configuringinternetaccessforanetwork配置internet网络访问.ppt

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2017-09-20 发布于江苏
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configuringinternetaccessforanetwork配置internet网络访问.ppt

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configuringinternetaccessforanetwork配置internet网络访问

Configuring Internet Access for a Network Overview Options for Connecting a Network to the Internet Configuring Internet Access by Using a Router Configuring Internet Access by Using NAT Options for Connecting a Network to the Internet Connecting to the Internet by Using a Router Securing Internet Connections by Using a Firewall Connecting to the Internet by Using NAT Connecting to the Internet by Using Internet Connection Sharing Connecting to the Internet by Using a Proxy Server Comparing Internet Connectivity Options Connecting to the Internet by Using a Router Securing Internet Connections by Using a Firewall Connecting to the Internet by Using NAT Connecting to the Internet by Using Internet Connection Sharing Connecting to the Internet by Using a Proxy Server Comparing Internet Connectivity Options NAT vs. Routing NAT vs. Proxy Server Internet Connection Sharing vs. NAT Configuring Internet Access by Using a Router Configuring Internet Access by Using NAT Installing NAT Configuring NAT Installing the Router Interface for NAT Installing NAT Configuring NAT Installing the Router Interface for NAT Review Options for Connecting a Network to the Internet Configuring Internet Access by Using a Router Configuring Internet Access by Using NAT Connecting Your Network to the Internet by Using a Router: Optimizes network performance Enables all users in your network to share a single connection to the Internet Is the easiest method for connecting your network to the Internet Router Internet Intranet Securing Internet Connections by Using a Firewall: Prevents unauthorized access to your network Enables you to specify the type of traffic that is allowed into and out of your network Intranet Internet Router Firewall Client Computers IP = 192.168.1.3 IP = 192.168.1.4 IP = 192.168.1.5 Computer Running NATInternal IP = 192.168.1.1External IP = 131.107.2.1 The client sends the packet to the computer running NAT The computer running NAT determines the destination, changes