[Dnsmasq-discuss] Problem when WinXP firewall is activated (does not reply to ping)

Simon Kelley simon at thekelleys.org.uk
Fri Dec 1 17:46:57 GMT 2006

Raphaël HUCK wrote:
>>As I understand it, the client should try an arping before using the
>>address it has been given by the server.
>>The interesting question is whether WinXP actually implements this
>>arping.  If Windows follows the specification on this, there should be
>>no point in the server using arping.
> I'm going to check if WinXP does the arping check.
> But the other problem with a SOHO including a DHCP server is that a SOHO 
> is often rebooted (because the user changed settings which require a 
> reboot, because of a power failure,...).
> So each time it reboots, the lease file is cleared.

Which is a bug in the SOHO. Assuming by SOHO you mean WRT-54G-class 
stuff, then you might like to consider moving to DD-WRT. I worked with 
them to add hooks into dnsmasq so that the lease file can be stored in 
the non-volatile RAM and not trashed on a reboot. You might also like to 
consider asking the developers of your current firmware to implement the 
same thing.

> I have the issue only in this case: the SOHO reboots, the WinXP PC 
> (firewall enabled) has, the Linux PC also has, 
> and in the lease file of dnsmasq, corresponds to the MAC 
> address of the WinXP PC.

That does look like WinXP might be broken: I'd be interested in the 
results of your tests.



> --Raphael
> _______________________________________________
> Dnsmasq-discuss mailing list
> Dnsmasq-discuss at lists.thekelleys.org.uk
> http://lists.thekelleys.org.uk/mailman/listinfo/dnsmasq-discuss

More information about the Dnsmasq-discuss mailing list