Figure 9-9 Proxy Server Gateway Settings - Cisco ONS 15600 Reference Manual

9.2.7 Scenario 7: Provisioning the ONS 15600 SDH Proxy Server
If you launch CTC against a node through a Network Address Translation (NAT) or Port Address
Note
Translation (PAT) router and that node does not have proxy enabled, your CTC session starts and initially
appears to be fine. However CTC never receives alarm updates and disconnects and reconnects every two
minutes. If the proxy is accidentally disabled, it is still possible to enable the proxy during a reconnect
cycle and recover your ability to manage the node, even through a NAT/PAT firewall.
ENEs that belong to different private subnetworks do not need to have unique IP addresses. Two ENEs
Note
that are connected to different GNEs can have the same IP address. However, ENEs that connect to the
same GNE must always have unique IP addresses.
Figure 9-9
Cisco ONS 15600 SDH Reference Manual, Release 9.0
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Proxy Server Gateway Settings
Chapter 9 Management Network Connectivity
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