https://community.extremenetworks.com/t5/extremeswitching-vsp-fabric/fabricextend-through-third-party-ipsec-tunnel-anyone-tried/m-p/120852#M3133 <P>Hi all.</P><P>I'm curious to know if somebody already tried to do FabricExtend through third-party IPsec tunnels. I assume it should work, given some pre-requisites eventually to be guaranteed on both ends (L2 jumbo frames, accounting for encapsulation overheads for VXLAN, IPsec, Mac-In-Mac...)</P><P>F.</P> Thu, 27 Nov 2025 18:44:35 GMT Flavio 2025-11-27T18:44:35Z https://community.extremenetworks.com/t5/extremeswitching-vsp-fabric/fabricextend-through-third-party-ipsec-tunnel-anyone-tried/m-p/120852#M3133 <P>Hi all.</P><P>I'm curious to know if somebody already tried to do FabricExtend through third-party IPsec tunnels. I assume it should work, given some pre-requisites eventually to be guaranteed on both ends (L2 jumbo frames, accounting for encapsulation overheads for VXLAN, IPsec, Mac-In-Mac...)</P><P>F.</P> Thu, 27 Nov 2025 18:44:35 GMT https://community.extremenetworks.com/t5/extremeswitching-vsp-fabric/fabricextend-through-third-party-ipsec-tunnel-anyone-tried/m-p/120852#M3133 Flavio 2025-11-27T18:44:35Z https://community.extremenetworks.com/t5/extremeswitching-vsp-fabric/fabricextend-through-third-party-ipsec-tunnel-anyone-tried/m-p/120895#M3139 <P>Yes I have done this in the past. Utilizing Fortinet firewalls. Of course the proper way of doing it would be through Extreme's SD-WAN solution.&nbsp;</P><P>&nbsp;</P> Thu, 04 Dec 2025 14:17:12 GMT https://community.extremenetworks.com/t5/extremeswitching-vsp-fabric/fabricextend-through-third-party-ipsec-tunnel-anyone-tried/m-p/120895#M3139 flan 2025-12-04T14:17:12Z