display ipv4-ipv6 option-mapping

Function

The display ipv4-ipv6 option-mapping command displays mappings between IPv4 and IPv6 options.

This command is supported only on the NetEngine 8000 F1A.

Format

display ipv4-ipv6 option-mapping

Parameters

None

Views

All views

Default Level

1: Monitoring level

Task Name and Operations

Task Name	Operations
bras-control	read

Usage Guidelines

Usage Scenario

The display ipv4-ipv6 option-mapping command displays the mappings of the Access Line Identification, Vendor-class, Client-id contained in the DHCPv4 Option 82, PPPoE field, and DHCPv6 Options.

For example, the command output shows whether the Access Line Identification information is contained in the DHCPv4 Option 82, PPPoE field, and DHCPv6 Options 18, 37, and 17. Based on the command output, run the access-line-id parse-mode or option-82 parse-mode command to configure how the device parses the Access Line Identification information. The access-line-id parse-mode or option-82 parse-mode command configuration affects the parsing of DHCPv4, PPPoE, and DHCPv6 packets.

Other commands that configure Access Line Identification information include:

client-access-line-id and client-option82
access-line-id translate and option82-relay-mode subopt
option82-relay-mode include and access-line-id include
option82-relay-mode dslam and access-line-id dslam
Other commands that configure Vendor-class information include:
dhcp_option-60 and vendor-class
display vendor-class and display dhcp option-60
client-vendor-class and client-option60
Other commands that configure Client-id information include:
option-61
dhcp option-61 default-not-insert
Those commands are effective for both IPv4 and IPv6 packets.

Precautions

In VS mode, this command is supported only by the admin VS.

Example

The actual command output varies according to the device. The command output here is only an example.

# Display mappings between IPv4 and IPv6 options.

<HUAWEI> display ipv4-ipv6 option-mapping
--------------------------------------------------------------------------------
Name           | Protocol | Option code        |  Suboption code    | TR  | RFC
--------------------------------------------------------------------------------
Access         |  DHCPv4  |  82(DHCP           |  1(Circuit ID)     | 101 | 3046
Line           |          |  Relay Agent       |--------------------------------
Identification |          |  Information       |  2(Remote ID)      | 101 | 3046
               |          |  Option)           |--------------------------------
               |          |                    |  9(Vendor-Specific,| 101 | 4243
               |          |                    |  include 0x81-0x90)|     |
               |----------------------------------------------------------------
               |  PPPoE   | 0x0105             |  1(Circuit ID)     | 101 | 2516
               |          | (Vendor-Specific   |--------------------------------
               |          | Tag)               |  2(Remote ID)      | 101 | 2516
               |          |                    |--------------------------------
               |          |                    |  0x81-0x90(DSL Line| 101 | 2516
               |          |                    |  characteristics)  |     |
               |----------------------------------------------------------------
               |  DHCPv6  | 18(Interface-ID)   |                    | 177 | 3315
               |          |-----------------------------------------------------
               |          | 37(Remote ID)      |                    | 177 | 3315
               |          |-----------------------------------------------------
               |          | 17(Vendor-Specific,|                    | 177 | 4649
               |          | include 0x81-0x90) |
--------------------------------------------------------------------------------
Vendor-class   |  DHCPv4  | 60(Vendor Class    |                    |     | 2132
               |          | Identifier)        |                    |     |
               |----------------------------------------------------------------
               |  DHCPv6  | 16(Vendor Class    |                    |     | 3315
               |          | Option)            |                    |     |
--------------------------------------------------------------------------------
Client-id      |  DHCPv4  | 61                 |                    |     | 2132
               |          | (Client-identifier)|                    |     |
               |----------------------------------------------------------------
               |   DHCPv6 |  1(Client          |                    |     | 3315
               |          | Identifier Option) |                    |     |
--------------------------------------------------------------------------------

**Table 1** Description of the **display ipv4-ipv6 option-mapping** command output
Item	Description
Name	Attribute name.
Protocol	Protocol.
Option code	Option code.
Suboption code	Suboption code.
TR	Compliant TR standard.
RFC	Compliant RFC standard.