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Old 10th October 2013
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mikesg mikesg is offline
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Default DHCPd questions

I'm increasing my available pool of addresses to accommodate network growth. This has raised some questions for me with dhcpd. I'm running 5.3, and using the default lease time which looks to be one day.

Question 1. If all available addresses are in use, and one device leaves, does this device's IP address remain unavailable to new devices until the end of the lease, even if it is not in use? I ask because we have several people that come and go with their own personal devices. I don't want their lease to make an address unavailable to a new arrival if they aren't actively using it.

Question 2. I want this to work for a network of about 250 clients. Maybe in a few years it doubles. If I need to lower the lease time to something like 20 minutes, does that create other problems?

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