Fatcat — firewall testing tool

At my work, I constantly have to do firewall testing between our hosts (our production network is managed by a vendor who also manages our physical production servers inside Equinix datacenters)

There are cases where we cannot connect within our network to certain ports, or certain port ranges

I’ve been looking for a network testing tool that can open up a range of ports on one host, and then test that range from another host.

The usual network testing tools all lack some part of this basic requirement