net/mpd5, ppp, proxy-arp issues

Hi,

Recently there have been several reports regarding issues with ppp, mpd5
and proxy-arp configuration over the ppp links. I read through the
various postings and the problems seem to be:

1. Unable to add proxy-arp entries for the remote ppp clients.

2. Log showing "ifa_add_loopback_route: insertion failed" causing 
   some userland applications to fail.

May I ask that you try applying patch

  http://people.freebsd.org/~qingli/ppp-proxy-arp-patch-121515.diff

and report back if the patch fixes your problems. And if not, 
please describe what additional issues you are having.

Thanks,

-- Qing