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This is from my firewall:<br />
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1) &nbsp;192.168.50.80 &nbsp; &nbsp;64608 &nbsp; &nbsp; 68.212.224.222 &nbsp; &nbsp;5 &nbsp; &nbsp; &nbsp;GRE &nbsp; &nbsp; LAN &nbsp; &nbsp; WAN <br />
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192.168.50.80 is RRAS server on the internal network<br />
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This should be return trafic from incoming VPN.<br />
It uses GRE protocol. Could you please explain what is the function of GRE protocol (in PPTP connection)?<br />
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What the destination address 68.212.224.222 suposed to do with this GRE packets?
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This is from my firewall:

1)  192.168.50.80    64608     68.212.224.222    5      GRE     LAN     WAN 

192.168.50.80 is RRAS server on the internal network


This should be return trafic from incoming VPN.
It uses GRE protocol. Could you please explain what is the function of GRE protocol (in PPTP connection)?

What the destination address 68.212.224.222 suposed to do with this GRE packets?

Firewall log explanation help needed. GRE protocol and VPN traffic

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

Networking

Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.

Hardware Firewalls

Network analysis is the process of identifying and remediating the processes and systems within a network, including performance, connectivity and security. The process is performed through the use of tools developed for monitoring and analyzing network activity. Network problems that involve finding an optimal way of doing something are studied under the name combinatorial optimization. Examples include network flow, shortest path problem, transport problem, transshipment problem, location problem, matching problem, assignment problem, packing problem, routing problem, Critical Path Analysis and PERT (Program Evaluation & Review Technique).