DHCP‑Relay

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This chapter provides examples on how to use Netconf to manage DHCP Relay configurations on AsterNOS devices.

Get Current DHCP Relay Configurations

Request example to get all DHCP Relay configurations via get-config with subtree filter.

<filter type="subtree">
  <top>
    <dhcp-relay/>
  </top>
</filter>

Response example

<data xmlns="urn:ietf:params:xml:ns:netconf:base:1.0">
  <top>
    <dhcp-relay xmlns="http://asterfusion.com/ns/yang/asternos-dhcp-relay">
      <dhcp-relay-agent>
        <name>test</name>
        <ip-type>v4</ip-type>
        <downlink-interfaces>Vlan100</downlink-interfaces>
        <uplink-interfaces>Ethernet1</uplink-interfaces>
        <loopback-interface>Loopback1</loopback-interface>
        <server-ips>10.1.1.1</server-ips>
        <server-ips>10.1.1.11</server-ips>
        <source-ip>10.2.2.2</source-ip>
      </dhcp-relay-agent>
      <interfaces>
        <name>Vlan100</name>
        <option82-remote-id>sonic</option82-remote-id>
        <dhcp-agent-ip>10.1.1.12</dhcp-agent-ip>
      </interfaces>
    </dhcp-relay>
  </top>
</data>

Set DHCP Relay Configurations

NOTE: The up link, down link, loopback interface must be router interface and configured ip address.

Request example to set a DHCP Relay configuration via edit-config.

<config>
  <top>
    <dhcp-relay>
      <dhcp-relay-agent>
        <name>test</name>
        <ip-type>v4</ip-type>
        <downlink-interfaces>Vlan100</downlink-interfaces>
        <uplink-interfaces>Ethernet1</uplink-interfaces>
        <loopback-interface>Loopback1</loopback-interface>
        <server-ips>10.1.1.1</server-ips>
        <server-ips>10.1.1.11</server-ips>
        <source-ip>10.2.2.2</source-ip>
      </dhcp-relay-agent>
    </dhcp-relay>
  </top>
</config>

Response example

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:487ac1eb-4a86-4f44-bd6f-87a16ad92815">
  <ok/>
</rpc-reply>

Set DHCP Relay Agent IP configuration

Request example to set a DHCP Relay Agent IP for down link interface via edit-config.

<config>
  <top>
    <dhcp-relay>
      <interfaces>
        <name>Vlan100</name>
        <dhcp-agent-ip>10.1.1.12</dhcp-agent-ip>
      </interfaces>
    </dhcp-relay>
  </top>
</config>

Response example

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:be7fefd9-98af-4153-9a86-cf82410e4676">
  <ok/>
</rpc-reply>

Set DHCP Relay Option82 for down link interface

Request example to set a DHCP Relay Option82 for down link interface via edit-config.

<config>
  <top>
    <dhcp-relay>
      <interfaces>
        <name>Vlan100</name>
        <option82-remote-id>sonic</option82-remote-id>
      </interfaces>
    </dhcp-relay>
  </top>
</config>

Response example

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:a6096761-9460-480d-bac2-0d7727ddef90">
  <ok/>
</rpc-reply>

Delete DHCP Relay Configuration

Request example to delete DHCP Relay configurations of interface via edit-config.

<config>
  <top>
    <dhcp-relay>
      <dhcp-relay-agent operation="delete">
        <name>test</name>
        <ip-type>v4</ip-type>
      </dhcp-relay-agent>
    </dhcp-relay>
  </top>
</config>

Response example

<rpc-reply xmlns="urn:ietf:params:xml:ns:netconf:base:1.0" message-id="urn:uuid:81c62129-0eed-4041-93a9-dd748f2c9dcf">
  <ok/>
</rpc-reply>