Configure Tunnel Interface

Step

Command

Description

Create tunnel interface and enter its configuration mode

interface tunnel tunnel-unit

Mandatory
By default, the tunnel interface is not created on the device.

Configure work mode of tunnel interface

tunnel mode { gre [ ip | ipv6 ] | ipip | ipipv6 | ipv6ipv6 | ipv6ip [ 6to4 | isatap ] }

Optional
By default, the work mode of the tunnel interface is GRE over IPv4.

Configure TOS of tunnel interface

tunnel tos tos-value

Optional
By default, the tunnel interface is not configured with TOS.

Configure TTL of tunnel interface

tunnel ttl ttl-value

Optional
By default, the TTL value of the tunnel interface is 255.