07-Layer 3—IP Services Command Reference

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16-IPv6 transition technologies commands
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16-IPv6 transition technologies commands 69.69 KB

IPv6 transition technologies commands

display 6rd

Use display 6rd to display 6RD tunnel interface information.

Syntax

display 6rd [ interface tunnel number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface tunnel number: Specifies an existing tunnel interface by its number. If you do not specify a 6RD tunnel interface, this command displays information about all existing 6RD tunnel interfaces.

Examples

# Display information about 6RD tunnel interface Tunnel 1.

<Sysname> display 6rd interface tunnel 1

Interface           : Tunnel1

  Tunnel source     : 10.11.12.13

  6RD status        : Operational

    IPv6 prefix     : 2001:1000::/32

    IPv4 prefix     : 10.0.0.0/8

    IPv4 suffix     : 0.0.0.0/0

    BR address      : 10.11.12.1

    Delegated prefix: 2001:1000:B0C:D00::/56

# Display information about all 6RD tunnel interfaces.

<Sysname> display 6rd

Interface           : Tunnel0

  Tunnel source     : 0.0.0.0

  6RD status        : Not operational

    IPv6 prefix     : 2002:1000::/32

 

Interface           : Tunnel1

  Tunnel source     : 10.11.12.13

  6RD status        : Operational

    IPv6 prefix     : 2001:1000::/32

    IPv4 prefix     : 10.0.0.0/8

    IPv4 suffix     : 0.0.0.0/0

    BR address      : 10.11.12.1

    Delegated prefix: 2001:1000:B0C:D00::/56

Table 1 Command output

Field

Description

Interface

Tunnel interface.

Tunnel source

Source address of the tunnel.

If a source interface is specified for the tunnel interface, this field displays the IP address of the source interface.

If no source address or source interface is specified for the tunnel interface, or the specified source interface has no IP address, this field displays 0.0.0.0.

6RD status

6RD configuration status:

·     Operational—6RD configuration is available.

·     Not operational—6RD configuration is not available.

This field displays Operational when the tunnel source address and 6RD prefix are configured.

IPv6 prefix

6RD prefix and its length. If no 6RD prefix is configured, this field displays Not configured.

IPv4 prefix

IPv4 prefix and its length. If the prefix length is not configured, this field displays 0.0.0.0/0.

IPv4 suffix

IPv4 suffix and its length. If the suffix length is not configured, this field displays 0.0.0.0/0.

BR address

IP address of the BR router. If no BR address is configured, this field displays Not configured.

Delegated prefix

6RD delegated prefix calculated based on the 6RD configuration. This field is empty if the 6RD status is Not operational.

 

Related commands

tunnel 6rd br

tunnel 6rd ipv4

tunnel 6rd prefix

display 6rd destination

Use display 6rd destination to display a 6RD tunnel destination address.

Syntax

display 6rd destination prefix ipv6-prefix interface tunnel number

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

prefix ipv6-prefix: Specifies a 6RD delegated prefix.

interface tunnel number: Specifies an existing tunnel interface by its number.

Usage guidelines

After this command is executed, the system displays the 6RD tunnel destination address calculated by the specified 6RD delegated prefix and 6RD configuration on the tunnel interface. The 6RD configuration includes the 6RD prefix/prefix length, IPv4 prefix/prefix length, and IPv4 suffix/suffix length.

Examples

# Display the 6RD tunnel destination address calculated by the 6RD delegated prefix 2001:1000:0101:0100:: and 6RD configuration on Tunnel 1.

<Sysname> display 6rd destination prefix 2001:1000:0101:0100:: interface tunnel 1

Interface       : Tunnel1

Delegated prefix: 2001:1000:101:100::

Destination     : 10.1.1.1

Table 2 Command output

Field

Description

Interface

Tunnel interface.

Delegated prefix

6RD delegated prefix.

Destination

Tunnel destination address.

