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Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter12 CTC Network Connectivity
12.2.9 Scenario 9: IP Addressing with Secure Mode Enabled
Figure 12-15 shows a network with dual GNEs on different subnets.
Figure 12-15 Scenario 8: Dual GNEs on Different Subnets
12.2.9 Scenario 9: IP Addressing with Secure Mode Enabled
TCC2/TCC2P cards provide a secure mode option allowing you to provision two IP addresses for the
ONS 15454. One IP address is provisioned for the ONS 15454 SDH MIC-C/T/P LAN port. The other IP
address is provisioned for the TCC2/TCC2P TCP/IP craft port. The two IP addresses provide an
additional layer of separation between the craft access por t and the ONS 15454 SDH LAN. If secure
mode is enabled, the IP addresses provisioned for the TCC2/TCC2P TCP/IP po rts must follow general
IP addressing guidelines. In addition, TCC2/TCC2P IP addresses must reside on a different subnet from
the ONS 15454 SDH MIC-C/T/P port and ONS 15454 SDH default router IP addresses.
The IP address assigned to the MIC-C/T/P LAN port becomes a private address, which is used to connect
the ONS 15454 SDH GNE to an OSS (Operations Support System) throug h a central office LAN or
private enterprise network. In secure mode, the MIC-C/T/P LAN IP address is not displayed on the CTC
node view or to a technician directly connected to the node by default. This default can be changed to
allow the MIC-C/T/P IP address to be displayed on CTC only by a Superuser.
115277
Remote CTC
10.10.20.10
10.10.20.0/24
10.10.10.0/24 10.20.10.0/24
Interface 0/0
10.10.20.1
Router A
Interface 0/1
10.10.10.1
Interface 0/2
10.20.10.1
ONS 15454 SDH
10.10.10.100/24
ONS 15454 SDH
192.168.10.250/24
ONS 15454 SDH
10.20.10.100/24
ONS 15454 SDH
192.168.10.200/24
Local/Craft CTC
192.168.20.20
Ethernet
SDH