ZyXEL Communications MSAP2000 manual Dhcp Relay Overview, Dhcp Relay Setup

MSAP2000 AAMS User’s Guide

CHAPTER 16

DHCP Relay

This chapter shows you how to set up DHCP relay.

16.1 DHCP Relay Overview

DHCP (Dynamic Host Configuration Protocol, RFC 2131 and RFC 2132) allows individual clients to obtain TCP/IP configuration at start-up from a DHCP server. You can configure the MSAP2000 AAMS to relay client TCP/IP configuration requests to a DHCP server and the server's responses back to the clients.

16.1.1 DHCP Relay Agent Information

The switch can add information to client TCP/IP configuration requests that it relays to a DHCP server. This helps provide authentication about the source of the requests. You can also specify additional information for the switch to add to the client TCP/IP configuration requests that it relays to the DHCP server. Please refer to RFC 3046 for more details.

The DHCP relay agent information feature adds an Agent Information field to the option 82 field of the DHCP headers of client TCP/IP configuration request frames that the switch relays to a DHCP server. The following lists the DHCP relay agent option 82 information that the switch may send to the DHCP server:

•Slot ID (1 byte)

•Port ID (1 byte)

•VLAN ID (2 bytes)

•System name (up to 32 bytes, this is optional).

16.2DHCP Relay Setup

Click Advanced Application and then DHCP Relay in the navigation panel to display the screen shown next.

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