOINT RUNNING NOARP  MTU:1480  Metric:1
>             RX packets:756 errors:0 dropped:0 overruns:0 frame:0
>             TX packets:758 errors:0 dropped:0 overruns:0 carrier:0
>             collisions:0 txqueuelen:0
>             RX bytes:76421 (74.6 KiB)  TX bytes:88155 (86.0 KiB)
>
> Also check the output of
>   ip -6 route | grep -v 'dev lo'
>
> --
>
> rgds
> Stephen
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