[c-nsp] DHCP Question

[Paul Stewart]

Thanks for the reply.. yes there is forward and reverse entries in place for this IP...
 
 
Paul Stewart 
IP Routing/Switching 
Nexicom Inc. 
http://www.nexicom.net/

________________________________

From: David Prall [mailto:dcp at dcptech.com]
Sent: Sun 9/25/2005 2:09 PM
To: Paul Stewart; cisco-nsp at puck.nether.net
Subject: RE: [c-nsp] DHCP Question



Paul,
Does the DNS Server have the proper entries for this system as well. Most
unix systems using DHCP will take the address given and then query for their
name on the DNS servers to determine that they got the correct address. If
they didn't get the correct information from DNS, they will drop the DHCP
information.

David

--
David C Prall dcp at dcptech.com http://dcp.dcptech.com
 

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Paul Stewart
> Sent: Sunday, September 25, 2005 12:56 PM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] DHCP Question
>
> Hi there...
>
> We provide static IP's to business customers on our wireless
> networks using IOS DHCP server.  Normally we just bind the
> mac address to an IP like this:
>
> 
>
> ip dhcp pool CustomerXXX
>    host XXX.XXX.XXX.61 255.255.255.192
>    client-identifier 0100.0d88.98a8.77
>    default-router XXX.XXX.XXX.1
>    dns-server 216.168.96.10 216.168.96.13
>    domain-name nexicom.net
>
>
> This works great in all locations except for one customer at
> an existing location.  Here's some output:
>
> 
>
> dis1-rtr-bh#sh ip dhcp binding
>
> IP address       Client-ID/              Lease expiration        Type
>                  Hardware address
> XXX.XXX.XXX.26   0050.bac9.f875          Sep 25 2005 02:16 PM
>    Automatic
>
> XXX.XXX.XXX.60   0050.bac9.f875          Infinite            
>    Manual
>
> I'm having an impossible time trying to get this particular
> customer (who's running a linux box on his side) bound to a
> static IP.  Whether I use client-identifier or host entry it
> will not bind and I'm puzzled why.  Above you can see this
> customer getting a dynamic address of xxx.xxx.xxx.26 while I
> have a bound entry for this customer at xxx.xxx.xxx.60
>
> Here's the current config:
>
> ip dhcp pool Custxxxx
>    host XXX.XXX.XXX.60 255.255.255.192
>    hardware-address 0050.bac9.f875
>    default-router XXX.XXX.XXX.1
>    dns-server 216.168.96.10 216.168.96.13
>    domain-name nexicom.net
>
>
> I've tried it this way and also using client-identifier which
> works everywhere else...
>
> 
>
> Thoughts?
>
> Paul
>
> 
>
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