Huawei S9300 Configuration Manual page 118

S9300&S9300E Terabit Routing Switch
Configuration Guide - IP Service
the remote ID carries the phone number and user name in a dial-up connection, or the peer IP
address and access interface in a point-to-point connection. Currently, a remote ID can contain
a maximum of 247 bytes.
When the S9300&S9300E functions as the DHCPv6 relay agent, it processes the remote ID as
follows:
l
l
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
dhcpv6 remote-id format { default | user-defined text }
The format of the remote ID in DHCPv6 messages is set.
By default, the default format of the remote ID in DHCPv6 messages is used.
Step 3 Run:
interface interface-type interface-number
The interface view is displayed.
The interface can be an Ethernet interface, a GE interface or an XGE interface.
Step 4 Run:
dhcpv6 remote-id insert enable
The function of appending the remote ID to DHCPv6 relay messages is enabled.
Or, run:
dhcpv6 remote-id rebuild enable
The function of forcibly appending the remote ID to DHCPv6 relay messages is enabled.
l After the dhcpv6 remote-id insert enable command is used, if the original DHCPv6
l After the dhcpv6 remote-id rebuild enable command is used, if the original DHCPv6
If you run the dhcpv6 remote-id insert enable and dhcpv6 remote-id rebuild enable
commands simultaneously on an interface, the command that you run later takes effect.
----End
Issue 01 (2012-03-15)
The S9300&S9300E directly receives messages from DHCPv6 clients. When constructing
a Relay-Forward message, the S9300&S9300E adds the remote ID to the Relay-Forward
message according to the configuration.
If the Relay-Reply message received by the S9300&S9300E from the DHCPv6 server
contains the remote ID, the S9300&S9300E removes the remote ID from the Relay-Reply
message before forwarding it to DHCPv6 clients or other relay agents.
messages do not carry the remote ID, the S9300&S9300E appends the remote ID to the
DHCPv6 messages. If the original DHCPv6 messages carry the remote ID, the
S9300&S9300E sends the DHCP messages directly.
messages do not carry the remote ID, the S9300&S9300E appends the remote ID to the
DHCPv6 messages. If the original DHCPv6 messages carry the remote ID, the
S9300&S9300E deletes the original remote ID from the DHCP messages and appends a new
remote ID to the DHCP messages.
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5 DHCPv6 Configuration
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