Configuring the Re-routing Function for the DHCP Relay Agent on a Distributed Gateway

This section provides a sample of configuring the re-routing function for the DHCP relay agent on a distributed gateway using the rpc method.

You need to configure the Option82 field to carry backhaul information of DHCP messages before configuring this function. For the Option82 field configuration, see Configuring the Option82 Function.

**Table 1** Configuring the re-routing function for the DHCP relay agent on a distributed gateway
Operation	XPATH
rpc	/huawei-dhcp:dhcp-config/dhcpv4-config/dhcp-relay-configuration/dhcp-relays/dhcp-relay/anycast-gw-reroute-enable

Data Requirements

Item	Data	Description
Whether to enable DHCP	true	Enable DHCP.
Whether to enable the DHCP relay function	true	Enable the DHCP relay function.
Interface name	VBDIF26	Set the name of the interface enabled with the DHCP relay function to VLANIF3.
Whether to enable the re-routing function for the DHCP relay agent on a distributed gateway.	true	Enable the re-routing function for the DHCP relay agent on a distributed gateway.

Request Example

<rpc message-id="123" xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
  <edit-config>
    <target>
      <running/>
    </target>
    <config>
    <bd:bridge-domains xmlns:bd="urn:huawei:params:xml:ns:yang:huawei-bd" xmlns:xc="urn:ietf:params:xml:ns:netconf:base:1.0" xc:operation="merge">
        <bd:bridge-domain>
        <bd:id>26</bd:id>
        </bd:bridge-domain>
    </bd:bridge-domains>
    <interfaces xmlns="urn:ietf:params:xml:ns:yang:ietf-interfaces">
     <interface xmlns:ns0="urn:ietf:params:xml:ns:netconf:base:1.0" ns0:operation="merge">
      <name>Vbdif26</name>
      <type xmlns:x="urn:ietf:params:xml:ns:yang:iana-if-type">x:propVirtual</type>
     </interface>
    </interfaces>
    <dhcp-config xmlns="urn:huawei:params:xml:ns:yang:huawei-dhcp">
     <dhcpv4-config>
      <enable>true</enable>
      <dhcp-relay-configuration>
       <dhcp-relays>
        <dhcp-relay xmlns:ns0="urn:ietf:params:xml:ns:netconf:base:1.0" ns0:operation="merge">
         <interface-name>Vbdif26</interface-name>
          <enable>true</enable>
          <anycast-gw-reroute-enable>true</anycast-gw-reroute-enable>
         </dhcp-relay>
        </dhcp-relays>
       </dhcp-relay-configuration>
      </dhcpv4-config>
     </dhcp-config>
    </config>
  </edit-config>
</rpc>

Response Example

Sample of successful response

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="123">
  <ok/>
</rpc-reply>

Sample of failed response

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="11">
  <rpc-error>
    <error-type>application</error-type>
    <error-tag>operation-failed</error-tag>
    <error-severity>error</error-severity>
    <error-path>/huawei-dhcp:dhcp-config/dhcpv4-config/dhcp-relay-configuration/dhcp-relays/dhcp-relay[interface-name='Vbdif26']/anycast-gw-reroute-enable</error-path>
    <error-message>parse rpc config error.(Invalid value in "anycast-gw-reroute-enable" element.).</error-message>
  </rpc-error>
</rpc-reply>