User's Manual

WAN Configuration
65
5
WAN Settings
This page configures address assignment options for the WAN interface, using DHCP, a
static address, or PPPoE. The WAN interface should connect directly to a Layer 3 device
at your service provider’s central office or to another gateway device at your office. You
therefore need to use the method and parameter settings given to you by your service
provider or network administrator.
Dynamic IP Address
Click WAN, WAN Settings. Be sure the WAN interface is enabled. Then select
Dynamic IP Address mode, fill in the appropriate string for the DHCP options as
required, and click Apply.
Figure 5-21 WAN Settings (DHCP)
Field Attributes
• Mode – Select Dynamic IP Address to obtain a address from an upstream DHCP
server.
• Class Identifier (Option 60) – Vendor Class Identifier is used identify the vendor
class and configuration of the Gateway to the DHCP server, which then uses this
information to decide on how to service the client or the type of information to
return.
• Client Identifier (Option 61) – Client Identifier is a unique identifier for the Gateway
which is sent to the DHCP server. DHCP servers use this value to index their
database of address bindings. This value must therefore be unique for all clients in
an administrative domain.
• ENumber (Option 125) – Vendor Idenifying Vendor-Specific Information tag
specified in the form of of a string of numerals xx xx xx xx.