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[Openvpn-users] how-to realise mixed circular vpn and star vpn


  • Subject: [Openvpn-users] how-to realise mixed circular vpn and star vpn
  • From: Rémi Gauthier <production@xxxxxxxxx>
  • Date: Thu, 08 Mar 2007 08:56:05 +0100

Hi

in star configuration, B & C & D satellite sites are connected with A  
head-company  site (company email server) with openvpn client

A is 192.168.10.0/24 bigger site
B is 192.168.1.0/24 large site
C is 192.168.2.0/24 large site
D is 192.168.3.0/24 small site

in A openvpn.conf
--------------------------------------
client-to-client
#B & C & D  route for their C class
route 192.168.1.0 255.255.255.0
push "route 192.168.1.0 255.255.255.0"
route 192.168.2.0 255.255.255.0
push "route 192.168.2.0 255.255.255.0"
route 192.168.3.0 255.255.255.0
push "route 192.168.3.0 255.255.255.0"

in ccd/B-login
--------------------------------------
iroute 192.168.1.0 255.255.255.0

and idem for C & D ccd/login

all vpn works fine but ...
all traffic in/out from A site ! bandwith problems
There is a backup between B & C
B & C are in same FAI network, but different from A

==>> so i test to create 1 openvpn directly between B & C

but before creating an other B to C direct openvpn, i should  
deactivate routing via A

actually, i receive

in B
i receive C route via A
in C
i receive B route via A

==>> HOW-TO deactivate routing transmission for B & C but transmit  
route for D ???

A route to B,C & D
B route to A + B route to C directly
C route to A + C route to A directly
D route to A, B & C via A

I have tested to deactivate routing between B to C via iroute in B &  
C ccd/login
so B & C doesn't receive route to C & B

but all traffic between A=B and C=A is dropped
Fri Mar  2 12:30:05 2007 us=350349 B-site/B-IP-site MULTI: bad source  
address from client [192.168.1.1], packet dropped

Thank's a lot for your help


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