[Dnsmasq-discuss] Missing DHCPNAKs

Dan Shechter DanS at GoNetworks.com
Thu Aug 11 21:47:09 BST 2005


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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