Re: Wrong source MAC for DHCP requests with AddressRandomization=network

[Denis Kenzior <denkenz@gmail.com>]

Hi Toke,

> 
> Yup, that resolves the issue so that I can connect. However, this is the
> DHCP packets I see when moving between two networks (back and forth):
> 

Excellent.

> 
> 17:49:59.040639 1e:aa:ca:6d:0d:e0 > 92:0a:9a:27:ca:65, ethertype IPv4 (0x0800), length 342: 10.42.3.52.68 > 10.42.3.33.67: BOOTP/DHCP, Request from 1e:aa:ca:6d:0d:e0, length 300

Looking at the timestamps, are you sure this isn't a DHCP RELEASE going out to 
the old network?  Enabling DHCP client debugging might be helpful:

export IWD_DHCP_DEBUG=debug
<start iwd>

> 
> As you can see, in each case, there's an initial unicast request that

iwd should be sending a DHCP release when we start to leave the network.  Maybe 
it is being sent at the wrong time (after we queue the CMD_DISCONNECT), but it 
should never makes it out to the new AP over the air since the client is stopped 
once the disassociation is detected.

> contains the old MAC and IP. Which seems to be a bit counter productive
> if this is supposed to be a privacy feature that doesn't leak addresses
> across networks? :)

Definitely.  Can you provide more detailed logs if you still suspect this is 
happening?

Regards,
-Denis