firewall

[vagirotti]

When a router is acting as a firewall. What type technique of packet inspection is used? When a router is acting as a firewall it can use a technique that monitors all current TCP sessions and allows only the traffic that is requested from the inside the netwrk for the open session.
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[zippo]

what do you mean? do you want to know which ports you need to open on your firewall?
if this is so you need only the gateway port which is set to 80 by default. then ensure you connect in gateway mode.
if you need a higher level of security enable ssl which uses port 443.