#9544 NORM 1.5-F11: ad-hoc connection assigns duplicate IP address

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#9544: ad-hoc connection assigns duplicate IP address
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           Reporter:  mikus     |       Owner:  marco                            
               Type:  defect    |      Status:  new                              
           Priority:  normal    |   Milestone:  1.5-F11                          
          Component:  sugar     |     Version:  Development build as of this date
         Resolution:            |    Keywords:  ad-hoc, F11, OS8, B4             
        Next_action:  diagnose  |    Verified:  0                                
Deployment_affected:            |   Blockedby:                                   
           Blocking:            |  
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Changes (by Quozl):

  * next_action:  add to build => diagnose


Comment:

 The usual way that IP addresses are assigned in the absence of a DHCP
 server is IETF RFC3927 "Dynamic Configuration of IPv4 Link-Local
 Addresses" ... the 169.254.0.0/16 range ... and this is a feature of
 avahi-autoipd.

 avahi-autoipd is included on XO-1 build 802, XO-1 build os8, and XO-1.5
 build os33.

 On XO-1.5 os33 and XO-1 os8 it does not seem to get started ... I too see
 10.42.43.1 at both ends.  If started manually it successfully negotiates.
 This is a temporary workaround:

 {{{
 sudo avahi-autoipd --force-bind eth0
 }}}

 XO-1 build 802 successfully assigns an RFC3927 address to eth0 when a
 simple mesh is created in the absence of a school mesh portal or XO mesh
 portal.

 XO-1 build 802 also successfully assigned RFC3927 address to eth1 (an
 external USB ethernet dongle) when attached to a MacBook running Mac OS X
 10.6.1 Snow Leopard.

 Therefore this is a regression.

 I don't think it is clear what we are adding to build yet, so I'm changing
 action needed to diagnose.  Why are we getting 10.42.43.1, and how can we
 get avahi-autoipd involved instead?

-- 
Ticket URL: <http://dev.laptop.org/ticket/9544#comment:3>
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