Motorola NVG510 User Manual download pdf (Page 20)

Go to the Supplementary Network section near the bottom of the page.

The

Add Additional Network box for Enable should be checked.

The Router Address will be one of the available IPs from the Static / Public block issued. Typically this would

be the next to the last IP in the block but the 2

one is another common one. The Subnet Mask should be set

to 255.255.255.x where x depends on the amount of IP addresses you have. Start with 255 and subtract the

number of IP addresses in your block and that will be the subnet value for x. For example 8 IPs would be

248

The Auto Firewall Open box should be checked. This in particular applies to connection requests generated

by devices on the LAN and using one of the Static IP addresses. Rules should still be made for connection

requests or traffic originating on the WAN / Internet side of things. We will cover how that works later.

Page 20

Some devices and firmware also support Cascaded Router.

This option allows the RG to route the entire Public IP block over to a particular device or IP address. Think of it as a next hop

situation. In this mode the RG does not reserve one of the Public IP addresses for a virtual interface, instead it is configured to

route any IP addresses in the configured block over to the specific device or private IP address. The destination router then

would use, hand out via DHCP and route the Public IP block.

To enable Cascaded Router place a check in the Enable box next to it. Then add in the Public IP block in the Network

Address and the Subnet Mask. Then choose the radio button for either the device and select the device in the drop down

menu or select and enter the IP private IP address of the device you will route to.

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Motorola NVG510 User Manual Page 20