How would I do this?

[E Johnson]

Thank you...   I didn't think it was going to be that easy.

One more question about situation 2,  if the wireless connection was 
disconnected and then the wired connection used immediately, would that 
cause any problems or would it be necessary to wait a certain amount of 
time for the wired connection to work?

Thanks for the information
Eric Johnson

Glenn Satchell wrote:
>> Date: Tue, 10 Feb 2009 15:54:22 -0600
>> From: E Johnson <ej.isc at indicium.org>
>> To: DHCP Users List <dhcp-users at lists.isc.org>
>> Subject: How would I do this?
>>
>> Sorry for the vague subject line.
>>
>> I have 2 situations that I am wondering if the DHCP Server can help me 
>> deal with.
>>
>> First of all, I am a rookie.
>>
>> Situation 1...
>>
>> I have a notebook user who can connect to the network by way of wireless 
>> or wired.  Sometimes he thinks he is having a problem with the wireless 
>> connection and plugs in the wired connect, then of course nothing works.
>>
>> Is it possible for the DHCP Server to refuse to give an IP when one or 
>> the other client already has one?  If he is connected wirelessly, then 
>> the wired connection will not get an IP or vice versa.
>>
>>
>> Situation 2...
>>
>> I have a notebook user who is a little technologically challenged.  When 
>> she would travel outside the office we would have files that she needs 
>> placed on her desktop or in My Documents folder.  So we have shortcuts 
>> for these network shares.  The notebook user is able to connect to the 
>> office network either by wireless or wired connection.
>>
>> Is it possible to tell the DHCP Server to give her the same IP when she 
>> is connected by wire or wirelessly?  That way, we can use the same 
>> network shortcuts to her all the time.
>>
>> I hope that I am making sense through all this.
>>
>> Thanks,
>> Eric Johnson
> 
> Hi Eric
> 
> Not sure about situation 1, probably needs some sort of conditional
> statement coupled with "ignore booting;"
> 
> For situation 2 you can use a fixed address, eg:
> 
> host laptop_lan {
> 	# ethernet mac address here
> 	hardware ethernet aa:bb:cc:dd:ee:ff;
> 	fixed-address 192.168.0.5;
> }
> host laptop_wireless {
> 	# wireless mac address here
> 	hardware ethernet ff:ee:dd:cc:bb:aa;
> 	fixed-address 192.168.0.5;
> }
> 
> Note the same IP address assigned both times.
> 
> The best documentation is the man pages, suggested reading is:
> 
> man dhcpd.conf
> man dhcp-options
> man dhcp-eval
> 
> regards,
> -glenn
> 
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> 
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