Setting static IP

Nik2013

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Jul 8, 2013
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Is it required when using address reservations on a router to use IP addresses outside the DHCP address range?

If so would there be any problems in me reducing the DHCP address range? As far as I can tell it has used up all the viable IP addresses.
 
If you set reservations in the DHCP for specific machines or printers, then DHCP would still handle these, it would know that these machines(mac addresses) have assigned IP addresses and they will always get that address. These reserved addresses are within the DHCP range so you wouldn't need to reduce the DHCP range if you just set reservations. These reserved IP adresses will not be available to lease out to other machines.

How many devices do you have on your network? Are there a lot of mobile(temporary) devices? Reducing the lease time may help free up some addresses.

 

Nik2013

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Well you see, I've already setup reserved IP addresses, however my machines are occasionally not being given their reserved address. There are around 3 computers always connected, with 2 or 3 mobile devices which come and go.
 

Adamm07x

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Nov 2, 2010
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Is it required when using address reservations on a router to use IP addresses outside the DHCP address range?

No.


If so would there be any problems in me reducing the DHCP address range? As far as I can tell it has used up all the viable IP addresses.

No, if your goal is to allow the only the current # of clients connected, and no more. But would have to be modified for each new client you add.