Monitor system with something else then PING?!?

Is the carrier also logging the firewall or are they logging a NTU or router? Are there logs on this firewall that indicate that the link was dropped?

Flaps may be missed when only pinging once every 10 seconds. If you are having issues with this firewall, the download a copy of ping plotter and see if it drops any pings.

no, the carrier is not monitoring.

Our IPSEC VPN, goes down several times a week and we are trying to pin point who's responsible and why this is happening.

I will try ping plotter.

But is there another way to do this with Solarwinds?

Our instance of Solarwinds only has 1 server which includes the poller and is located at a datacenter. We do not have a distributed poller architecture, so the ping source is only from 1 place. If pings are dropped, it could be due to a carrier in between the datacenter and remote site. So i'm wondering, if setting up a poller at another remote site that uses a totaly seperate route via the internet to reach the said site, what do we need?  Is a remote poller license required?

A remote poller license would be required if you are going to setup a remote poller.  Other than that, the only other options you'd have is telling SolarWinds to just use SNMP for the status (if you are on NPM 11).  Another option would be to use a Toolset tool on a different machine, if you have Engineer's Toolset.