This information is provided as is with no warranty. If you burn your kitchen sink don't blame me.
This is a small howto set up a ipv6-subnet with capable cisco-gear
Working connection to a IPv6-POP
IOS >= 12.3 (12.3T, 12.2S)
decent hardware (or more memory for your 2600)
Cisco IPv6-POP v6-localnet:: ---- v6-localnet::1/v6-tunnel::2 ---- v6-tunnel::1/v6-world
boring things cutted out...
ipv6 unicast-routing ipv6 icmp error-interval 0 ! interface Tunnel0 no ip address ipv6 enable ipv6 nd suppress-ra ipv6 address [v6-tunnel::2]/[netmask] tunnel mode ipv6ip tunnel source [myipv4] tunnel destination [POPv4] ! interface FastEthernet0 description internal ipv6 enable ipv6 address [v6-localnet::1]/[netmask] ! ipv6 route 2000::/3 [v6-tunnel::1]
These links were helpful:
Make sure you don't forget to set tunnel source and tunnel destination.
Since this is a router, radvd or rtadvd is not needed.
Clients can be configured using rfc 2462 (IPv6 Stateless Address Autoconfiguration).
The command "ipv6 icmp error-interval 0" disables the standard IPv6 ICMP rate-limit on IOS,
"ipv6 nd suppress-ra" disables routing announcements to the outside.
(Thanks to Pim van Pelt for pointing this out)
In this setup, all rfc2462-enabled hosts are immediately reachable from the outside as soon as you finish writing the config.
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