Enable CONFIG_ARPD in kernel configuration

[Tim Gardner]

On 08/27/2013 08:42 AM, Dimitris Kazakos wrote:
> Hi,
> 
> I am wondering if there is any chance enabling the CONFIG_ARPD flag in
> the default Ubuntu kernel configuration,
> since this change is really minor and has already been merged by other
> distros like
> Fedora/CentOS (https://bugzilla.redhat.com/show_bug.cgi?id=502844).
> 
> It would make life much easier for people wanting to implement DMVPN
> through OpenNHRP, which needs this
> kernel option enabled in order to work properly.
> 
> This setting has been there forever and I've never heard of it causing
> any problems to anyone...
> 
> 
> 

The help text for ARPD seems a bit disingenuous. The way I read it
implies that CONFIG_ARPD defers all ARP to user space, regardless.
However, from reading the bugzilla report I gather that CONFIG_ARPD
defers ARP to user space _only_ when an ARP daemon is connected, but it
otherwise behaves normally.

Frankly, I'm not familiar enough with the neighbour code to be able to
tell. I guess I can experiment with it. You generally know pretty quick
if ARP isn't working.

rtg
-- 
Tim Gardner tim.gardner at canonical.com