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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
August 2005
Chapter 22 Management Connectivity Reference
22.2.2 Scenario 2: CTC and ONS 15454s Connected to a Router
Figure 22-1 Scenario 1: CTC and ONS 15454s on Same Subnet (ANSI and ETSI)
22.2.2 Scenario 2: CTC and ONS 15454s Connected to a Router
In Scenario 2, the CTC computer resides on a subnet (192.168.1.0) and attaches to LAN A (Figure 22-2).
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). The routers each have a subnet mask of 255.255.255.0.
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 22-2 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
Ring
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