Cisco IPv6 Configuration Lab

Goal: Configure the network to be dual-stack by adding support for IPv6 addresses.

Verify IPv4 Connectivity

  • Verify routers have been configured with IPv4 addresses
    • #show ip int brief
  • View routes between routers
    • #show ip route

IPv6 Addressing

  • Configure global unicast IPv6 address
    • (config)#int [interface]
    • (config-if)#ipv6 address [ipaddress]/[CIDR]
  • Configure devices with EUI-64
    • (config-if)#ipv6 address [ip network address]/[CIDR] eui-64
  • When configuring a IPv6 address the interface also automatically configures a link-local address that starts with FE80::
  • Show IPv6 neighbors
    • #show ipv6 neighbors

Static Routing

  • Verify which IPvt dynamic routing protocols are running
    • #show ipv6 protocol
  • Configure default gateway
    • (config)#ipv6 route ::/0 [gateway address]
  • Turn on IPv6 routing
    • (config)#ipv6 unicast-routing
  • Configure static routes
    • (config)#ipv6 route [IPv6 subnet]/[CIDR] [Next-hop ipv6 address]
  • Verify IPv6 routes
    • #show ipv6 route