[c-nsp] DHCP Question

Arie Vayner arievayner at gmail.com
Mon Sep 26 17:01:36 EDT 2005


Maybe you could try and post some debugs of the DHCP leasing process
Arie

On 9/26/05, Paul Stewart <pstewart at nexicomgroup.net> wrote:
> 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
> >
> >
> >
> > _______________________________________________
> > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
> >
>
>
>
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