tunnel-protocol

Function

The tunnel-protocol command specifies the tunnel encapsulation protocol.

The undo tunnel-protocol command restores the default encapsulation protocol (None).

Format

tunnel-protocol gre

tunnel-protocol ipsec

tunnel-protocol ipv4-ipv6 [ ds-lite ]

tunnel-protocol ipv6-ipv4 [ 6rd | 6to4 | auto-tunnel | isatap ]

tunnel-protocol none

undo tunnel-protocol

Parameters

Parameter	Description	Value
gre	Set the tunnel encapsulation protocol to GRE.	-
ipsec	Set the tunnel encapsulation protocol to IPSec.	-
ipv4-ipv6 [ ds-lite ]	Indicates that the encapsulation type on the tunnel interface is IPv4 over IPv6 and that the tunnel is manually configured. ds-lite: Indicates that the tunnel is a ds-lite tunnel.	-
ipv6-ipv4 [ 6rd \| 6to4 \| auto-tunnel \| isatap ]	Indicates that the encapsulation type on the tunnel interface is IPv6 over IPv4. If none of the following parameters are specified, the tunnel is manually configured and is a point-to-point tunnel. 6rd: Indicates that the tunnel is a 6RD tunnel. The 6RD tunnel is a point-to-multipoint tunnel. 6to4: Indicates that the tunnel is a 6to4 tunnel. The 6to4 tunnel is a point-to-multipoint tunnel. auto-tunnel: indicates that the tunnel is an automatic tunnel using IPv4-compatible IPv6 addresses. The automatic tunnel is a point-to-multipoint tunnel. isatap: indicates that the tunnel is an ISATAP tunnel. Manual tunnels are point-to-point tunnels, and 6RD, 6to4, and automatic tunnels are point-to-multipoint tunnels. Only one automatic tunnel can be created on a node.	-
none	Set the encapsulation type on the tunnel interface to NONE. NONE is the initial setting of a tunnel interface, which means that no other encapsulation is used.	-

Views

Tunnel interface view

Default Level

2: Configuration level

Usage Guidelines

Tunnel interface is a logical interface for packet encapsulation. A new tunnel interface provides only packet encapsulation function and does not use any extra protocol (NONE) to encapsulate the packets. You can specify a protocol as the encapsulation protocol, such as GRE and IPSec.

NOTE:

You must specify the tunneling protocol before specifying other parameters, such as source and destination tunnel addresses. Changing the encapsulation protocol of a tunnel will delete all other settings of the tunnel.

The tunnel interface supports ISIS only when tunnel-protocol is set to GRE.

Example

# Apply a tunnel policy in the Tunnel0 interface view to configure a GRE tunnel.

<sysname> system-view
[sysname] interface tunnel 0
[sysname-Tunnel0] tunnel-protocol gre

# Apply a tunnel policy in the Tunnel1 interface view to configure a P2MP GRE tunnel.

<sysname> system-view
[sysname] interface tunnel 1
[sysname-Tunnel1] tunnel-protocol gre p2mp