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intro-Routing240
intro-Routing240

... Support multiple types of services Interoperate with different technologies Allow distributed management Be cost effective (ie sharing) Be easily extendible Resources and entities must be accountable (for security purpose) ...
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... If previous packet(s) were lost, you also lose current packet If packets are sent out of order can result in loss where there was none Result is poor performance on lossy networks (like the Internet) Ability to decrypt a packet does not depend on previous packet(s) Method of choice for use over the ...
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... o an external IP Address  Internet o and several internal IP Addresses to local devices, e.g., computers, printers which creates a physical firewall to the outside world. The router security must be modified to allow particular trusted external sites to access the system. The internal IP Addresses ...
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... This report has been prepared by Dell™ SonicWALL™ Laboratories for three reasons. First, to give you a general understanding of the threats your network, and your business faces today. Second, to give you an understanding of how a Cisco PIX 515E like yours performed when tested at Dell SonicWALL Lab ...
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... Waits for network to form connection Leaves connection in place while sending data Terminates connection when no longer needed ...
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Distributed firewall

A firewall is a system or group of systems (router, proxy, or gateway) that implements a set of security rules to enforce access control between two networks to protect ""inside"" network from ""outside"" network. It may be a hardware device or a software program running on a secure host computer. In either case, it must have at least two network interfaces, one for the network it is intended to protect, and one for the network it is exposed to. A firewall sits at the junction point or gateway between the two networks, usually a private network and a public network such as the Internet.
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