Chapter 2 - IP Routing & Bridging | 33 |
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•If checked, then you must set an IP Address, Subnet Mask, and Broad- cast Address (as described below) for this VPN port. The default is unchecked.
IP Address
If you wish to assign an IP address, it must be unique. 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
There are three generally used “classes” of subnetted IP networks: A, B and C. Each class uses a different amount of the IP address for the network and host portions. These classes may also be further divided by correctly setting the subnet mask.
If you do not enter a number in the Subnet Mask field, CompatiView will derive a default value from the IP Address number you entered just above. This default assumes you want a single subnet for all of the available host addresses. You must manually set the field if you want to further divide the address range.
To have CompatiView calculate a default mask, make sure that the Subnet Mask field is empty, (re)position the cursor in the IP Address field, then just tab through the Subnet Mask field.
Network IP Broadcast Address
The standard broadcast address is all 255’s (hexadecimal FFs) in the host portion of the address. A few networks use all zeroes in this field. If you are unsure which type your network uses, check with your network administrator.
To have CompatiView calculate a default broadcast address, make sure that the Broadcast Address field is empty, (re)position the cursor in the Subnet Mask field, then just tab through the Broadcast Address field.
