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 From:  "Barry Mather" <barry dot mather at dorecentres dot com dot au>
 To:  <m0n0wall at lists dot m0n0 dot ch>
 Subject:  RE: [m0n0wall] Private site to site IPSEC VPN
 Date:  Tue, 8 Feb 2005 14:27:46 +1100
I use do something similar with my offices in the uk ...

I have block EVERYTHING from getting to the wan from the lan interface,
and have a proxy server at HQ, all clients use the proxy server to surf
via ipsec vpn, this means I only have to have 1 proxy, 1 antispam server
etc etc however, it does increase load on the hq connection ..

Just chuck a squid box in, that'll do the job for you ... and easy to
config too

-----Original Message-----
From: Louis Koutsovitis [mailto:louis dot koutsovitis at senecac dot on dot ca] 
Sent: Tuesday, 8 February 2005 1:05 PM
To: Fred Wright
Cc: m0n0wall at lists dot m0n0 dot ch
Subject: Re: [m0n0wall] Private site to site IPSEC VPN

Thanks for the suggestion, we tried everything we could but the Internet

traffic still missed the VPN tunnel. OPENVPN looks like it has the 
feature we need, we will be testing that next. The purpose of routing 
WAN traffic through the tunnel is to provide the same firewall, 
antispam, spyware and other vulnerability protection (from the Internet)

to the small branch office network as is provided to the main campus 
network, using a less expensive DSL link. If it doesn't work we go back 
to the point to point ISDN service.


Fred Wright wrote:

>On Sat, 5 Feb 2005, Vincent Fleuranceau wrote:
>>>Is it possible to create a private site to site IPSEC VPN over the 
>>>internet between two points with Monowall. We are trying to route all

>>>packets from a small branch office over a VPN on the internet to a
>>>campus regardless of the destination, emulating a point to point
>>>We are using DSL link for the office and a dedicated Internet
>>>for the main campus. Using 1.2b3 we created a tunnel between the two 
>>>locations but any packets from the office destined for the Internet
>>>not making it to the campus Monowall server, they are hitting the
>>>Monowall server and then being routed directly to and from the
>>>Packets to and from the main campus do travel over the IPSEC tunnel.
>>>Is this possible with Monowall?
>>Being able to bind your default route to a dedicated interface would
>>help, but unfortunately IPsec implementation in m0n0wall does not use
>>such a special interface... (NOTE: you may have the same limitation
>>other IPsec implementations, not only with racoon/m0n0wall)
>It may work to specify as one tunnel endpoint to get this
>effect.  But this could be dangerous if IPsec is applied recursively
>(though it should escape as long as the WAN IP is outside the tunnel
>range).  It would also become important for m0n0wall's internal
>for m0n0wall<->LAN" policy to take precedence (i.e. be earlier).
>>In conclusion, only traffic destined to the remote LAN can be routed
>>through the tunnel.
>Though the question arises as to why routing WAN traffic through the
>tunnel is considered desirable.
>					Fred Wright
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