[mdlug] DHCP question

[Robert Adkins]

	Go ahead and assign the print server a static IP Address.

	The way DHCP works is that the DHCP server does a few things when it
receives a request.

	First, it checks available addresses by looking at the leased
address list.

	Then, it decides upon an IP Address it wants to assign.

	After determining the address is wants to assign it sends out a
quick broadcast, basically saying, "Hey! I want to hand out Address X to
So-and-So, does anyone object?"

	If something on the network has that address, statically assigned or
otherwise a response comes back, "Uh... Dude! I am totally using that
address, don't go an bogart my address by giving it to someone else! I am
not in the mood for a fight!"

	Then the DHCP server goes back to figuring out which address it can
hand out and does another broadcast.

	Basically, you won't have anything to worry about by putting one
machine as a static address. Another thing you could do is set the range of
DHCP available addresses to a certain number, say 5 to 10 different
adddresses and then place the Print server in an address outside of that
range. (Make sure you use the same subnet though...)

	-Rob



> -----Original Message-----
> From: mdlug-bounces at mdlug.org 
> [mailto:mdlug-bounces at mdlug.org] On Behalf Of R. Kannan
> Sent: Tuesday, August 07, 2007 12:15 PM
> To: mdlug at mdlug.org
> Subject: [mdlug] DHCP question
> 
> All,
> 
> I have a router which runs firewall and a DHCP server. I also 
> have a wireless print server (it is a long story) which acts 
> as client pulling IP addresses. The lease time is set at 24 
> hrs but I find that the print server is not requesting for a 
> renewal causing my print jobs to fail after the lease 
> expires. Rebooting the print server causes it to make another 
> request and so fixes the problem. I cannot find a way of 
> making the print server request a renewal periodically (I 
> thought DHCP standard requires a renewal request after 50% of 
> the time had past).
> 
> My question is can I go around this problem by assigning 
> static IP address to the print server and making sure that 
> that the DHCP server does not assign that to other clients? 
> 
> TIA for your help
> 
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