Note that updating ARP must be done as root

diff --git a/raddb/sites-available/dhcp b/raddb/sites-available/dhcp
index 00e5f65..2862b42 100644 (file)
--- a/raddb/sites-available/dhcp
+++ b/raddb/sites-available/dhcp
@@ -168,6 +168,10 @@ server dhcp {
                #  MAX and IP of the DHCP client.  The server can then
                #  send a normal UDP unicast socket.
                #
+               #  NOTE: The server MUST be running as "root" in order
+               #  to update the ARP table.  Or, it must have the
+               #  apropriate capabilities added to it after it starts up.
+               #
                src_interface = ${..interface}
        }