4-4

Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter4 IP Networking
ONS 15454 IP Addressing Scenarios
Figure4-2 Scenario 2: CTC and ONS 15454s connected to router
4.2.3 Scenario 3: Using Proxy ARP to Enable an ONS 15454 Gateway

Scenario 3 is similar to Scenario 1, but only one ONS 15454 (node #1) connects to the LAN (Figure 4-3).

Two ONS 15454s (#2 and #3) connect to ONS 15454 #1 through the SONET D CC. Be cau se all th ree

ONS 15454s are on the same subnet, Proxy ARP enables ONS 15454 #1 to serve as a gateway for ONS

15454s #2 and #3.

CTC Workstation
IP Address 192.168.1.100
Subnet Mask 255.255.255.0
Default Gateway = 192.168.1.1
Host Routes = N/A
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
Default Router = N/A
Host Routes = N/A
ONS 15454 #1
IP Address 192.168.2.10
Subnet Mask 255.255.255.0
Default Router = 192.168.2.1
Static Routes = N/A
ONS 15454 #2
IP Address 192.168.2.20
Subnet Mask 255.255.255.0
Default Router = 192.168.2.1
Static Routes = N/A
ONS 15454 #3
IP Address 192.168.2.30
Subnet Mask 255.255.255.0
Default Router = 192.168.2.1
Static Routes = N/A
LAN B
LAN A
Int "A"
Int "B"
SONET RING
33158