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[Openvpn-users] How to avoid IP duplication?


  • Subject: [Openvpn-users] How to avoid IP duplication?
  • From: "Monty Ree" <chulmin2@xxxxxxxxxxx>
  • Date: Wed, 01 Nov 2006 08:08:26 +0000

Hello, all.

I have used OpenVPN server(linux) and Windows (client) using same cert 
file.
The number of the clients are over 50 and I would like to assign each ip 
address per client statically not dynamically.

For example,

Client A : 192.168.1.10
Client B : 192.168.1.11 
......

But If Client A connected and using 192.168.1.10, 
some days later if Client B mistakely set VPN ip address to 192.168.1.10 
statically and connect, 
Client B takes the IP(192.168.1.10) and Client A disconnected...

So is there any method to avoid this IP duplication when using same cert 
files?
I have thought that I would set mac & ip address like below at openvpn 
server..

# arp -s 192.168.1.1 Client_A_MAC

But, mac address is changing when I reconnect the VPN.
Is there any method to set  Mac address??

openvpn : OpenVPN 2.0.5
using tap mode..


Thanks....

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