BUS-TECH 40-01459-D0-001, Installation Manual

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TCP/IP Direct Connect 41
TCP/IP Routing
TCP/IP Direct Connect is a Network Driver Interface Specification (NDIS) compliant
adapter driver. TCP/IP Direct Connect makes the PCI ESCON Adapter appear
exactly like any other Network Interface Card (NIC) to the Windows server. As a
result when TCP/IP Direct Connect and a PCI ESCON Adapter are installed along
with one or more Local Area Network (LAN) adapters the Windows server becomes
a multihomed system.
Microsoft’s Windows 2000 and NT TCP/IP protocol stack is capable of performing
static IP routing in multihomed servers. Static IP routing may be used to route
TCP/IP traffic across the PCI ESCON Adapter to the IBM mainframe. This chapter
discusses how to configure both your network and Windows server to take advantage
of this capability.
Sample Configuration
Figure 5-24. Network with 2 Subnets
Figure 5-24 shows a simple network made up of two sub-networks connected by a
router. A single Windows server is installed on the Token Ring. Windows 95 and /or
98 is installed in all workstations. An IP subnet mask of 255.255.255.192 is being
used to allow for four subnets with IP addresses as follows:
207.168.12.67
207.168.12.4
207.168.12.3
207.168.12.2
207.168.12.1
207.168.12.65
207.168.12.66
207.168.12.68