Dear all, I do not understand exactly how I can create a VPN with two subnet: My Openopen vpn server actually is working correctly using ony the subnet 10.8.0.x and now I would like to extend it using other client subnet (10.8.1.x): I'm using a routed vpn consequently I've modified the server conf in this way : server.conf [list]topology subnet server 10.8.0.0 255.255.252.0 route 10.8.0.0 255.255.252.0 route 10.8.1.0 255.255.252.0 client-to-client client-config-dir ccd[/list] then in the folder ccd I've add client1 with the following line. [list] ifconfig-push 10.8.1.3 255.255.255.0[/list] Can someone explain what I'm wrong? Best regards Matteo

[url=http://openvpn.net/index.php/open-source/documentation/howto.html#scope]HOWTO: Expanding the scope of the VPN to include additional machines[/url]

I have no idea what you are trying to do .. This:[quote="ueo"]server.conf [list]topology subnet server [b]10.8.0.0[/b] 255.255.252.0 client-config-dir ccd[/list] then in the folder ccd I've add client1 with the following line. [list]ifconfig-push [b]10.8.1.3[/b] 255.255.255.0[/list][/quote]will [b]not[/b] work ..

[quote="ueo"]In theory should be enought using the netmask 255.255.0.0[/quote]Yes .. provided you do it right ! May be you need to learn how subnet masks work.

[Solved] Class B subnet for VPN

ueo

Dear all,
I do not understand exactly how I can create a VPN with two subnet:
My Openopen vpn server actually is working correctly using ony the subnet 10.8.0.x and now I would like to extend it using other client subnet (10.8.1.x):
I'm using a routed vpn consequently I've modified the server conf in this way :
server.conf

topology subnet
server 10.8.0.0 255.255.252.0
route 10.8.0.0 255.255.252.0
route 10.8.1.0 255.255.252.0
client-to-client
client-config-dir ccd

then in the folder ccd I've add
client1 with the following line.

ifconfig-push 10.8.1.3 255.255.255.0

Can someone explain what I'm wrong?

Best regards
Matteo

TinCanTech

HOWTO: Expanding the scope of the VPN to include additional machines

ueo

Thanks lot, but I've already read this link. But I don't need to connect the LAN beside my client. I'd like to split the client IP in two different subnet, may be I don't understand correctly.
Client1 10.8.0.3 (this lan has only this PC)
Client2 10.8.1.5 (this lan has only this PC)

Now I configure the client2 whit the correct ip number , but client 2 cannot reach the server 10.8.0.1. Seems I'm wrong something in the pushed routing table.

Best regads

TinCanTech

I have no idea what you are trying to do ..

This:

ueo wroteserver.conf
topology subnet
server 10.8.0.0 255.255.252.0
client-config-dir ccd
then in the folder ccd I've add client1 with the following line.
ifconfig-push 10.8.1.3 255.255.255.0

will not work ..

ueo

Hi TinCanTec my simple question is:
How can I use more then 256 Ip number in my VPN? this is what is not clear to me.
Actually I've a VPN lan from 10.8.0.0 to 10.8.0.254, how can increase the number of IP adding also the subnet 10.8.1.0 to 10.8.1.254? In my setup i need to connect directly any single PC to the server. Consequently I'de like to have
client1 -> 10.8.0.3
client2 -> 10.8.0.4
[...]
client(n) -> 10.8.0.254
client(n+1) -> 10.8.1.1

Should I must use another OpenVpn instance?

In theory should be enought using the netmask 255.255.0.0, isn't ?
Thank's you for your patience.

Best regards
Matteo

TinCanTech

ueo wroteIn theory should be enought using the netmask 255.255.0.0

Yes .. provided you do it right !

May be you need to learn how subnet masks work.

ueo

I found in my configuration one lost route command
route 10.8.0.0 255.255.255.0 that probably broke my routing table i suppose I've previously removed 🙂
so my configuration now is:

server 10.8.0.0 255.255.0.0
in the server.conf the is no routing command

and the ccd folder

client1 contain
ifconfig-push 10.8.1.2 255.255.0.0

Thanks you!