[Dnsmasq-discuss] Missing DHCPNAKs

Simon Kelley simon at thekelleys.org.uk
Sat Aug 13 17:27:57 BST 2005


I'm currently away, and have limited net access. I plan to be back in a
week or so, and I'll take a look at this then. I'd expect the -K option to
do the right thing, but if it doesn't, then it should be fixed.



Cheers,

Simon.

> Yes.
> Not as command line option, but as a dnsmasq.conf directive....
> Also, a quick look at the code in the rfc2131.c:185 should clearly
> show you how there's simply no code to handle this situation.
>
> 	Shechter.
> -----Original Message-----
> From: Luca Landi [mailto:me at lucalandi.com]
> Sent: Thursday, August 11, 2005 22:47
> To: dnsmasq-discuss at lists.thekelleys.org.uk
> Cc: Dan Shechter; Max Kovalenko
> Subject: Re: [Dnsmasq-discuss] Missing DHCPNAKs
>
> Dan Shechter ha scritto:
>> I'm encountering a scenario where DNSMASQ is receiving a DHCPREQUEST
> for
>> renewal from A client which is "roaming" in from a previous network
> which
>> is a network which DNSMASQ's configuration file has no pool for.
>>
>> There for DNSMASQ reports the error message from rfc2131.c:185:
>> "no address range available for DHCP request..." and returns.
>>
>> Other wireless routers/access points are returning DHCPNAK messages in
>> this situation.
>
> Did you try -K option? excerpt from dnsmasq man page:
>
> "Should  be  set  when dnsmasq is definatively the only DHCP server on a
>
> network. It changes the behaviour from strict RFC compliance so  that
> DHCP
> requests on unknown  leases from unknown hosts are not ignored. This
> allows
> new hosts to get a lease without a tedious timeout under all
> circumstances."
>
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>
>





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