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Site-to-Site VPN ER605 Router with Airtel Fiber Router

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Site-to-Site VPN ER605 Router with Airtel Fiber Router

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.

sagar002100

2023-05-09 07:14:50

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Registered: 2020-06-06

Site-to-Site VPN ER605 Router with Airtel Fiber Router

2023-05-09 07:14:50

Tags:

Model: ER605 (TL-R605)

Hardware Version: V2

Firmware Version:

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

2 Reply

Virgo

LV5

2023-05-10 02:52:57

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Registered: 2021-05-10

Re:Site-to-Site VPN ER605 Router with Airtel Fiber Router

2023-05-10 02:52:57

@sagar002100

Hi, suggest you check the configuration FAQ first to learn some details.

If you need to put the ER605 in the Branch Office network, suggest the connection is GPON router--- ER605----Clients.

And here will be the double NAT in this network, so you need to open the port for R605's WAN IP on the GPON router.
And if you use the IPsec VPN, need to open UDP 500, UDP 4500.

Then when the VPN client try to connect to the VPN server, you need to type in the GPON router's WAN IP (not R605's) on the VPN client router.

Just striving to develop myself while helping others.

d0ugmac1

LV5

2023-05-11 15:30:37

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Re:Site-to-Site VPN ER605 Router with Airtel Fiber Router

2023-05-11 15:30:37

@sagar002100

You may have some additional options. Quickest is to make the ER605's IP the DMZ IP on the GPON modem, that effectively makes all public IP ports arriving at the GPON modem available as if they arrived on the WAN port of the ER605.

You may also be able to establish a connection within a connection by configuring your PPPoE account settings currently configured on the GPON modem on a WAN port of the ER605 and then connecting that WAN port to a LAN port on the GPON modem. This may enable you to get a static IP via PPPoE directly on the ER605.

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Site-to-Site VPN ER605 Router with Airtel Fiber Router

Site-to-Site VPN ER605 Router with Airtel Fiber Router

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