We are a Network Management Service provider, and it has become apparent that we will need to start managing customer networks with duplicate IP subnets - particularly RFC1918 addresses, in addition to managing VPN tunnels.
Is there a method of installing a "proxy" poller that will report back to a centralized management station that we can place in the customer's network, or here that will segment customers networks. The added twist is that we today are using OPENVIEW NNM to populate Desktalk TREND and will be migrating to Concorde in the near future.
Re: Managing duplicate IP Subnets - Service Provider
NNM was not designed to manage duplicate ip addresses for discovered nodes. What some vendors have done is to utilize address translation features of their firewalls to provide a unique IPs viewable to the NNM management station.
This solution, however, creates a problem for snmp polling of the managed nodes since snmp will report a different ip address than ip reports from the firewall.
You will need to disable snmp access to those nodes, but you will still be able to view node status via ip polling (node up/node down status). This provides visibility to VPN at a loss of snmp based features of NNM for the VPN networks.