Configuring DHCP Snooping Relay Information Sub-options

The DHCP relay agent sub-options are part of DHCP Option 82, which is also known as the "Relay Agent Information Option". When a DHCP relay agent forwards a request, it can insert these sub-options to provide additional context about the client's location or identity. This information helps the DHCP server make more informed decisions about IP address allocation and can assist in network management and troubleshooting.

Subscriber ID (SID):

Typically, this can be an ASCII string that uniquely identifies the subscriber. It could be a username, account number, or any other identifier that makes sense in your network context.

Circuit ID (CID):

This usually includes information about the physical circuit or port. It can be an ASCII string that identifies the interface on which the DHCP request was received. This might include details like the VLAN ID, port number, or other relevant interface information.

Remote ID (RID):

This ID is often used to provide additional information about the remote host or device. It can be an ASCII string that includes the MAC address, device serial number, or any other unique identifier assigned by the network administrator.

Complete the following steps to configure the Option 82 sub-options.