A gateway is a network point that acts as an entrance to another network. On the Internet, a node or stopping point can be either a gateway node or a host (end-point) node. Both the computers of Internet users and the computers that serve pages to users are host nodes. The computers that control traffic within your company's network or at your local Internet service provider (ISP) are gateway nodes.
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In the network for an enterprise, a computer server acting as a gateway node is often also acting as a proxy server and a firewall server. A gateway is often associated with both a router, which knows where to direct a given packet of data that arrives at the gateway, and a switch, which furnishes the actual path in and out of the gateway for a given packet.
What are the purchasing criteria for network access control products?
Looking to buy network security tools to keep your gateways secure? Before you do, gain a better understanding of the basics and learn how network security tools have evolved. Also learn the right questions to ask before you buy.
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- SearchNetworking.com offers a list of white papers about various Internet protocols and technologies.
- SearchNetworking.com's Net Admin expert can answer your questions about gateway technologies and protocols.
- This Buyer's Guide examines network security basics, starting with four critical network security tools for any enterprise.