[Dnsmasq-discuss] Is dnsmasq supposed to listen on UDP port 0.0.0.0:67 when listen-address is specified?

Parke parke.nexus at gmail.com
Fri Dec 22 02:46:28 GMT 2017


On Thu, Dec 21, 2017 at 2:56 AM, Ignat Korchagin <ignat at cloudflare.com> wrote:
> FYI a good overview of SO_REUSEPORT at least in Linux is here
> https://blog.cloudflare.com/the-sad-state-of-linux-socket-balancing/

Thanks.  The article deals with accepting on a TCP socket, not
receiving on a UDP socket.

But if the principles are similar for UDP, then, as I expected, it
looks like SO_REUSEPORT provides load balancing.

Does anyone believe that dnsmasq is intending to create load balancing
when multiple instances bind to the same DHCP socket?  (I don't.  I
believe dnsmasq is expecting mirroring, but I could be wrong.)

Cheers,

Parke



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