From: spduo (frenzeus@streamyx.com)
Date: Mon Jul 02 2007 - 03:59:22 ART
Hi,
Tahnks for the reply. In my case, there's no other client.. it is between R3
(dhcp server) and SW1 (dhcp client). I've attempted to clear the binding
numerous times, R3 just does not assign 10.1.37.7 to SW1.
Cheers.
----- Original Message -----
From: "Avner Izhar" <aizhar@ccbootcamp.com>
To: "spduo" <frenzeus@streamyx.com>; "Cisco certification"
<ccielab@groupstudy.com>
Sent: Monday, July 02, 2007 7:42 AM
Subject: RE: DHCP server Assigning Specific IP to client
> Hi,
>
> Looks like there is some other client in the network who request the ip
> faster
> then the one you are configuring.
>
> You can try to find it by the mac address the will be displayed with 'show
> ip
> dhcp binding', or you can configure static binding by following the
> instruction in here:
> http://www.cisco.com/en/US/products/sw/iosswrel/ps5207/products_feature_guide
> 09186a008027fa7c.html
>
> Please note that the mac address listed in the 'show ip dhcp binding' will
> start with two digit hardware type and then the actual mac address.
>
> -------------------------------------------
> Regards,
> Avner Izhar
> Technical Instructor
> CCIE #15999 (Voice)
> Voice: (702) 968-5100
> Fax: (702) 446-8012
> E-mail: aizhar@ccbootcamp.com
> Network Learning Inc - A Cisco Sponsored Organization(SO) YES! We take
> Cisco
> Learning credits!
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>
>
> ________________________________
>
> From: nobody@groupstudy.com on behalf of spduo
> Sent: Mon 7/2/2007 9:48 PM
> To: Cisco certification
> Subject: DHCP server Assigning Specific IP to client
>
>
>
> Hi all,
>
> An interface has been configured on a dhcp-client router to request for IP
> address via DHCP (ip address dhcp) under interface configuration mode. A
> DHCP
> server has been configured with a pool to purposefully assign a specific
> IP
> address to the client, i.e. 10.1.37.7. The following is what i've
> configured
> on the server-end in the dhcp-pool:
>
> ip dhcp excluded-address 10.1.37.1 10.1.37.6
> ip dhcp excluded-address 10.1.37.8 10.1.37.254
> !
> ip dhcp pool DHCP_POOL
> network 10.1.37.0 255.255.255.0
> lease infinite
> !
> And i keep getting the following message prompt on the server-end. It
> seems
> the DISCOVER packet is received from the client, but server fails to
> allocate..
>
> DHCPD: DHCPDISCOVER received from client
> 0063.6973.636f.2d63.6330.362e.3038.6638.2e66.3130.302d.4469.31 on
> interface
> Virtual-Access2.1.
> DHCPD: Allocate an address without class information (10.1.37.0)
>
> I noticed that on the server it has already assigned 10.1.37.7 - but not
> to
> the client, besides on this segment there're only 2 routers, R3 (dhcp
> server)
> and SW1 (dhcp client). Despite numerous attempts to clear the binding and
> reload both routers, R3 still fails to assign 10.1.37.7 to SW1.
>
> However, if i remove the "ip dhcp excluded-address 10.1.37.1 10.1.37.6",
> the
> server-end router succesfully assigns 10.1.37.1 to the client - but i want
> it
> to assign 10.1.37.7. Am i missing anything here?
>
> Thanks in advance guys.
>
> Cheers,
> -K
>
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