Network A:Asus N66U router
Firmware: : 374.43_2-16E1j9527 (FORK)
10.40.46.X
Subnet: 255.255.255.0
Network B:Asus N66U router
Firmware: : 374.43_2-16E1j9527 (FORK)
10.40.44.X
Subnet: 255.255.255.0
Background information:
IP-description:I hoped to create a unique IP range, because VPN won’t work if the server and client are in the same range. Most ISP here deliver IP ranges in the 192.168.X.X range, also my stock ISP modem. Now I replaced the stock ISP modem with a N66U router. My friend did the same , and created network B.
10.x.x.x Class A network, x.40.x.x is the region number, and x.x.46.x is my home number. Now it happened that my friend moved in the same region, a year later. He almost has the same home number (44). That’s the reason that network A and network B are almost identical.
Open-VPNI created a OpenVPN server in my Asus N66U Router at Network A, and connected with the OpenVPN client in the N66U router at network B. Using an AES encryption. The site to site (or Bridge) VPN network works correct and is connected.
Problem:
On my local LAN I receive IP addresses in the 10.40.44.X range on all my devices connected to my WIFI.
I understood that this is normal behavior of OpenVPN, but I want my local devices to receive an IP of my local DHCP server.
I found a work-around for this issue:
Adding the following firewall script with the name Firewall-start to the JFFS folder.
http://www.snbforums.com/threads/openvpn-site-to-site-with-asus-merlin.11097/#post-73277
This script is working correct! All my devices get an ip of my local DHCP Server. Now the problem occurred: All the local devices connected on Network B get a IP via the DHCP server from Network A.
What I can do is add the Same firewall script to the JFFS folder of the Network B router, that will work but won’t solve the issue. It is still a work around.
Is there a possibility to solve this issue in the Open VPN server at Network A itself? So that each site uses its own local DHCP server? do not want to add the same firewall script the the router of Network B or a new router in the future. It must work without changes to network device. Maybe i can solve this by adding a custom script at the OpenVPN server.
The log at Network A Server:
The Log at network B Client:
When Network A received the wrong local IP address
Error: wrong server-ID and wrong network are now on the router of Network B. Before I applied the workaround on Network A, the errors where logged in the router of Network A.
Hopefully there is a solid solution for this.
Second question: Can i access all resources at both sites if Network A and Network B using their local DHCP?
Thanks!
Firmware: : 374.43_2-16E1j9527 (FORK)
10.40.46.X
Subnet: 255.255.255.0
Network B:Asus N66U router
Firmware: : 374.43_2-16E1j9527 (FORK)
10.40.44.X
Subnet: 255.255.255.0
Background information:
IP-description:I hoped to create a unique IP range, because VPN won’t work if the server and client are in the same range. Most ISP here deliver IP ranges in the 192.168.X.X range, also my stock ISP modem. Now I replaced the stock ISP modem with a N66U router. My friend did the same , and created network B.
10.x.x.x Class A network, x.40.x.x is the region number, and x.x.46.x is my home number. Now it happened that my friend moved in the same region, a year later. He almost has the same home number (44). That’s the reason that network A and network B are almost identical.
Open-VPNI created a OpenVPN server in my Asus N66U Router at Network A, and connected with the OpenVPN client in the N66U router at network B. Using an AES encryption. The site to site (or Bridge) VPN network works correct and is connected.
Problem:
On my local LAN I receive IP addresses in the 10.40.44.X range on all my devices connected to my WIFI.
I understood that this is normal behavior of OpenVPN, but I want my local devices to receive an IP of my local DHCP server.
I found a work-around for this issue:
Adding the following firewall script with the name Firewall-start to the JFFS folder.
http://www.snbforums.com/threads/openvpn-site-to-site-with-asus-merlin.11097/#post-73277
This script is working correct! All my devices get an ip of my local DHCP Server. Now the problem occurred: All the local devices connected on Network B get a IP via the DHCP server from Network A.
What I can do is add the Same firewall script to the JFFS folder of the Network B router, that will work but won’t solve the issue. It is still a work around.
Is there a possibility to solve this issue in the Open VPN server at Network A itself? So that each site uses its own local DHCP server? do not want to add the same firewall script the the router of Network B or a new router in the future. It must work without changes to network device. Maybe i can solve this by adding a custom script at the OpenVPN server.
The log at Network A Server:
The Log at network B Client:
When Network A received the wrong local IP address
Error: wrong server-ID and wrong network are now on the router of Network B. Before I applied the workaround on Network A, the errors where logged in the router of Network A.
Hopefully there is a solid solution for this.
Second question: Can i access all resources at both sites if Network A and Network B using their local DHCP?
Thanks!
Last edited:
