[TriLUG] WIFI misbehavior

[Matt Flyer]

You might want to have a look at this link:
http://serverfault.com/questions/255487/excessive-dhcp-requests-in-var-log-messages-dhcpinform-dhcpack-and-dhcpreques
While the problem would appear to be a client side issue, the page has a
couple of server side suggestions that you might want to try.
1) See if you have your DHCP server listening on multiple ports or
multiple interfaces (i.e. double check the binding)
2) Use wireshark or another sniffer to see if you are getting multiple
DHCPACK, perhaps from multiple places.  Granted, you shouldn't be, but
it is something to rule out.

On Thu, 2012-05-31 at 01:39 -0400, Joseph S. Tate wrote:

> > On Wed, May 30, 2012 at 3:20 PM,  <matt at noway2.thruhere.net> wrote:
> >> The requests shown above are 10-20 seconds apart, which is really
> >> excessive. Are you sure it is from a suspend resume or are there perhaps
> >> multiple problems?
> 
> The lease file has not expanded, new lease files have not been
> created, but the excessive DHCPREQUESTing has resumed as of May 31
> 01:24:19.  I finally got an ack back at 1:37:38:
> 
> May 31 01:37:38 laputa dhclient[5439]: DHCPACK from 10.2.2.1
> May 31 01:37:38 laputa dhclient[5439]: bound to 10.2.2.11 -- renewal
> in 35336 seconds.
> May 31 01:37:38 laputa NetworkManager[1114]: <info> (eth0): DHCPv4
> state changed reboot -> renew
> May 31 01:37:38 laputa NetworkManager[1114]: <info>   address 10.2.2.11
> May 31 01:37:38 laputa NetworkManager[1114]: <info>   prefix 24 (255.255.255.0)
> May 31 01:37:38 laputa NetworkManager[1114]: <info>   gateway 10.2.2.1
> May 31 01:37:38 laputa NetworkManager[1114]: <info>   hostname 'laputa-wired'
> May 31 01:37:38 laputa NetworkManager[1114]: <info>   nameserver '10.2.2.1'
> May 31 01:37:38 laputa NetworkManager[1114]: <info>   domain name
> 'int.dragonstrider.com'
> May 31 01:37:38 laputa NetworkManager[1114]: <info>   domain search
> 'int.dragonstrider.com.'
> May 31 01:37:38 laputa NetworkManager[1114]: <info>   domain search
> 'dragonstrider.com.'
> 
> but that didn't stop the REQUESTing
> 
> -- 
> Joseph Tate
> Personal e-mail: jtate AT dragonstrider DOT com
> Web: http://www.dragonstrider.com


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