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Frame relay is high-speed data communication technology that operates at the physical and data link layers of the OSI model.Frame relay uses frames for data transmission in a network.
VPN or virtual private network is used to connect two networks by means internet. VPN uses PPTP (point-to-point tunneling protocol) and other security procedures to make a secure tunnel on internet.
RAS or remote access server allows you to remote dial in through the desktop computers, laptops, and GSM mobile phones.
Frame relay is high-speed data communication technology that operates at the physical and data link layers of the OSI model. Frame relay uses frames for data transmission in a network.
Packet filter is a standard router equipped with some extra functionality. The extra functionality allows every incoming or outgoing packet to be inspected. Packets meeting some criterion are forwarded normally. Those that fail the test are dropped.
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