E-8 User’s Reference Guide
and server.
MacIP Serving
Macintosh Workstation (MacTCP or Open Transport):
Once the Mac workstation requests and receives a valid address, the Netopia R3100 will actively check for the workstation’s existence once every minute.
■For a DYNAMIC address, the Netopia R3100 will release the address back to the address pool after it has lost contact with the Mac workstation for over 2 minutes.
■For a STATIC address, the Netopia R3100 will release the address back to the address pool after it has lost contact with the Mac workstation for over 20 minutes.
Netopia R3100 MacIP Server Characteristics
The Mac workstation uses ATP to both request and receive an address from the Netopia R3100's MacIP server. Once acquired, NBP confirm packets will be sent out every minute from the Netopia R3100 to the Mac workstation.
Manually distributing IP addresses
If you choose to manually distribute IP addresses, you must enter each computer’s address into its TCP/IP stack software. Once you manually issue an address to a computer, it possesses that address until you manually remove it. That’s why manually distributed addresses are sometimes called static addresses.
Static addresses are useful in cases when you want to make sure that a host on your network cannot have its address taken away by the address server. A network administrator’s computer, a computer dedicated to communicating with the Internet, and routers are appropriate candidates for a static address.
Using address serving
The Netopia R3100 provides two ways to serve IP addresses to computers on a network. The first, Dynamic Host Configuration Protocol (DHCP), is supported by PCs with Microsoft Windows and a TCP/IP stack. Macintosh computers using Open Transport and computers using the UNIX operating system may also be able to use DHCP. The second way, MacIP, is for Macintosh computers.
The Netopia R3100 can use both DHCP and MacIP. Whether you use one or both will depend on your particular networking environment. If that environment includes both PCs and Macintosh computers that do not use Open Transport, you will need to use both DHCP and MacIP to distribute IP addresses to all of your computers.
Tips and rules for distributing IP addresses
■Before you allocate IP addresses using DHCP and MacIP, consider whether you need to set aside any static addresses.
■Note any planned and currently used static addresses before you use DHCP and MacIP.
■Avoid fragmenting your block of IP addresses. For example, try to use a continuous range for the static addresses you choose.
