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Doubts about using GRE tunnel in sophos

Hello community.

I have some doubts that I didn't find in the documentation or in the forum. My doubt is about the GRE.

1 - Support multiple internet links, how to define primary and backup routing?
2 - In the console what is this dyndns option? is in System gre tunnel set dyndns.
3 - Is it possible to configure the MTU of the GRE interface?
4 - Is it possible to define distance in the routing?

I anticipate some questions that may come. like:
Why not use VTI? Unfortunately I need to close a tunnel with the provider that does not support VTI, only GRE\IPsec.

Thanks for any help, any answers will give me good direction.

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0 Bharat J over 2 years ago

Hi Gib GoDesk

Both HeadOffice and Branch office need to install Sophos XG firewall to configure GRE Tunnel.

Try to connect your HeadOffice and Branch office with Route base to meet your requirement :

https://docs.sophos.com/nsg/sophos-firewall/18.5/Help/en-us/webhelp/onlinehelp/AdministratorHelp/VPN/SiteToSiteVPN/VPNCreateRouteBasedVPN/index.html#edit-the-xfrm-interface-ho

Thanks and Regards

"Sophos Partner: Infrassist Technologies Pvt Ltd".

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0 Gib GoDesk over 2 years ago in reply to Bharat J

Hello, Bharat J.

Thank's for your time. Unfortunately it is not my case. The other side is not Sophos and only supports GRE.

This communication is already active and up. Working with an internet link. I'm wanting to improve this communication by adding a second link.

That's why I asked the questions. If you know anything, I'll be grateful.
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0 Gib GoDesk over 2 years ago in reply to Bharat J

Hello, Bharat J.

Thank's for your time. Unfortunately it is not my case. The other side is not Sophos and only supports GRE.

This communication is already active and up. Working with an internet link. I'm wanting to improve this communication by adding a second link.

That's why I asked the questions. If you know anything, I'll be grateful.
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0 Bharat J over 2 years ago in reply to Gib GoDesk

Hi Git Godesk

please share the screenshot for the GRE configuration already working

Also share any error or error messages while configuring GRE tunnel with secondary link

Thanks and Regards

"Sophos Partner: Infrassist Technologies Pvt Ltd".

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Doubts about using GRE tunnel in sophos

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