 

Related commands

display 6rd prefix

display 6rd prefix

Use display 6rd prefix to display a 6RD delegated prefix.

Syntax

display 6rd prefix destination ipv4-address interface tunnel number

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

destination ipv4-address: Specifies a 6RD tunnel destination address.

interface tunnel number: Specifies an existing tunnel interface by its number.

Usage guidelines

After this command is executed, the system displays the 6RD delegated prefix calculated by the specified 6RD tunnel destination address and 6RD configuration on the tunnel interface. The 6RD configuration includes the 6RD prefix/prefix length, IPv4 prefix/prefix length, and IPv4 suffix/suffix length. The 6RD delegated prefix calculated on the peer tunnel interface must be the same as the 6RD delegated prefix configured on the local device.

Examples

# Display the 6RD delegated prefix calculated by the 6RD tunnel destination address 10.1.1.1 and 6RD configuration on Tunnel 1.

<Sysname> display 6rd prefix destination 10.1.1.1 interface tunnel 1

Interface       : Tunnel1

Destination     : 10.1.1.1

Delegated Prefix: 2001:1000:101:100::

Table 3 Command output

Field

Description

Interface

Tunnel interface.

Destination

6RD tunnel destination address.

Delegated Prefix

6RD delegated prefix.

 

Related commands

display 6rd destination

display ds-lite b4 information

Use display ds-lite b4 information to display information about the connected B4 routers on the AFTR, including the IPv6 addresses of the B4 routers, and the assigned tunnel IDs.

Syntax

display ds-lite b4 information

 

Views

Any view

Predefined user roles

network-admin

network-operator

Examples

# Display information about the connected B4 routers.

<Sysname> display ds-lite b4 information

 B4 address                                     Tunnel ID  Tunnel interface  Idle time

 1234:5678:1234:5678:abcd:abcd:efff:1234        0x00000023       1              12

 2000::100:1                                    0x80000013       2              13

 3000::2                                        0x00000015       3              8

 3001::2                                        0x00000032       --             15

Total B4 addresses: 4

# Display information about the connected B4 routers.

<Sysname> display ds-lite b4 information

Slot 0 Cpu 0:

 B4 address                                     Tunnel ID  Tunnel interface  Idle time

 1234:5678:1234:5678:abcd:abcd:efff:1234        0x00000023       1              12

 2000::100:1                                    0x80000013       2              13

 3000::2                                        0x00000015       3              2

 3001::2                                        0x00000032       --             --

Total B4 addresses: 4

 

Slot 1 Cpu 0:

 B4 address                                     Tunnel ID  Tunnel interface  Idle time

 1234:5678:1234:5678:abcd:abcd:efff:ffff        0x00000125       1              12

 5000::100:1                                    0x80000010       5              13

Total B4 addresses: 2

Table 4 Command output

Field

Description

B4 address

IPv6 address of the B4 router.

Tunnel ID

Tunnel ID that the IPv6 address of the B4 router maps to.

Tunnel interface

ID of the tunnel interface on the DS-Lite tunnel to which the mapping belongs.

When the tunnel to which the mapping belongs is removed or a tunnel with the same ID but different mode is created, this field displays hyphens (--).

Idle time

Remaining time in minutes for the mapping between the IPv6 address of the B4 router and tunnel ID.

When the mapping ages out but is still used by a session, this field displays hyphens (--).

Total B4 addresses

Number of IPv6 addresses of the B4 routers.

ds-lite enable

Use ds-lite enable to enable DS-Lite tunneling on an interface.

Use undo ds-lite enable to disable DS-Lite tunneling on an interface.

Syntax

ds-lite enable

undo ds-lite enable

 

Default

DS-Lite tunneling is disabled on an interface.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

Use this command on the AFTR's interface connected to the public IPv4 network, so the AFTR can forward IPv4 packets to the B4 router through the DS-Lite tunnel.

You cannot enable DS-Lite tunneling on a DS-Lite tunnel interface on the AFTR.

