06-18-2010 03:16 AM - edited 02-21-2020 04:42 PM
Hello,
Does anybody know if it is possible to configure GRE IPSec tunnel between Cisco 2811 router and FortiGate 110C firewall? I know that FortiGate supports IPSec and GRE tunnels, but maybe somebody succeeded in establishing an IPSec GRE between those routers? Could you also give a link to the appropriate documentation if it is possible?
06-18-2010 07:15 AM
Hi
Is there any specific reason for planning to have GRE over there ? I would suggest checking the below links and the links embedded inside the link.
https://learningnetwork.cisco.com/thread/5400
regds
06-18-2010 07:44 AM
Hello,
the reason why I need GRE over IPSec is to pass RIP routing updates via VPN tunnel. I don't know if it is possible in Cisco IOS to configure IPSec VPN using crypto maps and pass routing updates via that tunnel.
06-18-2010 08:31 AM
Hi,
You can configure the GRE tunnel on the 2811.
I'm aware that you can configure sort of a GRE tunnel on the Fortinet as well, but I have not seen a GRE tunnel between a Cisco and other vendor.
I've only seen GRE tunnels between Cisco devices (however I have not tried it to assure you that it will not work :-()
Federico.
09-30-2013 04:11 PM
Fortigate support Tunnel GRE!!,
09-30-2013 04:19 PM
Refer to this configuration guide.
http://docs.fortinet.com/fgt/handbook/fortigate-ipsec-40-mr1.pdf
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