Chapter 2 - IP Routing & Bridging | 27 |
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ϖNote: The IP Bridging radio button will be grayed out unless bridging has been turned on globally for the device using the Main Bridging Configuration Dialog Box (under Global/Bridging) and locally on this interface using the Bridging: WAN Dialog Box (under WAN/Bridging).
•If set to IP Off, then any IP packets received on this interface are discarded.
>Numbered Interface
This check box determines whether the Wide Area Network connected to this interface will have an IP network number associated with it.
Many WAN connections are simple
In contrast, Frame Relay networks may have a number of participating routers connected through a single physical interface. Because of this, use of the Frame Relay transport protocol requires a numbered WAN interface.
•If checked, then you must set an IP Address, Subnet Mask, and Broad- cast Address (as described below) for this WAN interface. The default is unchecked.
ϖNote: If you are connecting the router to an Internet Service Provider using PPP, you may be required to use a numbered interface. Check with their tech support staff.
IP Address
Every network interface on an IP internetwork must have a unique IP address that identifies that interface to other devices on the internetwork. Part of this address identifies the network segment the router interface is connected to, and the remainder uniquely identifies the router interface itself.
This address should be entered as four decimal numbers separated by periods
ϖNote: The single most common problem encountered in IP networking is the use of a duplicate IP address. You must carefully track the network numbers you have assigned to various devices in order to avoid
Network IP Subnet Mask
Most IP networks use “subnetting” in order to subdivide a large network into smaller logical