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[NV-L] Monitoring devices through VPN tunnels

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Subject: [NV-L] Monitoring devices through VPN tunnels
From: Mario Behring <mariobehring@yahoo.com>
Date: Wed, 28 Feb 2007 07:55:00 -0800 (PST)
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Hi all,

Any advises on the above subject? I have several devices behind VPN tunnels that I have to monitor for availability as well as configuring events based on MIB variables thresholds......

I am having some difficulties like:
  • some devices (routers mostly) are not being discovered by NV, but they answer ping and snmpwalk commands issued at the command line at the NV server.
  • different clients connected through VPN tunnels have similar IP ranges, so the addresses the NV server actually see are NAT addresses.
How can I work around these isues? Do I have to use CNAT? Is there any special configuration for NV to deal correctly with devices behind VPN tunnels?

Most tunnels are configured through PIX/ASA Cisco devices, and some through routers.

I am running NV 7.1.5 on a Red Hat 4 server.

Thanks in advance.

Best regards,

Mario Behring

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