6bone connection request

[Pekka Savola]

On Thu, 17 May 2001, Grigory Kljuchnikov wrote:
> I try to set connection to 6Bone. I've FreeBSD 4.1 with interface gif0
> and static routing (inet6 default gateway 3FFE:28FF:5:FFF::1).
> The remote end point have Cisco. It have configured intreface Tunnel1.
> But we don't have connection, ping6 don't say anything from my place
> and from remote place.
>
> May be somebody can help me?

Check that you aren't filtering protocol 41 somewhere along the way.

This is probably the issue, as Cisco has sent packets but they've never
arrived to you (or so I gather as you're running tcpdump on gif0 but
probably aren't seeing anything).



I'm connecting FreeBSD 4.3 to Cisco using /126 too.  The configuration is
otherwise the same, except there I haven't specified the remote P-t-P
address in the interface configuration as you have.  With you it would be:

instead of:
> [grn@motor grn]$ ifconfig -a
> gif0: flags=8011<UP,POINTOPOINT,MULTICAST> mtu 1280
>         inet6 3ffe:28ff:5:fff::2 --> 3ffe:28ff:5:fff::1 prefixlen 126
>         inet6 fe80::260:52ff:fe05:e8cd%gif0 --> :: prefixlen 64 scopeid 0x4

 gif0: flags=8011<UP,POINTOPOINT,MULTICAST> mtu 1280
         inet6 3ffe:28ff:5:fff::2 --> :: prefixlen 126
         inet6 fe80::260:52ff:fe05:e8cd%gif0 --> :: prefixlen 64 scopeid 0x4

and instead of:
> [grn@motor grn]$ gifconfig -a
> gif0: flags=8111<UP,POINTOPOINT,PROMISC,MULTICAST> mtu 1280
>         inet6 3ffe:28ff:5:fff::2 --> 3ffe:28ff:5:fff::1  prefixlen 126
>         inet6 fe80::260:52ff:fe05:e8cd%gif0 --> ::  prefixlen 64
>         physical address inet 194.67.37.210 --> 193.232.112.199

 gif0: flags=8111<UP,POINTOPOINT,PROMISC,MULTICAST> mtu 1280
         inet6 3ffe:28ff:5:fff::2 --> ::  prefixlen 126
         inet6 fe80::260:52ff:fe05:e8cd%gif0 --> ::  prefixlen 64
         physical address inet 194.67.37.210 --> 193.232.112.199

-- 
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