TCP/IP

TCP/IP has been enhanced for NetWare Link/Frame Relay support. TCP/IP uses Inverse ARP (Address Resolution Protocol) to learn the IP address of the remote node on a frame relay link. You can use the Novell Internet Access Server Configuration utility (NIASCFG) to interstatically configure IP addresses to WAN call destination mappings.

When TCP/IP is bound to a WAN board, it is notified of all configured PVCs. TCP/IP attempts to associate an IP address with the remote node of each PVC. First, TCP/IP uses any configured IP address-to-WAN call destination mappings. If no mapping exists for a PVC, TCP/IP uses Inverse ARP to learn the IP address of the remote node. If both nodes on a frame relay PVC use Inverse ARP, you do not need to map IP addresses to NetWare Link/Frame Relay WAN call destinations.

If required, you can use NIASCFG to configure IP address-to-WAN call destination mappings, as follows:

• Use the Protocols Binding option from the Internetworking Configuration menu to select TCP/IP.
• In the TCP/IP Configuration screen, enable the WAN call destination database, and use the WAN Call Destination configuration screen to map the IP address to the NetWare Link/Frame Relay WAN call destination.

TCP/IP allows one or more IP addresses to be associated with a NetWare Link/Frame Relay interface. If PVCs have been configured between all nodes that must communicate over a frame relay network, only a single IP address is usually required. You should give each node an IP address on the same IP network. If all nodes are not connected with PVCs, you can associate a different network with each group of two or more nodes that are interconnected with PVCs.