02-29-2012 07:35 AM
Can Juniper Firewall support IPSec over GRE?
Are there kb links on this?
Couldn't find much information here...
03-01-2012 01:26 AM
KB3256 How to configure a GRE tunnel over IPSEC between Juniper Firewall devices
KB6126 Can a GRE tunnel be established between a Juniper Firewall and a Cisco Router?
03-04-2012 07:48 PM
03-05-2012 12:32 AM
I have never tried this but it should be possible. You can configure a GRE tunnel as described in the KB but without IPSec. As there are no VPN SAs the tunnel interface will not come up. But routing through the tunnel interface may be forced if the routes are configured as permanent. The IPs of the VPN endpoints should be routed across the GRE tunnel.
As I suppose you want to terminate the VPN IPSec on a third party device(s). If both devices are SSGs this does not make sense to use IPSec over GRE.
03-06-2012 02:47 AM