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Cisco ONS 15454 DWDM Installation and Operations Guide, R6.0
August 2005
Chapter 22 Management Connectivity Reference
22.2.5 Scenario 5: Using Static Routes to Connect to LANs
Figure 22-5 Scenario 4: Default Gateway on a CTC Computer (ANSI and ETSI)
22.2.5 Scenario 5: Using Static Routes to Connect to LANs
Static routes are used for two purposes:
• To connect ONS 15454s to CTC sessions on one subnet connected by a router to ONS 15454s
residing on another subnet. (These static routes are not needed if OSPF is enabled. Scenario 6 shows
an OSPF example.)
• To enable multiple CTC sessions among ONS 15454s residing on the same subnet.
In Figure 22-6, one CTC residing on subnet 192.168.1.0 connects to a router through interface A (the
router is not set up with OSPF). ONS 15454s residing on different subnets are connected through Node
1 to the router through interface B. Because Nodes 2 and 3 are on different subnets, proxy ARP does not
enable Node 1 as a gateway. To connect to CTC computers on LAN A, a static route is created on
Node 1.
ONS 15454 #1
IP Address 192.168.1.10
Subnet Mask 255.255.255.0
Default Router = N/A
Static Routes = N/A
CTC Workstation
IP Address 192.168.1.100
Subnet Mask at CTC Workstation 255.255.255.0
Default Gateway = 192.168.1.10
Host Routes = N/A
ONS 15454 #2
IP Address 192.168.2.20
Subnet Mask 255.255.255.0
Default Router = N/A
Static Routes = N/A
ONS 15454 #3
IP Address 192.168.3.30
Subnet Mask 255.255.255.0
Default Router = N/A
Static Routes = N/A
LAN A
Ring
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