Site-to-Site VPN ER605 Router with Airtel Fiber Router
Hello everyone,
We are in planning to implement Site-to-Site (LAN-to-LAN) VPN to connect our two offices.
Head Office: It has ISP connection on CAT6 so I can plug that directly into TL-ER605 VPN Router and can configure ISP settings in it. We do have one static IP.
Branch Office: We have Airtel fiber connection terminated on GPON router with a static IP address. For Site-to-Site VPN, if we put TL-ER605 VPN Router here, what setting should I need to check on Airtel router (because, we can not remove that GPON router) and where this VPN router should be placed?
Regards,
Sagar Patel