[Dnsmasq-discuss] Dnsmasq not always seeing unicast packets

Jan Psota jasiu at kkfsa.pl
Mon Sep 12 20:16:59 BST 2011

> I'm running dnsmasq-2.57 on Linux (Ubuntu 11.04), and am starting two dnsmasq
> processes to serve DHCP on two interfaces to VMs I'm running.  Initial packets
> (broadcast MAC/broadcast IP) are handled fine, but when it comes time to renew
> and the VMs unicast the packet directly to the server IP, only one of the two
> dnsmasq processes is getting the packets - the second one started.
> [...]
I'm not sure why it behaves like that (didn't tested), but if you want
to have it working in easiest way - just start only one process of
dnsmasq with two dhcp-range= and interface= set for both needed
interfaces and dnsmasq will adjust proper range basing on serving
interface's IP.


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