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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 4 IP Networking
ONS 15454 IP Addressing Scenarios
Figure 4-1 Scenario 1: CTC and ONS 15454s on same subnet
4.2.2 Scenario 2: CTC and ONS 15454s Connected to Router
In Scenario 2 the CTC computer resides on a subnet (192.168.1.0) and attaches to LAN A (Figure 4-2).
The ONS 15454s reside on a different subnet (192.168.2.0) and attach to LAN B. A router connects LAN
A to LAN B. The IP address of router interface A is set to LAN A (192.168.1.1), and the IP address of
router interface B is set to LAN B (192.168.2.1).
On the CTC computer, the default gateway is set to router interface A. If the LAN uses DHCP (Dynamic
Host Configuration Protocol), the default gateway and IP address are assigned automatically. In the
Figure 4-2 example, a DHCP server is not available.
CTC Workstation
IP Address 192.168.1.100
Subnet Mask 255.255.255.0
Default Gateway = N/A
Host Routes = N/A
ONS 15454 #1
IP Address 192.168.1.10
Subnet Mask 255.255.255.0
Default Router = N/A
Static Routes = N/A
ONS 15454 #2
IP Address 192.168.1.20
Subnet Mask 255.255.255.0
Default Router = N/A
Static Routes = N/A
ONS 15454 #3
IP Address 192.168.1.30
Subnet Mask 255.255.255.0
Default Router = N/A
Static Routes = N/A
LAN A
SONET RING
33157