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Chapter 4
IP Networking
Figure 4-5
IP Address 192.168.1.100
Subnet Mask 255.255.255.0
Default Gateway = 192.168.1.1
IP Address 192.168.2.20
Subnet Mask 255.255.255.0
The destination and subnet mask entries control access to the ONS 15454s:
•
If a single CTC computer is connected to router, enter the complete CTC "host route" IP address as
the destination with a subnet mask of 255.255.255.255.
•
If CTC computers on a subnet are connected to router, enter the destination subnet (in this example,
192.168.1.0) and a subnet mask of 255.255.255.0.
•
If all CTC computers are connected to router, enter a destination of 0.0.0.0 and a subnet mask of
0.0.0.0.
The IP address of router interface B is entered as the next hop, and the cost (number of hops from source
to destination) is 2.
November 2001
Scenario 5: Static route with one CTC computer used as a destination
LAN A
CTC Workstation
Host Routes = N/A
ONS 15454 #2
Default Router = N/A
Static Routes = N/A
Figure 4-6
shows an example.
Router
IP Address of interface "A" to LAN "A" 192.168.1.1
IP Address of interface "B" to LAN "B" 192.168.2.1
Subnet Mask 255.255.255.0
Int "A"
Int "B"
ONS 15454 #1
IP Address 192.168.2.10
Subnet Mask 255.255.255.0
Default Router = 192.168.2.1
Static Routes
Destination 192.168.1.100
Mask 255.255.255.255
Next Hop 192.168.2.1
Cost = 2
SONET RING
Cisco ONS 15454 Installation and Operations Guide
ONS 15454 IP Addressing Scenarios
LAN B
ONS 15454 #3
IP Address 192.168.2.30
Subnet Mask 255.255.255.0
Default Router = N/A
Static Routes = N/A
4-7
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