Cisco Systems EA3500 manual How to expose a device to the Internet, To extend your network

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Linksys EA-Series

To extend your network

This topic covers cases three and four above.

Note

This is a complex process, so this procedure assumes that you have some networking knowledge.

To extend your network or add wireless capabilities:

1.If you want to extend your network, you may also follow the instructions above. One example of this might be to provide a separate wireless network for your children to keep their wireless network traffic separate from your wireless network. You might also want to isolate one network from another network so that network shares aren’t visible across networks. In this case, use an Ethernet cable to connect the Internet port of the downstream router to one of the LAN ports of the upstream router. Make sure that the local network subnets on the two routers are different.

- OR -

You can extend your network by turning the downstream router into an access point. (See “How to use a router as an access point” on page 35). When you use a router as an access point, computers connected to the access point are on the same IP subnet as all other devices connected to the router. File, printer, and media sharing is much easier if all devices are on the same subnet.

Setting Up: Advanced

How to expose a device to the Internet

Why would I expose a device to the Internet? If you are operating a web server, a mail server, or a web camera, you may want to expose that device to the Internet so anybody can access it. Your router includes a DMZ (Demilitarized Zone) feature that forwards all inbound ports presented on the WAN interface, except those that are specifically forwarded, to an individual IP address or MAC address. This feature is normally not used, because it presents significant security risks to the device that you designate for the DMZ. The DMZ device is not protected by the built-in firewalls, Internet filters, or router web filters, and is open to attacks from hackers.

A much safer way of “exposing” devices to the Internet would be to use port forwarding. See “How to set up port forwarding” on page 48.

To set up a device in the DMZ:

1.Configure your device with a static IP address. See your device’s documentation for help with setting a static IP address or use DHCP reservation (see “How to set up the DHCP server on your router” on page 28).

2.Log into Cisco Connect Cloud. (See “How to configure your router” on page 11.

3.Under Router Settings, click Security, then click the DMZ tab.

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Contents User Guide Contents Specifications Product Overview Package contentsFeatures EA2700Port activity indicator Back viewBottom view EA3500 SpeedBoostPort activity indicators Product Overview EA4500 Built-in USB port and Dlna media serverTop view Product Overview Where to find more help Setting Up BasicsHow to create a home network What is a network?How to install your router Setting Up BasicsHow to configure your router How to connect to Cisco Connect CloudHow to disable remote access How to connect directly to your router How to improve your wireless connection speedTo change your router’s name and password How to change your network’s name and passwordHow to change your router’s local access password Under Router Settings, click WirelessTo set your router’s time zone How to test your Internet connection speedHow to change your router’s time zone To test your Internet connection speedHow to connect a USB printer How to connect devices to your networkHow to connect a computer to your network To connect a computer to your networkHow to connect other devices How to manually connect a network deviceHow to connect a network device using Wi-Fi Protected Setup How to view device details To view network device detailsHow to set up parental controls How to set parental controlsTo set parental controls How to configure your guest network Under Block specific sites, click AddHow to back up your router configuration To set up guest access to your networkHow to customize Cisco Connect Cloud Using widgetsCustomizing the Device List How to manually set up your Internet connection Setting Up AdvancedHow to manually set up your router How to configure basic Internet connection settingsIPv6 Internet connection settings To manually configure your router’s IPv6 settingsHow to get the most out of your dual- band router To reconfigure your wireless networkHow to control access to your network Wireless-N Only 802.11n onlyAuto 20 MHz or 40 Mhz MHz Only Linksys EA-Series To change your firewall settings How to improve security using the built-in firewallChanging firewall settings VPN PassthroughTo set IPv6 firewall settings How to set up the Dhcp server on your routerChanging IPv6 firewall settings To configure your router’s Dhcp server settingsHow to set up Dhcp reservation To configure Dhcp reservationHow to access your network on the Internet To set up DdnsHappyBunny.linksysnet.com1024 Click the Internet Settings tab How to clone a MAC addressHow to connect to your corporate office using a VPN To change your VPN passthrough settingsHow to optimize your router for gaming and voice To configure media prioritizationHow to enable Voice over IP on your network Set the maximum Upstream BandwidthHow to configure UPnP To configure the router for VoIPTo configure UPnP How to use a router as an access point To view your new router’s settingsHow to put your new router behind an existing router To add your router to your existing wireless networkTo add your router to an existing router or gateway To share an Internet connection To add another router to share an Internet connectionTips To use their DNSTo set up a device in the DMZ How to expose a device to the InternetTo extend your network or add wireless capabilities To extend your networkSetting Up Advanced Using an External Drive How to attach a USB driveOverview How to use secured folder access How to set up authorized users and shared foldersTo enable access to shared folders How to access shared folders To access shared folders while on your networkClick Add User How to set up your router as a media server To configure your router as a media serverHow to connect your UPnP device to the media server To connect an UPnP device to your router’s media serverHow to remotely access storage To set up the FTP serverLinksys EA-Series To set up single port forwarding How to set up port forwardingHow to set up port forwarding for a single port Port Forwarding and Port TriggeringHow to set up port forwarding for multiple ports How to set up port forwarding for a range of portsTo set up single port forwarding for multiple ports How to set up port range triggering for online gaming To set up port range forwardingClick Add a new Port Range Forwarding Click Add a new Port Range Triggering Under Router Settings, click Troubleshooting How to back up and restore your router configurationTo back up your router configuration To restore your router configurationTo upgrade the router’s firmware How to upgrade the router’s firmwareHow to restore factory defaults Under Firmware Update, click Check for UpdatesHow to check the status of your router Under Factory reset, click ResetHow to disable the Ethernet port status lights How to test your Internet connectionTo disable the lights How to configure and use logs To enable and view logsYour router was not successfully set up TroubleshootingDuring setup Windows XP Service Pack updateTo fix the problem To fix the problem on Windows computersClick the wireless network BronzeEagle in the example To reboot your router using the power cord After setupRebooting your router To reboot your router using Cisco Connect CloudYou cannot access Cisco Connect Cloud All other troubleshooting has been unsuccessfulCisco Connect Cloud does not open in your web browser Specifications Linksys EA2700Environmental Specifications Linksys EA3500Linksys EA4500 3425-00125A
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