Linksys EA2750 User Manual page 51

Example: The above examples show that upstream IP addresses are on the 192.168.100.0
network. (The "0" indicates the entire network.) Your upstream network's address may be
different. The default address of your new Linksys router is 192.168.1.1. In setting up one
router behind another, you must make sure that the local network on your new router is
different than the network of your upstream router. In the above example, because the
default local network on your Linksys router 192.168.1.0 is on a different subnet than the
office network's 192.168.100.0, you will be able to place your Linksys router behind the
other router.
2. Connect an Ethernet network cable to a LAN/Ethernet port on your upstream network to the
yellow Internet port on your router.
Caution---- - Connect the upstream network to your router's yellow Internet port, not one of the blue
Ethernet ports. If you connect to an Ethernet port, you create IP addressing problems for the
office network.
Tips---- - An office network often has a wall plate with an Ethernet port that you can connect to.
If you are doing this in a home environment (without wall ports), connect an Ethernet network
cable between a LAN port on your upstream router and the Internet port on your Linksys router.
Computers connected to your new router are now on the same network, and are isolated from the
upstream network. However, you will still have access to the Internet through the upstream router (by
way of your new router). Because two routers are between your computer and the Internet, Internet
traffic undergoes two network address translations. This is sometimes referred to as Double NAT.
Your computers can also use the built-in capabilities of your new router, such as parental controls. If
you need further control over the type of content your employees or family access, you can create an
account with an Internet filtering site such as www.opendns.com or www.bsecure.com. After you
create an account with them, use their DNS in place of your ISP's DNS.
To use an outside DNS:
1. Log into Linksys Smart Wi-Fi. (See ''How to connect to Linksys Smart Wi-Fi'' on page 10.)
2. Under Router Settings, click Connectivity.
3. Click the Local Network tab.
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