My IP address with and without OpenVPN?

Michael7

Greetings,
now I have installed my first OpenVPN installation on my windows derver 2012 essential and on my notebook.

If I show my IP addresse on http://showip.net without running OpenVPN, I get an IP.
Now I turn on the OpenVPN and I have a tunnel to my server in my office. The router in my office has another IP address in the internet.
Now I show the homepage http://showip.net again and I see the same IP address at the first access!?
I would have not seen there a different IP address?
Regards
Michael

Michael7

Thank you!
Here is my server config:

# Zertifikate
ca "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\ca.crt"
cert "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\FREServer.crt"
key "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\FREServer.key"
dh "C:\\Program Files\\OpenVPN\\easy-rsa\\keys\\dh1024.pem"

# Server und Netzwerk
local 10.0.0.3 #LAN-Adresse des Servers
port 1194
proto udp
dev tap
server 10.0.0.0 255.255.255.0 #Subnetz
ifconfig-pool-persist ipp.txt
comp-lzo
persist-key
persist-tun
keepalive 10 120

# Log
status "C:\\Program Files\\OpenVPN\\log\\openvpn-status.log"
log "C:\\Program Files\\OpenVPN\\log\\openvpn.log"
log-append "C:\\Program Files\\OpenVPN\\log\\openvpn.log"
verb 3

And here my client config:

# Zertifikate
ca "C:\\Program Files\\OpenVPN\\config\\ca.crt"
cert "C:\\Program Files\\OpenVPN\\config\\MichaelNotebook.crt"
key "C:\\Program Files\\OpenVPN\\config\\MichaelNotebook.key"

# Client-Setup
client
dev tap
proto udp
remote test.dyndns.org 1194 #Hostname anpassen
resolv-retry infinite
nobind
persist-key
persist-tun
route-metric 512
route 0.0.0.0 0.0.0.0
comp-lzo
verb 3

Thank you for your hints!

Michael7

Thank you for the link.

If your VPN setup is over a wireless network, where all clients and the server are on the same wireless subnet, add the local flag:
push "redirect-gateway local def1"

My Server is in a wireless network, so I insert this command in the server config.

On Linux, you could use a command such as this to NAT the VPN client traffic to the internet:
iptables -t nat -A POSTROUTING -s 10.8.0.0/24 -o eth0 -j MASQUERADE

My server is not a linux server, I have a Windows Server 2012 Essential.
What for a command must I additonal add in the server config?

What should I make for a setting on my windows client?
Regards
Michael