I have a question.

In trying to ensure our site is as tight as required and needed. I
checked our ports using the free Port Checker (Shields UP) at
www.grc.com. This program reported that port 443 (HTTPS) was "OPEN!".

Review of our INETCFG filter exeptions disclosed that the
setup had created a filter as follows:

Source: Public Destination: Private Port Type: Accel-Auth Protocol:
Src Port: <All> Dest Port: 443 Stateful Filtering: Disabled
Src Addr Type: Any Address Dest Addr Type: Host
Dest IP Address: (Our BorderManager's Public IP Address)

The Question(s) - Is this a problem?
What exactly is this used for?