Networking Guide
Chapter 4, Administering SCO IPX/SPX

File server addressing

File server addressing

Value-added servers, such as database and print servers, normally contain only one network adapter and use the address of that adapter as the address they advertise in their periodic SAP broadcasts. In contrast, NetWare file servers may contain multiple adapters. This requires that they use some sort of convention for advertising the address of their file services; the convention used for this addressing differs for 286- and 386-based servers.

Within the 286-based environment, the services of a file server are addressed with respect to its first NIC, A. This convention guarantees consistency because every server will have at least one network adapter installed. Figure 4-14 illustrates this convention. 

Figure 4-14 Addressing of file services on a 286-based NetWare file server


In the NetWare 386-based servers, an internal network has been added for the addressing of internal services, as shown in Figure 4-15. This different method of addressing requires that an internal network number be assigned when a NetWare 386-based file server is brought up. SCO IPX/SPX requires an internal network number. 

Figure 4-15 Addressing of file services on a 386-based NetWare file server

NetWare 386-based servers can be distinguished by a node number of one. This node number is assigned to the file services on the internal network number.