GE GFK-1541B manual Example Network Divided into Two Subnets, Gateway

6

Example: Network Divided into Two Subnets

The new network configuration dividing Network 2 into Subnets 2.1 and 2.2 is shown below.

A

172.16.0.1

Network 1 172.16.0.2

G1 Gateway

B C

172.17.64.3

172.17.64.1172.17.64.2 (Sub)Network 2.1 172.17.64.4

				G2		Gateway
D		E
					172.17.128.3
	172.17.128.1		172.17.128.2

(Sub)Network 2.2

Here, a second network with Hosts D and E has been added. Gateway G2 connects Subnet 2.1 with Subnet 2.2. Hosts D and E will use Gateway G2 to communicate with hosts not on Network 2.2.

Hosts B and C will use Gateways G1 and G2 to communicate with hosts not on Network 2.1. When B is communicating with D, G2 (the configured Gateway for B) will route the data from B to D through Gateway G2.

Host A will use Gateway G1 to communicate with hosts not on Network 1.

6-6 TCP/IP Ethernet Communications for the Series 90™ PLC User's Manual– May 2002 GFK-1541B