Chapter 2 - IP Routing & Bridging | 39 |
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This address should be entered as four decimal numbers separated by periods
ϖ Note: 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, position the cursor in the IP Address field, then just tab through the Subnet Mask field.
>Network IP Broadcast Address
The device will use this address to send any IP broadcast messages. The stan- dard 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, position the cursor in the Subnet Mask field, then just tab through the Broadcast Address field.
>Routing Protocol
Routers pass information between themselves about the most effective path for packet transfer between various end points. There are a number of different protocols which have been defined to facilitate the exchange of this information.
Routing Information Protocol (RIP) 1 is the most widely used routing protocol on IP networks. All gateways and routers that support RIP 1 period-
