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Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter 4 IP Networking
ONS 15454 IP Addressing Scenarios
• Mask—Enter a subnet mask. If the destination is a host route (i.e., one CTC computer), enter a 32-bit
subnet mask (255.255.255.255). If the destination is a subnet, adjust the subnet mask accordingly,
for example, 255.255.255.0. If the destination is 0.0.0.0, enter a subnet mask of 0.0.0.0 to provide
access to all CTC computers.
• Next Hop—Enter the IP address of the router port (in this example, 192.168.90.1) or the node IP
address if the CTC computer is connected to the node directly.
• Cost—Enter the number of hops between the ONS 15454 and the computer. In this example, the cost
is two, one hop from the ONS 15454 to the router and a second hop from the router to the CTC
workstation.
Step 4 Click OK. Verify that the static route displays in the Static Route window, or ping the node.
4.2.6 Scenario 6: Static Route for Multiple CTCs
Scenario 6 shows a static route used when multiple CTC computers need to access ONS 15454s residing
on the same subnet (Figure 4-7). In this scenario, CTC #1 and #2 and all ONS 15454s are on the same
IP subnet; ONS 15454 #1 and CTC #1 are attached to LAN A. ONS 15454 #2 and CTC #2 are attached
to LAN B. Static routes are added to ONS 15454 #1 pointing to CTC #1, and to ONS 15454 #2 pointing
to CTC #2. The static route is entered from the node’s perspective.
