4000 Router Series Layer 3 - IP Services Command Reference

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Usage guidelines

The tunnel discard ipv4-compatible-packet command enables the device to check the source and

destination IPv6 addresses of the de-encapsulated IPv6 packets from the tunnel and discard packets that

use a source or destination IPv4-compatible IPv6 address.

Examples

# Enable dropping of IPv6 packets using IPv4-compatible IPv6 addresses.

<Sysname> system-view

[Sysname] tunnel discard ipv4-compatible-packet

tunnel tos

Use tunnel tos to set the ToS of tunneled packets.

Use undo tunnel tos to restore the default.

Syntax

tunnel tos tos-value

undo tunnel tos

Default

The ToS of tunneled packets is the same as the ToS of the original packets.

Views

Tunnel interface view

Predefined user roles

network-admin

Parameters

tos-value: Specifies the ToS of tunneled packets, in the range of 0 to 255.

Usage guidelines

After you configure this command, all the tunneled packets of different services sent on the tunnel

interface will use the same configured ToS. For more information about ToS, see ACL and QoS

Configuration Guide.

Examples

# Set the ToS of tunneled packets on the interface Tunnel 1 to 20.

<Sysname> system-view

[Sysname] interface tunnel 1 mode gre

[Sysname-Tunnel1] tunnel tos 20

Related commands

display interface tunnel

tunnel ttl

Use tunnel ttl to set the Time to Live (TTL) of tunneled packets.

Use undo tunnel ttl to restore the default.