56CHAPTER 4: PROBLEM SOLVING

The IP address is split into two parts:

The first part (‘192.168.100’ in the example) identifies the network on which the device resides

The second part (‘.8’ in the example) identifies the device within the network

 

The natural subnet mask for this example is 255.255.255.0.

 

If your network has a connection to the external IP network, that is, you

 

access the Internet, you must apply for a registered IP address.

 

How do you obtain a registered IP Address?

 

The IP registration system ensures that every IP address used is unique; if

 

you do not have a registered IP address, you may be using an identical

 

address to someone else and your network will not operate correctly.

 

InterNIC Registration Services is the organization responsible for

 

supplying registered IP addresses. The following contact information is

 

correct at time of publication:

 

World Wide Web site: http://www.internic.net

 

If your IP network is internal to your organization only, that is, you do not

 

access the Internet, you may use any arbitrary IP address as long as it is

 

not being used by another device on your network. 3Com suggests you

 

use addresses in the series 192.160.100.X (where X is a number between

 

1 and 254) with a subnet mask of 255.255.255.0.

 

These suggested IP addresses are part of a group of IP addresses that

 

have been set aside specially for use ‘in house’ only.

 

 

Solving Stack

If you are having problems with correctly forming a stack, first ensure that

Formation

Spanning Tree is enabled. If it is enabled, do the following:

Problems

 

 

1 Power off all units in the stack.

 

2 Check all the cable connections in the stack.

 

3 Power on all units in the stack.

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3Com C17304, 3C17300, C17302 manual Solving Stack, Formation, How do you obtain a registered IP Address?

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