Intel 8205 quick start Select a Scenario

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Select a Scenario

2 Select a Scenario

This guide describes four scenarios in which you can connect the router to the Internet through a DSL or cable modem.

Scenario 1: Router is the DHCP Server

In this scenario, the LAN PCs are config- ured as DHCP clients, and you do not need to do any configuration other than installing the router and connecting cables. As long as the PCs on your LAN request IP configura- tion from a DHCP server, the router assigns

 

LAN 1 port connects

 

 

to the local network, and the

 

 

router’s DHCP server assigns

 

 

IP addresses to the LAN

 

PC

Intel® Router

 

 

 

 

Intel Router

ISP

PC

xDSL/cable

 

modem

 

 

 

LAN 2 port gets dynamic

 

IP address from ISP

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Figure 3. Scenario 1 - LAN PCs Get IP Address from Router’s DHCP Server. You can access the Internet through your DSL or cable modem once you have connected the router cables. See page 4 for information.

a preset range of IP addresses to your LAN. See page 4.

About scenarios 2, 3, and 4

Before configuring the router for these scenarios, you must install Intel® Device View as described on page 5.

Scenario 2: Cable Modem

In this scenario, as shown in Figure 8 on page 6, you connect the LAN 2 port to a

PC

PC

DHCP Server

LAN 1 port connects to the local network

Intel® Router

Intel Router

 

ISP

 

xDSL/cable

 

 

modem

 

 

LAN 2 port gets dynamic

 

IP address from ISP

7069

Existing DHCP

 

 

server assigns

 

 

LAN IP addresses

 

 

cable modem. Your ISP (Internet service provider) provides a dynamic IP address and a name to identify the router, which you must configure. See page 6.

Figure 4. Scenario 3 - Existing DHCP Server on

LAN. For instructions on setting up this scenario, see page 7.

Scenario 3: Existing DHCP Server

In this scenario, your LAN uses an existing DHCP server. You must change the router’s default LAN 1 IP address and disable the router’s DHCP server. See page 7.

Scenario 4: Static IP from ISP

In this scenario, the LAN 2 port uses a static (permanent) IP address assigned by the ISP each time the modem connects to the Internet. You can also configure the router to allow access to internal servers on the

PC

PC

E-mail Server

LAN 1 port connects to the local network

Intel® Router

xDSL/cable modem

LAN 2 port gets static IP address from ISP

Internet users must be able to access this internal e-mail server

ISP/

Internet

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local network from the Internet (such as an e-mail or Web server). See page 9.

Figure 5. Scenario 4 - Static IP Address on

LAN 2. For instructions on setting up this scenario, see page 9.

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Contents Intel Express 8205 and 8205 with VPN Routers First Edition October A43586-001 Contents Connect the power Install the Router HardwareConnect the LAN 1 port to your local network Connect the LAN 2 port to your DSL or cable modemSelect a Scenario To reset the router to factory defaults Parameter SettingScenario Descriptions LAN PCs Get IP Address from Dhcp Server on RouterInstall Intel Device View Install Intel Device View for Scenarios 2, 3,Firewall Filters and NAT for Scenarios 2, 3, and 4 See For non-Windows* operating systemsFirewall filtering and local servers Connecting to a Cable ModemConnect a PC directly to the Router Disable the Dhcp server on the routerExisting Dhcp Server on Change the LAN 1 IP address Restore your network connectionsConfigure a static IP address on LAN Static IP Address from ISP and Server Access on LANFirewall Filters and NAT Access internal servers from the InternetFirewall Filtering and NAT for Servers on the LAN Create firewall filters for LAN usersSetting up a VPN Tunnel Using the VPN OptionTo add a VPN tunnel For more information about VPN tunnelsVPN Tunnel Example Change the default IP address on LANStart the VPN Tunnel Wizard Branch Office SettingChange the range of IP addresses used by the Dhcp server Firewalls and network address translation Connecting Two Branch OfficesVPN Tunnel Worksheet