System information

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AS/400 IBM Network Station: Techniques for Deployment in a WAN
5.7 Twinax IBM Network Station with Local DHCP Server Scenario
This scenario attaches the twinax IBM Network Stations to a local workstation
controller on the AS/400 system. The local workstation controller is CTL01,
which also supports the system console. DHCP is used to configure the
workstation controller with an IP address and to provide the twinax IBM
Network Stations with network start-up information.
A network addressing scheme, that enables Proxy ARP, is implemented. This
will allow the twinax IBM Network Stations to see, and be seen, across the
network.
5.7.1 Scenario Overview
This scenario shows an example of a twinaxial Network Station subnet. The
AS/400 server has connectivity to a token ring LAN.
There is minimal configuration needed on the Network Stations. DHCP
configuration is required on the AS/400 server.
5.7.2 Scenario Objectives
The objectives for this scenario are to:
• Configure the DHCP server, system As1, to support the locally attached
twinax IBM Network Stations.
• Configure and start the twinax IBM Network Stations.
• Ensure LAN connectivity across the network.
5.7.3 Scenario Advantages
The advantages of this scenario include:
• Easy to connect twinax-attached IBM Network Stations to an existing
network
• Easier to configure DHCP to support the twinax attached IBM Network
Stations
• Automatic routing of datagrams from the twinax subnet to the attached
LAN and, vice versa, when using Proxy ARP
5.7.4 Scenario Disadvantages
The disadvantage of this scenario is that an understanding of concepts, such
as subnetting and Proxy ARP, may be required if the network has a somewhat
restricted addressing scheme.