tunnel-protocol

Function

The tunnel-protocol command configures the tunnel protocol on a tunnel interface.

The undo tunnel-protocol command restores the tunnel protocol to the default configuration.

By default, no tunnel protocol is used on a tunnel interface.

Format

tunnel-protocol { gre | ipv6-ipv4 [ 6to4 | isatap ] | ipv4-ipv6 | mpls te | none }

undo tunnel-protocol

Parameters

Parameter	Description	Value
gre	Indicate that the GRE tunnel protocol is configured on a tunnel interface. NOTE: Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support the parameter.	-
ipv4-ipv6	Indicate that the IPv4 to IPv6 tunnel protocol is configured on a tunnel interface. NOTE: Only the S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-HI, S6730-H, S6730S-H, S6730-S, and S6730S-S support the parameter.	-
ipv6-ipv4 [ 6to4 \| isatap ]	Configure the tunnel protocol of the tunnel interface as ipv6-ipv4: ipv6-ipv4: use a manual IPv6 over IPv4 tunnel ipv6-ipv4 6to4 : using 6to4 tunnel ipv6-ipv4 isatap : using isatap tunnel NOTE: Only the S5720-EI, S5720-HI, S5720I-SI, S5720S-SI, S5720-SI, S5735-S, S5735S-S, S5735-S-I, S5730-HI, S5730S-EI, S5730-SI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6720S-SI, S6720-SI, S6730-H, S6730S-H, S6730-S, and S6730S-S support these parameter.	-
mpls te	Indicate that the MPLS TE tunnel protocol is configured on a tunnel interface. NOTE: Only the S5720-EI, S5720-HI, S5730-HI, S5731-H, S5731-S, S5731S-H, S5731S-S, S5732-H, S6720-EI, S6720-HI, S6720S-EI, S6730-H, S6730S-H, S6730-S, and S6730S-S support the parameter.	-
none	Indicate that no tunnel protocol is configured on a tunnel interface.	-

Views

Tunnel interface view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After creating a tunnel interface using the interface tunnel command, run the tunnel-protocol command to configure the tunnel encapsulation mode for the tunnel interface.

The following tunnel encapsulation modes are available:

GRE: encapsulates packets of some network layer protocols such as IP or IPX to enable these encapsulated packets to be transmitted on networks running other protocols such as IP.
IPv4-IPv6: creates tunnels on the IPv6 networks to connect IPv4 isolated sites so that IPv4 isolated sites can access other IPv4 networks through the IPv6 public network.
IPv6-IPv4: creates tunnels on the IPv4 networks to connect IPv6 isolated sites so that IPv6 packets can be transmitted on IPv4 networks.
MPLS TE: integrates the MPLS technology with traffic engineering. It can reserve resources by setting up LSP tunnels for a specified path in an attempt to avoid network congestion and balance network traffic.

Precautions

The none mode indicates the initial configuration, that is, no tunnel encapsulation mode is configured. In practice, you must select another tunnel encapsulation mode.
You must configure the tunnel encapsulation mode before setting the source IP address or other parameters for a tunnel interface. Changing the encapsulation mode of a tunnel interface deletes other parameters of the tunnel interface.

Example

# Set the tunnel encapsulation mode of Tunnel2 to GRE.

<HUAWEI> system-view
[HUAWEI] interface tunnel 2
[HUAWEI-Tunnel2] tunnel-protocol gre