User's Manual  for
PLANET ISDN Router Product

IRT-401


Chapter 7. IRT-401 Configuration ¡V DHCP Server

This chapter provides you with information on how to automatically assign the workstations on your network with IP addresses as well as supply DNS and Gateway information.

Topics covered:


Setting up the DHCP Server

The IRT-401 is supplied with a 16 user built-in DHCP server, which can be used to dynamically assign your workstations with an IP address. If you are already running a DHCP Server (e.g. NT Server), there is no need to utilities this function. However, it is ideal for small peer to peer networks running Windows 95, 98 or NT Workstation.

To set-up the DHCP Server, follow the instructions below.

  1. Run the NMS software and login to the router.
  2. Click on the Local tab and then DHCP.
  3. Figure 7-1. The DHCP menu

  4. You will need to enter an IP Pool range (the Start and End address is required). This is the range of addresses in which an IP can be assigned to a workstation. An example would be a pool range from 192.168.0.2 to 18 allowing a possible maximum of 16 workstations to be assigned IP's. If you already have a network you can use your current IP address range, otherwise a private C-Class network range will do.
  5. A subnet mask must also be supplied for the IP pool range.

  6. Lease duration is the allotted time an IP address is valid for a particular workstation.
  7. If you have Internet Access set-up, you must enter the Primary and Secondary DNS Search numbers under the IP Configuration section.
  8. The Gateway Address MUST be the router's IP address, which is outside of the IP Address Pool (e.g. for this example the router would be given 192.168.0.1 or >18).
  9. A Domain Name can be entered for your network but is optional.
  10. Click 'Update' to save the settings and 'Refresh' to ensure that the data is correct.
  11. To enable the DHCP Server, click the check box labeled 'DHCP Enable', and select "Update" if not asked to reboot the router.
  12. The DHCP configuration is now complete, you must now change your workstation's network set-up to use the DHCP Server.

    Figure 7-2. Obtain IP address for DHCP

  13. Open Control Panel/Network/TCP-IP Properties for your network card. Under the IP Address tab, click the 'Obtain an IP Address from a DHCP Server' button and then 'OK'. You may be asked to reboot your machine.
  14. Repeat step 10 for every machine on your network utilising the DHCP server.
  15. To check that you that have been assigned an IP address and subnet mask, run either 'WINIPCFG' in Windows 95/98 or 'IPCONFIG' in Windows NT to verify successful assignment.




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Copyright (C) 1999 PLANET Technlogy Corporation