CCNP - 6to4 Tunnels

Important Components

 * 1) Tunnel mode (6to4).
 * 2) Tunnel source (IPv4 Interface/Address).
 * 3) 6to4 IPv6 address.

Configuration
1. Router(config)#interface tunnel0 2. Router(config-if)#tunnel mode ipv6ip 6to4 3. Router(config-if)#tunnel source [ip]
 * 1) Enters tunnel interface 0 configuration mode.
 * 2) Sets the tunnel mode to 6to4.
 * 3) Sets the tunnel source to an IPv4 interface.