DHCP Option 82

[FredZone]

Hi,

this is the Relay Agent Option,
it is composed of suboption (circuit-id, remote-id, subscriber-id, etc.).
Pros:
- Often a relay agent is a trusted element in a network and for the DHCP 
server it's interesting to obtain securized data before reply.
- It could be used to identify a relay
- It could be used to identify the client physical line and count how many 
ip were leased on the line
- Relay agent often use this option (echoed by server) to reply on the 
physical line to the client and not on broadcast (Relay agent implementation 
dependent)
Cons:
- The setting of these options. It's not often easy to maintain consistency 
between the elements setting in the network and your information database.
- The DATAGRAM packet size grows

In my opinion, it's interesting to use this option if you use it on the DHCP 
server.

Regards.

Fred.T

----- Original Message ----- 
From: "Aggarwal Vivek-Q4997C" <Q4997C at motorola.com>
To: <dhcp-users at isc.org>
Sent: Monday, May 14, 2007 10:53 AM
Subject: DHCP Option 82


>
>
>
> Hi Everybody
>
> Can anyone please give the short description on DHCP 82 Option, that how
> we can use this option and what are its advantages?
>
>
> Rgds
> Vivek Aggarwal
>
>
>
>
>
>
>
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