[ale] OpenVPN test

[Brian MacLeod]

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> I've picked a piece of 10.0.9.0 for VPN clients.  I make one connection
> from Winblows and on the server I have a tun0
> 
> inet addr:10.0.9.225  P-t-P:10.0.9.226
> 
> On the client I have:
> 
> inet addr:10.0.9.230  P-t-P:10.0.9.229
> 
> What happened to 227 and 228?  Why does each interface use 2 addresses.
> Obviously this is the way it is but you could eat up a class C very
> quickly with inefficient use of address.
> 
> On the PPP based VPN I have 12 right now going on the same server.  I
> use 10.0.9.2 as the server side and then I use 10.0.9.3->200 for the
> clients.  This is very efficient use of addresses since the peer of each
> client is 10.0.9.2! 
> 
> 


Not sure what happened to 227/228.  However, the four address bit is
explained (sort of) here:

http://openvpn.net/index.php/open-source/faq/77-server/273-qifconfig-poolq-option-use-a-30-subnet-4-private-ip-addresses-per-client-when-used-in-tun-mode.html

Apparently, this is an additional cost of using Windows clients.

Brian

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