USG 60 L2TP IPsec VPN not working from local LAN2
Recently users asked my if they can connect to our VPN from our company WIFI.
The company LAN (LAN1) and the company WIFI (LAN2) are both connected to our usg60 which handles all traffic to and from the internet. VPN L2TP IPsec is already set up and working via the WAN port of the usg60 and lands inside of LAN1 in a new subnet. A few details:
WAN: <WAN IP> (Landing IP for VPN connections)
LAN1: 10.0.0.X + 10.0.1.X (for VPN clients)
I tried working out how to enable users to connect to the VPN from our LAN2 as well, but am stuck. When clients try to connect via normal VPN settings, they run into an error 789 on both Win7 and Win10. Now I found this thread: https://businessforum.zyxel.com/discussion/878/usg-110-l2tp-vpn-behind-companion-nat-firewall but it's not really the same as there isn't any NAT between LAN2 and WAN, but there is between LAN2 and LAN1 of course. I also checked the policies and didn't find anything that looked like it would prevent traffic from LAN2 to WAN.
What am I missing here? How can users connect to VPN from another internal LAN?
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