re [KLUG Members] OpenVPN & DHCP

[Mike Williams]

>
>
>Hi Mike,
>
>Thanks for explaining that.  I think I understand now.  I didn't realize
>the vpn network was a sort of "virtual" ip range on a "virtual"
>adapter.  Would the tun0 interface show up, then, on something like
>ifconfig?
>  
>
Yes.  It reports something strange as a MAC address, but otherwise looks 
like a normal interface.

>The VPN IP address range in server.conf just needs to be a private range
>that doesn't exist on either client or server LAN?  
>  
>
Yes again.

>Is there a possible problem if the two LANs (client & server) have
>similar ip addresses?  For example, if the client is on a 192.168.0.x
>range and the server is also on a 192.168.0.x range does that create any
>sort of problem?
>
>  
>
Probably.  If you're really good with IPtables it might be possible to 
create some address-mangling that will avoid conflicts, but it'll be 
messy at best.  You'd be better off to create non-overlapping IP ranges.