CCNA Chapter 10

• Configuring a router interface includes issuing the following commands:

  • interface
  • description
  • ip address
  • ipv6 address
  • no shutdown
• It is a good practice to use the description command to add information about the network connected to the interface.
• The no shutdown command activates the interface.
• To verify interface configuration use the show ip interface brief and show ipv6 interface brief commands.
• show interfaces displays statistics for all interfaces on the device. Only displays the IPv4 addressing information.
• show ip interfaces displays the IPv4 statistics for all interfaces on a router.
• show ipv6 interfaces displays the IPv6 statistics for all interfaces on a router.
• Display the contents of the IP routing tables with the show ip route and show ipv6 route commands.
• The default gateway is used when a host sends a packet to a device on another network.
• A switch must have a default gateway address configured to remotely manage the switch from another network.
• To configure an IPv4 default gateway on a switch, use the ip default-gateway ip-address global configuration command.