Routing problems on VPN servers running FreeBSD 8.0-RELEASE

[Li, Qing]

>
> The problems seem to be that (a) proxy ARP doesn't get set
> up in either the ARP table or the routing table, and 
>

Proxy ARP entries are not installed into the routing table.

I believe I have fixed this issue in svn r201282 and merged 
into 8-STABLE

http://svn.freebsd.org/viewvc/base?view=revision&revision=201282

http://svn.freebsd.org/viewvc/base?view=revision&revision=201614

The keyword "only", as documented in the manpage, requires a
host route to be present or else the proxy arp command will fail.
I can forward you an offline exchange I had with Juergen Lock
on this subject.

>
> (b) the PPP
> daemon can't create or destroy many of the routes that the
> connections need to work.
>

The above patch also include fixes for routing related problem as 
you will note in the commit message, although I am uncertain if
your problems fall into this category.

> 
> I can't believe that a version of a major operating system shipped
> without the ability to do PPP, but apparently that's the case!
> 

Various users reported problems in the vpn/ppp area and those
were addressed before the release.

Given the diverse usage of the operating system, it's fair to say
that I try my best to perform the necessary test coverage, but
it's difficult to be inclusive of all scenarios.

In any case, I am here to work with you to resolve your issues
as quickly as I can.

-- Qing