#12654 HIGH Not Tri: Unexpected IP address change

[Zarro Boogs per Child]

#12654: Unexpected IP address change
--------------------------------+-------------------------------------------
           Reporter:  wad       |       Owner:  shep         
               Type:  defect    |      Status:  new          
           Priority:  high      |   Milestone:  Not Triaged  
          Component:  wireless  |     Version:  not specified
         Resolution:            |    Keywords:  XO-4 WLAN    
        Next_action:  diagnose  |    Verified:  0            
Deployment_affected:            |   Blockedby:               
           Blocking:            |  
--------------------------------+-------------------------------------------

Comment(by wad):

 The logs from the DHCP server indicate what may be going on, although I
 can't quite explain them.

 We see the laptop obtain an address normally at 00:45:

  Apr 10 00:45:22 cerberus dhcpd: DHCPDISCOVER from 20:16:d8:1e:89:5f via
 eth1
  Apr 10 00:45:23 cerberus dhcpd: DHCPOFFER on 172.24.0.230 to
 20:16:d8:1e:89:5f via eth1
  Apr 10 00:45:23 cerberus dhcpd: DHCPREQUEST for 172.24.0.230 (172.24.0.1)
 from 20:16:d8:1e:89:5f via eth1
  Apr 10 00:45:23 cerberus dhcpd: DHCPACK on 172.24.0.230 to
 20:16:d8:1e:89:5f via eth1

 And then renew the lease thirty minutes later:

  Apr 10 01:15:33 cerberus dhcpd: DHCPREQUEST for 172.24.0.230 from
 20:16:d8:1e:89:5f via eth1
  Apr 10 01:15:33 cerberus dhcpd: DHCPACK on 172.24.0.230 to
 20:16:d8:1e:89:5f via eth1

 And then the problem happens:

  Apr 10 02:20:20 cerberus dhcpd: DHCPDISCOVER from 20:16:d8:1e:89:5f via
 eth1
  Apr 10 02:20:20 cerberus dhcpd: Abandoning IP address 172.24.0.230:
 pinged before offer
  Apr 10 02:20:42 cerberus dhcpd: DHCPDISCOVER from 20:16:d8:1e:89:5f via
 eth1
  Apr 10 02:20:43 cerberus dhcpd: DHCPOFFER on 172.24.0.232 to
 20:16:d8:1e:89:5f via eth1
  Apr 10 02:20:44 cerberus dhcpd: DHCPREQUEST for 172.24.0.232 (172.24.0.1)
 from 20:16:d8:1e:89:5f via eth1
  Apr 10 02:20:44 cerberus dhcpd: DHCPACK on 172.24.0.232 to
 20:16:d8:1e:89:5f via eth1

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Ticket URL: <http://dev.laptop.org/ticket/12654#comment:9>
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