Static DHCP bindings

Answered Question
Feb 26th, 2009

Hi,

I'm very new to Cisco, so bear with me. I am setting up an 1812 and I'm having trouble using DHCP to distribute static addresses. I have had quite a bit of experience doing this with other routers and thought I had it right. Using SDM, I defined the DHCP pool and created the DHCP bindings but the servers didn't pick up thise addresses and I had to configure one each separately. I would like to have DHCP do the job since it would also update the DNS settings when necessary.


I tried allocating the entire subnet to DHCP and that didn't work. Then I allocated a small block to DHCP with the bindings outside the block, this is the way I would normally configure static DHCP. Neither way worked, what am I missing?

Thanks,

Al

Correct Answer by Edison Ortiz about 7 years 12 months ago

Glad to be of help, please remember to rate helpful posts


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Edison.

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aldboccio Fri, 02/27/2009 - 05:02

Thanks for the quick reply. My problem is not entering the address assignments, the servers are not getting the assignments, they get a pool address. I have temporarily setup each server but would like to use the 1812. Here are my assignments from the sdmconfig.txt, is this correct?


!

ip cef

no ip dhcp use vrf connected

ip dhcp excluded-address 192.168.123.1 192.168.123.49

ip dhcp excluded-address 192.168.123.151 192.168.123.254

!

ip dhcp pool sdm-pool1

network 192.168.123.0 255.255.255.0

default-router 192.168.123.254

dns-server 167.206.112.138 167.206.7.4

!

ip dhcp pool Canon7105

host 192.168.123.245 255.255.255.0

hardware-address 0000.855d.188a

!

ip dhcp pool CLS3-1

host 192.168.123.251 255.255.255.0

hardware-address 0019.b9e0.9fd2

!

ip dhcp pool CLS3-2

host 192.168.123.252 255.255.255.0

hardware-address 0019.b9e0.9fd4

!

ip dhcp pool Vonage

host 192.168.123.253 255.255.255.0

hardware-address 0015.e9b8.ef3a

!

ip dhcp pool UPS-Backup

host 192.168.123.160 255.255.255.0

hardware-address 0016.ec45.5478

!


aldboccio Fri, 02/27/2009 - 06:54

Thanks again, I will try this over the weekend, it's to busy today to restart a server. I already setup 2 static assignments for test.

Al

aldboccio Sat, 02/28/2009 - 05:45

Thanks very much, that worked! I have always used GUIs setting up routers before so I am a little hesitant to jump into IOS, even though I have extensive experience with command line OSs.

Al

Correct Answer
Edison Ortiz Sat, 02/28/2009 - 08:17

Glad to be of help, please remember to rate helpful posts


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Edison.

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