DHCPD: there is no address pool

johnnylingo · ‎03-20-2013

Cisco 1811W router, IOS 15.1(4)M6, DHCP server not working on internal VLAN but configuration looks OK to me.

C1811W#sh run int vl252

!

interface Vlan252

ip address 192.168.252.252 255.255.255.0

ip nat inside

ip virtual-reassembly

!

C1811W#sh run | section dhcp pool

ip dhcp pool VLAN252

network 192.168.252.0 255.255.255.0

subnet prefix-length 24

dns-server 192.168.252.252

default-router 192.168.252.252

C1811W#sh ip dhcp pool

Pool VLAN252 :

Utilization mark (high/low) : 100 / 0

Subnet size (first/next) : 0 / 0

Total addresses : 256

Leased addresses : 0

Pending event : none

1 subnet is currently in the pool :

Current index IP address range Leased addresses

192.168.252.0 192.168.252.0 - 192.168.252.255 0

C1811W#debug ip dhcp server event

DHCP server event debugging is on.

*Mar 20 15:46:23.437: DHCPD: Sending notification of DISCOVER:

*Mar 20 15:46:23.437: DHCPD: htype 1 chaddr 0019.9d07.e0d0

*Mar 20 15:46:23.437: DHCPD: remote id 020a0000c0a8fcfc040000fc

*Mar 20 15:46:23.437: DHCPD: circuit id 00000000

*Mar 20 15:46:23.437: DHCPD: Seeing if there is an internally specified pool class:

*Mar 20 15:46:23.437: DHCPD: htype 1 chaddr 0019.9d07.e0d0

*Mar 20 15:46:23.437: DHCPD: remote id 020a0000c0a8fcfc040000fc

*Mar 20 15:46:23.437: DHCPD: circuit id 00000000

*Mar 20 15:46:23.441: DHCPD: there is no address pool for 192.168.252.252.

johnnylingo · ‎03-20-2013

C1811W(config)#ip dhcp pool VLAN252

C1811W(dhcp-config)#no subnet prefix-length

Mar 20 16:09:00.966: DHCPD: Adding binding to radix tree (192.168.252.1)

Mar 20 16:09:00.966: DHCPD: Adding binding to hash tree

Mar 20 16:09:00.966: DHCPD: assigned IP address 192.168.252.1 to client 0100.199d.07e0.d0.

bkennedy15 · ‎09-21-2013

Thank you for posting your solution. This helped me resolve my problem. Though i'm not quite sure how/why the subnet prefix-length would cause this issue. Can anyone explain?

Leo Laohoo · ‎09-21-2013

subnet prefix-lenIgth 24

I agree, this shouldn't be there.

It's an old command that once had a place but now it's irrelevant.