H

DHCP

 

This appendix contains the following sections:

 

How Traffix Manager Monitors DHCP Devices

 

What Effect Do DHCP Devices Have On The Map?

 

 

How Traffix

TraffixManager normally uses the Network Layer Address (for example,

Manager Monitors

IP address, IPX address) as the unique way to identify objects on your

DHCP Devices

network. However, the IP address of devices managed using the Dynamic

 

Host Control Protocol (DHCP) can change, and therefore this is an

 

unreliable method of identification for these devices.

 

The only certain way of identifying such devices in the Map is to use the

 

MAC address of the device. You can use the DHCP configuration file to

 

specify which devices you want Traffix Manager to identify using this

 

method. You can open this file by clicking DHCP Setup in the Traffix

 

Control Panel.

 

 

What Effect Do

If a device which is managed using DHCP is discovered on your network,

DHCP Devices Have

it may appear on the Traffix Manager Map as a normal device until Traffix

On The Map?

Manager realizes it is a DHCP device.

 

A DHCP device requests an IP address from the DHCP server. DHCP is a

 

dynamic protocol, and the DHCP server can provide a different IP address

 

for the same device each time this request is made. If, according to your

 

local DHCP policy, the IP address of a device changes, the device will

 

appear exactly the same in the Map, except that its IP address will

 

change.

 

If the old IP address of a device is assigned to a new MAC address, a new

 

device is created in the Map. This new device will have the old IP address

 

and the new MAC address attribute assigned to it. The original device

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HP Transcend Traffix Manager manual Manager Monitors, What Effect Do, Dhcp Devices Have, On The Map?