Going dual-stack, how do apps behave and what to do as an operator (Was: Apple Airport Extreme IPv6 problems?)

Sun Sep 16 15:55:04 UTC 2007

On 16-sep-2007, at 16:46, <michael.dillon at bt.com>  
<michael.dillon at bt.com> wrote:

>>  - setup a 6to4 relay + route 192.88.99.1 + 2002::/16

> How?

Listing 11-7. A Cisco 6to4-to-IPv6 Gateway Configuration
!
interface Loopback2002
  ip address 192.88.99.1 255.255.255.255
!
interface Tunnel2002
  ipv6 enable
  ipv6 mtu 1280
  tunnel source 192.88.99.1
  tunnel mode ipv6ip 6to4
!

Listing 11-8. A Private 6to4 Gateway in the IPv6-to-6to4 Direction
!
interface Tunnel2002
  ipv6 address 2002:DFE0:E1E2::/16
  ipv6 mtu 1280
  tunnel source 223.224.225.226
  tunnel mode ipv6ip 6to4
!

Assuming you have already configured your normal IPv6 connectivity  
(you havent!? http://www.bgpexpert.com/presentations/ 
ipv6_tutorial.pdf ). Don't forget to sprinkle some "redistribute  
connected" over your favorite routing protocols and you're in the  
6to4 gatewaying business.

If you want to run a public gateway, announce 192.88.99.0/24 and  
2002::/16 over BGP.

Iljitsch

-- 
I've written another book! http://www.runningipv6.net/