Fast EtherHub 3500 System User’s Guide
3-14 Setting Up Network Connections
Operating in the TCP/IP Environment
In TCP/IP Internet environment, gateways are used to improve
performance and regulate network traffic by confining most
network activity to their respective local network, and still
maintain communication links among LANs of the same or
different architectures. You can implement an IP subnet
gateway if you have an IP network address (e.g., 140.20.0.0).
For example, in a Fast EtherHub 3500 system (as shown in the
figure below), you can attach three LAN adapters to your
subnet gateway using a UNIX server. Perform the following
steps.
Assign IP addresses from 140.20.1.1 ~ 140.20.1.254 to nodes on
segment 1, and set their subnet mask to 255.255.255.0.
Assign IP addresses from 140.20.2.1 ~ 140.20.2.254 to nodes on
segment 3, and set their subnet mask to 255.255.255.0.
Assign IP addresses from 140.20.3.1 ~ 140.20.3.254 to nodes on
segment 2, and set their subnet mask to 255.255.255.0.
Assign IP address 140.20.1.10 to the first adapter, 140.20.2.20 to the
second adapter, and 140.20.3.30 to the third one.
SEGMENT 1
SEGMENT 1
SEGMENT 1
SEGMENT 2
SEGMENT 2
SEGMENT 3
SEGMENT 3
SEGMENT 2
SEGMENT 3
NOVELL NetWare Server,
Unix Server(e.g., SCO Unix)
IP = 140.20.1.10
IP = 140.20.2.20
IP =140.20.3.30
EtherHub 3500 Agent
EtherHub 3500 Hub
EtherHub 3500 Hub
EtherHub 3500 Hub
EtherHub 3500 Hub
EtherHub 3500 Hub
SubnetMask = 255.255.255.0 for all seg ments
Figure 3-10 System Applied in TCP/IP Environment