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MSAP2000 AAM User’s Guide
C HAPTER 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 AAM 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).
16.2 DHCP Relay Setup
Click Advanced Application and then DHCP Relay in the navigation panel to
display the screen shown next.