I think I am following all the docs and forum post suggestions but I just can't 
seem to get site to site OpenVPN connections to work. I have a feeling I'm 
missing something obvious (or doing something really stupid). 

Here is my test setup - four machines... 

System A 
- Ubuntu 7-10 
- IP: 192.168.2.2 
- Gateway: 192.168.2.1 

System B 
- eBox 0.11.99 
- Int IP: 192.168.2.1 
- Ext IP: 192.168.4.2 
- DHCP running - serving: 192.168.2.2 - 192.168.2.10 
- OpenVPN service running and active 
- CA established 
- certificates generated for self and system C 
- VPN network address: 192.168.3.0 
- VPN network netmask: 255.255.255.0 
- OpenVPN network advertised: 192.168.2.0/255.255.255.0 
- Protocol: TCP 
- Port: 1194 
- Client authorization by common name: disabled 
- Allow eBox-to-eBox tunnels: checked 
- Allow client-to-client connections: not checked 
- OpenVPN Interface: eth1 (external - 192.168.4.2) 

System C 
- eBox 0.11.99 
- Ext IP: 192.168.4.3 
- Int IP: 192.168.5.1 
- DHCP running - serving: 192.168.5.2 - 192.168.5.10 
- OpenVPN service running and active 
- OpenVPN client config 
- OpenVPN server address: 192.168.4.2 
- OpenVPN server protocol: TCP 
- OpenVPN port: 1194 
- CA certificate set to that from system B 
- Client certificate set to that generated from system B 
- Client private key set to that generated from system B 

System D 
- Ubuntu 7-10 
- IP: 192.168.5.2 
- Gateway: 192.168.5.1 

In the OpenVPN logs on system B I get 
Event: Client connection initiated 
Daemon: SystemB 
Type: server 
Remote IP: 192.168.4.3 
Remote Certificate: systemc.testdomain.net 

System A can ping 192.168.2.1 (eBox B int) 
System A can ping 192.168.4.2 (eBox B ext) 
System A can ping 192.168.4.3 (eBox C ext) 
System A cannot ping 192.168.5.1 (eBox C int) (Destination Host Unreachable) 
System A cannot ping 192.168.5.2 (System D) (Destination Host Unreachable) 

System D can ping 192.168.5.1 (eBox C int) 
System D can ping 192.168.4.3 (eBox C ext) 
System D can ping 192.168.4.2 (eBox B ext) 
System D cannot ping 192.168.2.1 (eBox B int) (Packets just dropped - no error 
message) 
System D cannot ping 192.168.2.2 (System A) (Packets just dropped - no error 
message) 

There are no firewall rules set in any section. 

Do I need to create a firewall rule on eBox B to allow traffic from 
192.168.3.0/24 to 192.168.2.0/24? 
Do I need to create a firewall rule on eBox B to allow traffic from 
192.168.2.0/24 to 192.168.3.0/24? 
Do I need to create a firewall rule on eBox B to allow traffic from 
192.168.2.0/24 to 192.168.5.0/24? 
Do I need to create a firewall rule on eBox B to allow traffic from 
192.168.3.0/24 to 192.168.5.0/24? 
Do I need to create a firewall rule on eBox C to allow traffic from 
192.168.5.0/24 to 192.168.2.0/24? 
Do I need to create a firewall rule on eBox C to allow traffic from 
192.168.5.0/24 to 192.168.3.0/24? 

Everything seems like it should work - but it doesn't. Any suggestions would be 
greatly appreciated. 

If I can get this to work - if there is a way, I would like to volunteer to 
help improve the documentation - particularly the section on OpenVPN and CA. 
The documentation doesn't appear to be set up as a wiki so not sure how to 
submit changes or updates. 

Thanks, 

Eric 


Eric Baenen 
[EMAIL PROTECTED] 
www.baenen.com 
www.washingtoncreek.com 

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