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10.
IPv6 Commands
10.1
Tunnel Interface Commands
The commands in this section describe how to create, delete, and manage tunnel interfaces.Several
different types of tunnels provide functionality to facilitate the transition of IPv4 networks to IPv6
networks. These tunnels are divided into two classes: configured and automatic. The distinction is that
configured tunnels are explicitly configured with a destination or endpoint of the tunnel. Automatic
tunnels, in contrast, infer the endpoint of the tunnel from the destination address of packets routed into
the tunnel. To assign an IP address to the tunnel interface, please refer to "ip address" command. To
assign an IPv6 address to the tunnel interface, please refer to "ipv6 address" command.
10.1.1
Show Commands
10.1.1.1 show interface tunnel
This command displays the parameters related to tunnel such as tunnel mode, tunnel source address
and tunnel destination address.
Syntax
show interface tunnel [<0-7>]
Default Setting
None
Command Mode
Privileged Exec
Display Message
If you do not specify a tunnel ID, the command shows the following information for each configured
tunnel:
Tunnel ID: Shows the tunnel identification number.
Interface: Shows the name of the tunnel interface.
Tunnel Mode: Shows the tunnel mode.
Source Address: Shows the source transport address of the tunnel.
Destination Address: Shows the destination transport address of the tunnel.
If you specify a tunnel ID, the command shows the following information for the tunnel:
Interface Link Status: Shows whether the link is up or down.
MTU Size: Shows the maximum transmission unit for packets on the interface.
IPv6 Address/Length: If you enable IPv6 on the interface and assign an address, the IPv6
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