dhcpd

[Dwayne Hottinger]

I recently setup a new dhcp server.  In my logfiles yesterday I noticed the following message:

 BOOTP from dynamic client and no dynamic leases

I checked the mac addresses of these clients and thus far they are all ipads, ipods or iphones.  These devices have gotten ip's in the past.  In my dhcpd.conf file I have:  deny dynamic bootp clients; .  I see that Im handing out IP's for for the subnets, and my range should be plenty big.   Has anyone else seen these messages with ipods, ipads or iphones?   We have quite a few of these devices on the network now and I want to ensure that they work correctly.   Im running dhcpd version 3.0.5 built from rpm on Centos 6.

--

Dwayne Hottinger

Network Administrator

Harrisonburg City Public Schools

[Jim Glassford]

Hi,

Running 4.1.1-P1 and we these also from iThings and androids. Tried to
verify if the ones doing it where jail broke or something else in common
but never got to the bottom of it. Enabling bootp, they continued to
ask. We just continue to deny bootp for subnets that have no need for it
and ignore them. Five doing it so far today out of 4200.

dhcpd: BOOTREQUEST from 14:5a:05:eb:dc:f3 via 144.80.36.19: bootp disallowed

jim

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[Dwayne Hottinger]

Great to hear Im not the only one seeing this.  Havent seen any androids yet.   I dont think it is any that are jailbroke.  One of the devices is division owned so I know it isnt.  Just crappy os's.   The settings on the ipads actually have a tab for bootp, but no way to change that.  

ddh

[Niall O'Reilly]

[ Not sure why this thread started on BIND-users:
please continue on DHCP-users! ]

On 18 Oct 2012, at 13:42, Dwayne Hottinger wrote:

> I checked the mac addresses of these clients and thus far they are all ipads, ipods or iphones.

We see BOOTP transactions here at UCD (in Ireland, not California!) too.
I was agreeably surprised to see that our latest monthly statistical report
shows these on our copper networks only, not on wireless.

IIRC, it's actually very easy for the user to configure any of the iDevices
to use DHCP instead of BOOTP.

Jim Glassford's suggestion seems good enough to me.

On 18 Oct 2012, at 14:28, Jim Glassford wrote:

> We just continue to deny bootp for subnets that have no need for it and ignore them.

Best regards,

Niall O'Reilly
University College Dublin IT Services