[6bone] tunnel to 6bone?

[Ken Pohniman]

To provide ipv6 connectivity to 6bone, you can use the following
methods:

Method1:
Ipv6hosts---6to4router---(internet)---6to4relay---(6bone)
The router will be configured with 6to4, and advertise the 6to4 prefix
(depending on the router's public v4 address), to the v6 hosts. For the
hosts to connect to a 6to4 address (eg. 2002:...) in 6bone, the router
will perform 6to4 tunneling to the destination. However, to access a
global ipv6 address (eg. 2001:...), you'll also need to add a default v6
route on the router, pointing to the 6to4relay router (eg.
::/192.88.99.1).

Method2:
Ipv6hosts---(internet)---6to4relay---(6bone)
You can treat the MS XP host like a router, and configure 6to4 and the
necessary routing similar to method 1. Seems that with XP service pack
1, XP will automatically configure itself whenever it gets a public ipv4
address. When you do a ping6 (eg. Ping6 www.kame.net), you should be
able to get an ipv6 reply.

Regards,
Ken

  
-----Original Message-----
From: 6bone-admin@mailman.isi.edu [mailto:6bone-admin@mailman.isi.edu]
On Behalf Of Ravikanth Samprathi
Sent: Tuesday, October 08, 2002 2:24 AM
To: 6bone@mailman.isi.edu
Subject: [6bone] tunnel to 6bone?

Hi
I have a topology with a set of ipv6-only-hosts
and a set of ipv4-only-hosts as follows:

IPv6 Hosts         IPv4 Hosts
  |                       |
  |                       |
  |                       |
  +--------+-----------+
           |
           |
  IPv4/IPv6 Dual Stack Gateway
           ||
           ||
           ||
           ||
           ||
  IPv4/IPv6 Dual Stack Relay Router
           |
           |
           |
      6Bone ISP

My goal is to provide global-ipv6-connectivity to the IPv6-hosts.

Approach:
----------------
To accomplish this goal, I have configured a dual-stack-relay-router.
>From each of the dual-stack-gateways, i have configured 6to4
tunnels to the dual-stack-relay-router.  From the dual-stack-relay-
router, i intend to connect to 6Bone.
If the IPv4 address of dual-stack-gateway is 1.2.3.4, the IPv6
address of the gateway is 2002:0102:0304::1/64, and the prefix delegated
to the IPv6-hosts within that home would be 2002:0102:0304:0001 (64
bits).
If the IPv4 address of dual-stack-relay-router is 5.6.7.8, the IPv6
address of the relay-router is 2002:0506:0708::1/64.

My questions to you:
-------------------------------
On this front, can you please let me know if my approach is right?
With this kind of configuration to the IPv6 hosts, will I
be able to provide global connectivity to the ipv6-hosts?

Is 6to4 tunnels the right approach to use to connect the gateways to
relay-router?  And if so, how should i configure the ipv6-routing-
tables in the gateways to forward all the ipv6 traffic to the
relay-router?

How should i configure the relay-router to connect to 6bone?  Do we
use native-ipv6 or 6to4-tunnel?

Is there a better approach to solve this problem?

Since i am new to 6bone, i would greatly appreciate any help or
pointers.
With best rgds.
Ravi