How to avoid unexpected routing issues when enabling both IPsec VPN and L2TP VPN simultaneously?
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Zyxel_Jeff
Posts: 1,350 
Zyxel Employee
Zyxel Employee
in VPN
Scenario :
The user may need to enable both IPsec VPN and L2TP VPN remote settings simultaneously. How can unexpected routing issues be avoided when enabling both IPsec VPN and L2TP VPN at the same time?
Answer :
STEP1. Navigate to Site-wide > Configure > Firewall > Remote access VPN
STEP2.Please ensure their Client VPN subnet range is different. For instance, set the IPSec VPN server's Client VPN subnet to 192.168.110.0/24 and L2TP VPN server's
Client VPN subnet to 192.168.111.0/24, as shown below:
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