DHCP: ARP issue, FR2.x vs FR 3.x

Fajar A. Nugraha list at fajar.net
Fri Jan 13 17:45:44 CET 2012

On Fri, Jan 13, 2012 at 10:17 PM, Alan DeKok <aland at deployingradius.com> wrote:
> Fajar A. Nugraha wrote:

>> Second, there's still no packet sent to the client. And there's
>> nothing in the debug log about updating
>> ARP cache. FR debug log (starting from dhcp section):
>  It doesn't print a debug message, but you can add one.  See
> src/main/dhcpd.c, look for "arp".
>> If I manually force add arp entry using "arp -i dummy1 -s
>> 08:00:27:a2:13:b9", then it works. Looks like there's
>> still problem in arp cache update code.
>  I don't have time to test this myself.

Setting "user=root" in radiusd.conf fixed the problem.
Weird, since FR3 works just fine running as freerad, and it didn't
even have cap_net_admin set.

That's good enough for now though. Thanks. Will try some other tests.


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