[Solved]multiple OpenVPN Instances on same Win Server 2012R2

emjaygr

Hi everybody

I hope somebody may help me with my Server Setup.

We have a running config with OpenVPN. This is working and Clients are connecting.

now we want to add a second instance for other clients and therefore I created another config-file for these Clients.

I've also installed an additional TAP-Windows Adapter named 'open_vpn_2'

when I start each instance alone - they are both working.
But when I want to have both configs running the same time I get this error Message while I start the second config-file:
Wed Apr 29 15:17:12 2015 us=861628 TAP-Windows adapter 'open_vpn_2' not found
Wed Apr 29 15:17:12 2015 us=861628 Exiting due to fatal error

Any help would be very appreciated!

below you will see both config files.

Thanks,
Martin

Config1:
local 10.254.253.11
port 443keep
proto udp
dev tun
dev-node open_vpn
ca C:\\Programme\\OpenVPN\\server-keys\\ca.crt
cert C:\\Programme\\OpenVPN\\server-keys\\xxxxxxx.crt
key C:\\Programme\\OpenVPN\\server-keys\\xxxxxxx.key
dh C:\\Programme\\OpenVPN\\server-keys\\dh1024.pem
server 10.8.0.0 255.255.0.0
ifconfig-pool-linear
push "route 10.254.253.0 255.255.255.0"
push "dhcp-option DNS 10.8.0.1"
push "ip-win32 dynamic 0 172800"
client-to-client
duplicate-cn
ping 5
ping-restart 120
comp-lzo
persist-key
persist-tun

Config2
local 10.254.253.15
port 443keep
proto udp
dev tun
dev-node open_vpn_2
ca C:\\Programme\\OpenVPN\\server-keys\\ca.crt
cert C:\\Programme\\OpenVPN\\server-keys\\xxxxxxx.crt
key C:\\Programme\\OpenVPN\\server-keys\\xxxxxxx.key
dh C:\\Programme\\OpenVPN\\server-keys\\dh1024.pem
server 10.9.0.0 255.255.0.0
ifconfig-pool-linear
push "route 10.254.253.0 255.255.255.0"
push "dhcp-option DNS 10.9.0.1"
push "ip-win32 dynamic 0 172800"
client-to-client
duplicate-cn
ping 5
ping-restart 120
comp-lzo
persist-key
persist-tun
status openvpn-status-2.log
log openvpn2.log
verb 6

maikcat

can you post the output of:

netsh interface show interface

Michael.

emjaygr

Hi Michael

of course, here we go:

PS C:\Users\Administrator> netsh interface show interface

Verw.-status Status Typ Schnittstellenname
-------------------------------------------------------------------
Aktiviert Verbunden Dediziert open_vpn
Aktiviert Getrennt Dediziert open_vpn_2
Aktiviert Verbunden Dediziert 01 intern
Aktiviert Verbunden Dediziert 02 intern

Martin

emjaygr

Hi Michael,

of course. here is the Output:

PS C:\Users\Administrator> netsh interface show interface

Verw.-status Status Typ Schnittstellenname
-------------------------------------------------------------------
Aktiviert Verbunden Dediziert open_vpn
Aktiviert Getrennt Dediziert open_vpn_2
Aktiviert Verbunden Dediziert 01 intern
Aktiviert Verbunden Dediziert 02 intern

Martin

emjaygr

may I kindly ask if somebody has an idea?

does anybody knows if this should work in general?

regards,
Martin

Traffic

In general it should work but clearly it does not.

The way I do this with windows is as follows:

WXP+OVPN236(i003:NDIS-5)

W7+OVPN236(i603:NDIS-6)

Name Windows Tap Adapter #1: tun01
Name Windows Tap Adapter #2: tun02

Config #1:

dev tun
dev-node tun01

Config #2:

dev tun
dev-node tun02

This works for me, maybe you can try it ..

emjaygr

Hi everybody

I could resolve this issue. Looks like there was something with the second TAP-Device.
I removed all devices and installed the tap-Windows Drivers from here again: https://openvpn.net/index.php/open-source/downloads.html
After updating to the Version 2.3.6 I tried again to start both tunnels and they worked.

Thanks for help
Martin