.. aka split routing with Softether
Routing all traffic through a VPN connection can slow down internet speed. Many times you want to access remote resources only. Most internet traffic is encrypted anyway.
Here is a tutorial on how to configure SoftEther for split routing.
In this example we have the following configuration:
Remote network:
Router IP address: 192.168.178.1 <- the remote PC 192.168.178.92 is connected via DSL to the internet
Server IP address: 192.168.178.29 <- this is the PC we want access over VPN
1.) Click on Manage virtual hub
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2.) Go to the virtual hub settings
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3.) Enable SecureNAT and click on SecureNAT configuration
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4.) Here is the secure NAT configuration.
Reminder: The remote network we want to access has the ip range:
192.168.178.1 – 192.168.178.254
The VPN clients are in a neighbour network within the DHCP ip range
192.168.179.10- 192.168.179.200
The virtual vpn server host listens to connections on : 192.168.179.1
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5.) Set up split tunneling
click on ‘Edit the static routing table to push’
We want to access 192.168.178.29 (the remote server)
So, we tell the VPN clients how they find a route to this address:
Access ip range 192.168.178.0 – 192.168.178.254 over the virtual VPN gateway 192.168.179.1
The syntax for SoftEhter is:
192.168.178.0/255.255.255.0/192.168.179.1
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Click: Enable virtual SecureNAT
Configure Windows 10 clients
Follow the pictures below to untick: Use default gateway on remote network
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Configure iOS clients
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Configure Android clients
Go to VPN settings on your Android device
Configure forward routing (sometimes you have to enable show advanced options first)
We want to access IP network: 192.168.178.1 – 192.168.178.254
Forward route for this is: 192.168.178.0/24
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