3Com OfficeConnect 3CRWE554G72 User Manual

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60 CHAPTER 5: GATEWAY C ONFIGURATIONDynamic IP AddressFigure 42 Connection Parameters Screen - Dynamic IPIf this mode is selected, your IP Address, Subnet Mask, and DNS Addresswill be obtained automatically from your ISP. They are not displayed onthis screen, but may be viewed on the Status screen (click on Status andLogs on the left hand menu bar).To setup the Gateway for use with a dynamic IP address connection:1 Select Dynamic IP Address (automatically allocated) in the IP AllocationMode field. (Figure 42)2 Enter your Primary DNS Address and Secondary DNS address.Your ISP may provide you with primary and secondary DNS addresses. Ifthey have been provided, enter the addresses in the appropriate textboxes. If not, leave 0.0.0.0 in the boxes.3 Enter the Host Name (optional).Some ISPs require a host name. If your ISP has this requirement, enter thehost name in the Host Name text box.4 If you use ‘Cable’, your ISP may use your MAC address to authenticateyou. If this is the case, you will need to ‘Clone’ your MAC address. Thereare three options:■ Use the Gateway’s original Internet MAC address - This field isselected by default and is automatically filled in with the MAC addressof the Gateway.