Simple DHCP Question

[SimpleSi]

Sorry - brain gone.

I want clients to pick up an address in the range 10.xx.yy.30 - 10.xx.yy.200

and I want reservatations for printers,APs etc e.g 10.xx.yy.10, 10.xx.yy.11 up to 10.xx.yy.29

I don't want muggle clients knicking IPs between 10.xx.yy.10 and 10.xx.yy.29..
Shoudl I set my pool to be 10.xx.yy.10 - 10.xx.yy.200 and exclude 10.xx.yy.10-10.xx.yy.29

or

just set pool to 10.xx.yy.30 - 10.xx.yy.200

or
something else?

Si

[pantscat]

It depends on whether you want to explicitly set reservations for your printers in DHCP.

If so - make the range 10.xx.yy.10 --> 10.xx.yy.200 - and then set reservations from .10 --> .29 for all your printers (you'll need to know the mac addresses though).

Personally - I just give my printers fixed IPs (manually... not via DHCP) and use a different range for clients.

[kmount]

If you are statically setting the IPs on the printers, APs etc then you could have the pull from .30-200 without dealing with exceptions/reservations that way.

If you want the printers, APs etc to pick up their IPs from dhcp then you will set the pool from .10-200 and put in your reservations for those devices.

[SimpleSi]

If so - make the range 10.xx.yy.10 --> 10.xx.yy.200 - and then set reservations from .10 --> .29 for all your printers (you'll need to know the mac addresses though).

Trouble is - muggle clients are knicking addresses below 10.xx.yy.30 so I now can't add in more reservations without finding the offending client and switching it off and then deleting the lease and re-assigning it as a reservation

Si

[SimpleSi]

If you want the printers, APs etc to pick up their IPs from dhcp then you will set the pool from .10-200 and put in your reservations for those devices.

But the other computers are knicking addressess I just want to use for reservations (see above)

Si

[DAZZD88]

Set you're range 10.xx.yy10-10.xx.yy.200 and set an exclusion range of 10.xx.yy.10-10.xx.yy.29 and then that way you can have clients picking up the correct addresses while you set up reservations for your printers and what not.

[kmount]

You should know the name of the machine from the DHCP lease if you want to go kill it off + add the exception.

Or you could add an exclusion range and pop your printers/APs in there.

Might find when everyone's gone home this becomes easier

[SimpleSi]

Or you could add an exclusion range and pop your printers/APs in there.

Maybe my brains worse than I thought I even the questions come out wrong

Can I add an exclusion range but still be able to add reservations within that exclusion range or will DHCP says get stuffed!

I dont want normal DHCP clients using the the lower ip numbers for themselves but I still want the facility to use reservations instead of static IPs.

(My experience of static IPs on devices is that one day - they will forget them and then peopl can't print )

Si

[SimpleSi]

PS _ I'm trying to this properly instead of my normal bodge

[pantscat]

You don't need to add an exclusion range - that would be used if you didn't use reservations but put static IPs on devices.

Just set up your range, then put in all of your reservations and then hey-presto!

[SimpleSi]

You don't need to add an exclusion range - that would be used if you didn't use reservations but put static IPs on devices.

Just set up your range, then put in all of your reservations and then hey-presto!

I hope this is as humerous to others as well as me

I WANT PRINTERS AND APs TO BE GIVEN SAME ADDRESS EACH TIME USING RESERVATIONS in range 10.xx.yy.10 - 10.xx.yy.29 (I KNOW HOW TO ADD A RESERVATION - I DO THIS ALREADY)

I WANT NORMAL COMPUTERS TO GET 10.xx.yy.30-10.xx.yy.200.

I DONT WANT NORMAL COMPUTERS BEING ASSINGED IPs in 10.xx.yy.10-10.xx.yy.29 address space

what to I set my pool to?
Si

[SimpleSi]

Set you're range 10.xx.yy10-10.xx.yy.200 and set an exclusion range of 10.xx.yy.10-10.xx.yy.29 and then that way you can have clients picking up the correct addresses while you set up reservations for your printers and what not.

Sorry - missed your post - Ta

Si

[pantscat]

Ok... I see... normal clients are nicking the addresses before you reserve them.

So... do this:

1. Set up your pool as 10.xx.yy.10 --> 10.xx.yy.200.
2. Add an exclusion range of 10.xx.yy.10 --> 10.xx.yy.29
3. Activate your scope.
4. Add your reservations as and when you need to.

That's it.

Drink coffee, eat bacon and be happy.

[SimpleSi]

@pantscat and dazzd88

Super - that's worked - I added the exclusion and then reserverd an unused address in the exclusion range for my new printer and power-cycled it - it picked up reserved address OK ( the naughty muggle clients will move out of space over the next 2 weeks )

Drink coffee, eat bacon and be happy.

Ah - I see where I've been going wrong - I've been drinking bovril and eating coffee flavoured chocolates!

Si

[pantscat]

Sorry about the confusion... I'm not very good at multi-tasking without coffee!