Solved: A binding already exists for X.X.X.X ---- Help

allaytani2 · ‎04-02-2013

Hi,

I need some help please, I have core switch 4507 it is configured to support DHCP server for the users and Printers.

I'm using manay DHCP pools, I have some pools only providing single IP address for some networking devices like printers.

below is the configuration for one printer :

ip dhcp pool MyCompany_Konica_Minolta_4

host 10.0.88.166 255.255.255.0

client-identifier 0100.206b.8801.99

dns-server 192.168.3.9 192.168.2.59

The question is after we replace the network card for the printer, i tried to change the settings for the "client-identifier 0100.206b.8801.99"

to replace the old MAC address by the new one. after I remove the old command and try to add it with new settings i'm getting the below error:

A binding already exists for 10.0.88.166

I checked the ARP list and the binding list but i didn't find anything related to that IP ?

Please I need some help to change it to be dedicated to that printer?

Regards

Bilal Nawaz · ‎04-02-2013

Okay thats strange...

Could you do a show run | inc 10.0.88.166 please?

If anything please try deleting the whole DHCP reservation and re-adding like this:

no ip dhcp pool MyCompany_Konica_Minolta_4

!

ip dhcp pool MyCompany_Konica_Minolta_4

host 10.0.88.166 255.255.255.0

client-identifier 0100.206b.8801.99

dns-server 192.168.3.9 192.168.2.59

Hope this helps.

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Please rate useful posts & remember to mark any solved questions as answered. Thank you.