Examples

# Enable DS-Lite tunneling on GigabitEthernet 0/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 0/0/1

[Sysname-GigabitEthernet0/0/1] ds-lite enable

tunnel 6rd br

Use tunnel 6rd br to specify a BR address for a 6RD tunnel.

Use undo tunnel 6rd br to restore the default.

Syntax

tunnel 6rd br ipv4-address

undo tunnel 6rd br

Default

No BR address is specified for a 6RD tunnel.

Views

Tunnel interface view

Predefined user roles

network-admin

Parameters

ipv4-address: Specifies the BR address (IPv4 address of a 6RD BR router), in dotted decimal notation.

Usage guidelines

Use this command on a 6RD CE. For a 6RD network to communicate with a non-6RD network over a 6RD tunnel, you must specify the BR address on the 6RD CE.

All the 6RD CEs and 6RD BR routers in a 6RD network must have the same IPv4 prefix and suffix. Make sure the BR address and the tunnel source address have the same IPv4 prefix and suffix.

Examples

# Specify the BR address as 10.11.12.13 on Tunnel 1.

<Sysname> system-view

[Sysname] interface tunnel 1 mode ipv6-ipv4 6rd

[Sysname-Tunnel1] tunnel 6rd br 10.11.12.13

Related commands

display 6rd

tunnel 6rd ipv4

Use tunnel 6rd ipv4 to specify a prefix length and a suffix length for a 6RD tunnel source address.

Use undo tunnel 6rd ipv4 to restore the default.

Syntax

tunnel 6rd ipv4 { prefix-length length | suffix-length length } *

undo tunnel 6rd ipv4

Default

All 32 bits of the IPv4 tunnel source address are used to create the 6RD delegated prefix.

Views

Tunnel interface view

Predefined user roles

network-admin

Parameters

prefix-length length: Specifies the prefix length in the range of 0 to 31.

suffix-length length: Specifies the suffix length in the range of 0 to 31.

Usage guidelines

All 6RD tunnel interfaces in a 6RD network must be configured with the same IPv4 prefix length and suffix length.

You can specify a prefix length, a suffix length, both prefix and suffix lengths, or neither. The device will remove the prefix and suffix bits from the tunnel source address and embed the left bits of the address to the 6RD delegated prefix. If neither a prefix length nor a suffix length is specified, all 32 bits of the IPv4 tunnel source address will be embedded in the 6RD delegated prefix.

Examples

# Specify both the prefix length and suffix length as 8 on Tunnel 1.

<Sysname> system-view

[Sysname] interface tunnel 1 mode ipv6-ipv4 6rd

[Sysname-Tunnel1] tunnel 6rd ipv4 prefix-length 8 suffix-length 8

Related commands

display 6rd

display 6rd destination

display 6rd prefix

tunnel 6rd prefix

Use tunnel 6rd prefix to configure the 6RD prefix for a 6RD tunnel.

Use undo tunnel 6rd prefix to restore the default.

Syntax

tunnel 6rd prefix ipv6-prefix/prefix-length

undo tunnel 6rd prefix

Default

No 6RD prefix is configured for a 6RD tunnel.

Views

Tunnel interface view

Predefined user roles

network-admin

Parameters

ipv6-prefix/prefix-length: Specifies the IPv6 prefix and its length. The value range for the prefix length is 1 to 127.

Usage guidelines

A 6RD delegated prefix contains a 6RD prefix and all or part of the bits in the IPv4 tunnel source address.

All tunnels in a 6RD network must have the same 6RD prefix.

Examples

# Configure the 6RD prefix as 2001:1000::/32 on Tunnel 1.

<Sysname> system-view

[Sysname] interface tunnel 1 mode ipv6-ipv4 6rd

[Sysname-Tunnel1] tunnel 6rd prefix 2001:1000::/32

Related commands

display 6rd

display 6rd destination

display 6rd prefix

 

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