Restricting ONT's Ethernet port to singe active IP address

Glenn Satchell Glenn.Satchell at
Thu Apr 23 03:03:03 UTC 2009

Check the archives, there was something late last year (?) about this.
You used omshell to set the lease end time to zero.

This works as long as the device doesn't come back and assume that it
still has a valid lease, and in the meantime that IP has been assigned
to someone else. Remember that half the information is on the server,
the rest is with the client...


>From: "Frank Bulk" <frnkblk at>
>To: "'Chris Buxton'" <cbuxton at>, "Users of ISC DHCP" 
<dhcp-users at>
>Thanks for correcting me, that's encouraging.
>Does that work out-of-the-box, or is it a patch that's been compiled in?
>-----Original Message-----
>From: Chris Buxton [mailto:cbuxton at] 
>Sent: Wednesday, April 22, 2009 5:27 PM
>To: frnkblk at; Users of ISC DHCP
>Cc: 'Jerimiah Cole'
>Subject: Re: Restricting ONT's Ethernet port to singe active IP address
>That's not true. Men & Mice Suite uses OMAPI to release leases,  
>although it requires a certain minimum version of dhcpd. As I recall,  
>the threshold is 3.0.5 or 3.0.6 - it works with the default package  
>install on Ubuntu 8.10, but not on Red Hat Enterprise Linux 5.
>Chris Buxton
>Professional Services
>Men & Mice
>On Apr 22, 2009, at 3:12 PM, Frank Bulk wrote:
>> Someone wrote me off-list earlier saying it's not possible in  
>> OMAPI.  That's
>> too bad, because that would be a great work-around.
>> We plan to test this tomorrow.
>> Frank
>> -----Original Message-----
>> From: Jerimiah Cole [mailto:jcole at]
>> Sent: Wednesday, April 22, 2009 4:24 PM
>> To: frnkblk at
>> Cc: 'Users of ISC DHCP'
>> Subject: Re: Restricting ONT's Ethernet port to singe active IP  
>> address
>> <snip>
>> I once gave the OMAPI docs a quick look and it didn't appear that it  
>> was
>> possible to exipre or otherwise release an active lease.  Maybe an  
>> expert can chime in.
>> Jerimiah
>> _______________________________________________
>> dhcp-users mailing list
>> dhcp-users at
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