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OpenVPN clients cannot connect to LAN computers.

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MNBob

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OpenVPN clients can connect to ASUS RT-AC68U router running ASUSWRT-Merlin 386.13 firmware. I have added the following entry in Advanced>Advanced>Custom Configuration with the quotes as shown

push "route 10.100.0.0 255.255.255.0 192.168.0.30" (192.168.0.30 is the LAN IP of the ASUS router)

10.100.0.0/24 is the subnet for VPN clients.
The customer site is using 192.168.0.0/24. (Bad, I know) We will be addressing that this summer.
Their default Gateway is 192.168.0.1 and is using an Adtran NetVanta 3140 with the Enhanced Feature Package.
They have 5 usable static public IP addresses, the NetVanta is on X.X.X.202 and the ASUS is on X.X.X.204.
DHCP is being handled by their Windows Server on the local subnet. 192.168.0.0/24
As mentioned above. the ASUS router is 192.168.0.30. I tried to push that IP address as a default gateway for the OpenVPN connections but it still does not provide communication to LAN computers.

I am not well versed with the Adtran NetVanta. I am lead to believe that I might need to create a route there as it is the default gateway and I need it to push traffic destined to 10.100.0.0/24 to the ASUS on 192.168.0.30.

Is there an easier way to do this? The customer currently has NCP VPN licenses for their Windows clients. I am making the changes above because they want to connect with iPads and Samsung tablets. Apple has deprecated TAP connections and I cannot import a profile to the OpenVPN APP on an iPad.
 

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