Re: [Hampshire] Anyone know much about IPv6 tunnels?

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Author: Vic
Date:  
To: hampshire
Subject: Re: [Hampshire] Anyone know much about IPv6 tunnels?

> You can run "aiccu test" and it might show you where the problem is.


Not when you know as little about IPv6 as I do, you can't :-)

> ip -6 addr


[root@OldEmpire ~]# ip -6 addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qlen 1000
    inet6 fe80::204:23ff:fe65:9818/64 scope link
       valid_lft forever preferred_lft forever
13: sixxs: <POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1280
    inet6 2a01:348:6:417::2/64 scope global
       valid_lft forever preferred_lft forever
    inet6 fe80::5b54:306b/128 scope link
       valid_lft forever preferred_lft forever


> ip -6 ro


[root@OldEmpire ~]# ip -6 ro
2a01:348:6:417::/64 via :: dev sixxs proto kernel metric 256 mtu 1280
advmss 1220 hoplimit 0
fe80::/64 via :: dev sixxs proto kernel metric 256 mtu 1280 advmss 1220
hoplimit 0
fe80::/64 dev eth1 proto kernel metric 256 mtu 1500 advmss 1440 hoplimit 0
default via 2a01:348:6:417::1 dev sixxs metric 1024 mtu 1280 advmss 1220
hoplimit 0

> Can you ping it?


I can't ping the PoP - but the unreachable message when I ping Google
seems to come from the PoP. At this point, I have to recognise the limit
of my knowledge in this area...

> cl-1048.lon-02.gb.sixxs.net is your end of the tunnel; its IP ends
> in ::2.


Ah, OK. I didn't realise that. Given the FWDN in question, I thought that
was the far end. OK, looks like it's my cock-up...

> The sixxs POP's end will be gw-1048.lon-02.gb.sixxs.net and
> its IP will end in ::1.


Gotcha. Thanks for that.

Back to reading...

Vic.