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 From:  Chris Buechler <cbuechler at gmail dot com>
 Cc:  m0n0wall at lists dot m0n0 dot ch
 Subject:  Re: [m0n0wall] VPN tunnel between two monowalls
 Date:  Sat, 23 Jul 2005 17:12:44 -0400
On 7/23/05, Brian <mono at ricerage dot org> wrote:
> > Hi
> >
> > If I make a tracert to a IP on my work LAN for Home LAN it stops at my
> > Home
> > monowall address
> > Then It don't help to add my home subnet to my default gateway at work
> > does it ?
> >
> > / Karsten
> 
> 
> Hi Karsten,
> 
> I believe I understand the source of the confusion. Please refer to the
> following:
> 
>
http://www.amazon.com/exec/obidos/tg/detail/-/0764516779/qid=1122152609/sr=8-4/ref=pd_bbs_4/102-6133392-4577741?v=glance&s=books&n=507846
> 

haha  

In other words, ADD THE ROUTE AND STOP QUESTIONING WHAT I'M TELLING
YOU.  This is basic IP routing stuff, of course you need the route. 
Your servers don't magically know that your subnet goes through
something other than their default gateway, and their default gateway
router doesn't know that your subnet isn't through its default
gateway, i.e. on the internet.  Add it, it will work.  The end.

a normal traceroute across a working VPN has the remote m0n0wall as a
missing hop.

traceroute to 10.0.X.33 (10.0.X.33), 64 hops max, 40 byte packets
 1  10.0.Y.1 (10.0.Y.1)  1.154 ms  1.057 ms  1.011 ms
 2  * * *
 3  10.0.X.33 (10.0.X.33)  51.182 ms  52.565 ms  45.999 ms

-Chris