How to reserve an IP Address using MAC

[quickconnect]

I have a router (Cisco 1751) that is doing DHCP and also reserving a range of addresses also.

Now what I want to do is also reserve an IP Address to a specific MAC Address.

Currently my dhcp setting look like this

ip dhcp excluded-address 10.89.1.1 10.89.1.100
!
ip dhcp pool Pool1
network 10.89.1.0 255.255.255.0
domain-name test.corp.com
dns-server 1.26.x.x 1.26.x.x
default-router 10.89.1.1
lease 30

I added this

ip dhcp pool stager
host 10.89.1.241 255.255.255.0
client-identifier 0100.1422.52e5.86
client-name pc37021

This does not seem to work because when I have the machine using that MAC address rebooted it still get a .113 address which is in my DHCP range.. Any thoughts?

 

[quickconnect]

Ok I figured out the issue, well the hard way... I appeared that after I rebooted the router it worked.. Is there another way this would of worked rather then rebooting the router?

 

[rainman]

You can verify your DHCP server MAC > IP bindings with:

Router#show ip dhcp binding
Bindings from all pools not associated with VRF:
IP address Client-ID/ Lease expiration Type
Hardware address/
User name
192.168.2.128 0100.0e08.eadd.a3 Mar 07 2002 07:01 AM Automatic
192.168.2.130 0100.14a5.4f77.19 Mar 07 2002 06:20 PM Automatic
192.168.2.131 0100.20a6.4cdf.f4 Mar 06 2002 08:35 PM Automatic

If you see a insistency in here you can clear the binding table with:

Router#clear ip dhcp binding ?
* Clear all automatic bindings
A.B.C.D Clear a specific binding

Clear entire table: clear ip dhcp binding *
Clear just one: clear ip dhcp binding 1.2.3.4

Hope this helps.


-Rainman

 

[quickconnect]

Thanks Rainman...