12-29
Cisco ONS 15454 SDH Reference Manual, R5.0
April 2008
Chapter12 CTC Network Connectivity
12.6 Open GNE
Figure 12-19 shows a remote node connected to an ENE Ethernet port. Proxy and firewall tunnels are useful in this example because the GNE would otherwise block I P access between the PC and foreign node. This configuration also requires a firewall tunnel on the EN E.
Figure12-19 Foreign Node Connection to an ENE Ethernet Port
Remote CTC
10.10.20.10
10.10.20.0/24
10.10.10.0/24
Interface 0/0
10.10.20.1
Router A
Interface 0/1
10.10.10.1
ONS 15454 SDH
Gateway NE
10.10.10.100/24
ONS 15454 SDH
External NE
10.10.10.250/24
ONS 15454 SDH
External NE
10.10.10.150/24
ONS 15454 SDH
External NE
10.10.10.200/24
115760
Local/Craft CTC
192.168.20.20
Ethernet
SDH
Non-ONS node
Foreign NE
130.94.122.199/28