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Site to site VPN behind ISP modem

LERod

3 weeks ago - last edited 2 weeks ago

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Registered: 2024-09-23

Site to site VPN behind ISP modem

3 weeks ago - last edited 2 weeks ago

Tags: #VPN #WireGuard

Model: ER7206 (TL-ER7206)

Hardware Version:

Firmware Version:

Hi,

Trying to setup a site to site VPN, one end is behind an ISPs modem. Connecting to the ER7206 routers over Cloud Managment OC200 controllers.

Based on previous experience with other brands, I would setup the Warehouse in Initiator Mode and the HQ in Responder Mode and that would be that. Is there anyway to have the Remote Gateway IP address on the Responder set to 0.0.0.0? This would allow the Warehouse to keep a connection if their IP address was updated due to DHCP.

I know that the client to site VPNs can handle a remote gateway of 0.0.0.0, looking to set this up on a site to site.

Thank you,

Rod

1 Accepted Solution

Clive_A

3 weeks ago - last edited 2 weeks ago

Posts: 5226

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Re:Site to site VPN behind ISP modem-Solution

3 weeks ago - last edited 2 weeks ago

Hi @LERod

Thanks for posting in our business forum.

Not gonna be possible with the IPsec.

I used to have such a connection with the Wireguard after their initial connection was established. After that, the connection is continuous and you can remove the public IP from the other Endpoint of the peer who's gonna respond.

You might wanna try that but if the connection is blocked for a while, that could stop the connection. You are gonna re-do the steps to connect two peers with the Endpoints specified.

That's my experience which seems to fit what you asked.

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Site to site VPN behind ISP modem

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