
H
DHCP
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 | This appendix contains the following sections: | 
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 | ■ How Traffix Manager Monitors DHCP Devices | 
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 | ■ What Effect Do DHCP Devices Have On The Map? | 
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| How Traffix | Traffix™ Manager 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 | 
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 | Host Control Protocol (DHCP) can change, and therefore this is an | 
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 | unreliable method of identification for these devices. | 
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 | The only certain way of identifying such devices in the Map is to use the | 
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 | MAC address of the device. You can use the DHCP configuration file to | 
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 | specify which devices you want Traffix Manager to identify using this | 
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 | method. You can open this file by clicking DHCP Setup in the Traffix | 
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 | Control Panel. | 
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| 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. | 
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 | A DHCP device requests an IP address from the DHCP server. DHCP is a | 
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 | dynamic protocol, and the DHCP server can provide a different IP address | 
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 | for the same device each time this request is made. If, according to your | 
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 | local DHCP policy, the IP address of a device changes, the device will | 
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 | appear exactly the same in the Map, except that its IP address will | 
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 | change. | 
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 | If the old IP address of a device is assigned to a new MAC address, a new | 
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 | device is created in the Map. This new device will have the old IP address | 
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 | and the new MAC address attribute assigned to it. The original device | 
