How to configure ipsec vpn

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How to configure ipsec vpn

L0 Member

How to configure ipsec vpn between palo atto and fortigate firewall .

VPN flow is following

Remote Lan ( >>>>  Fortigate ( private ip)>>>>>Cisco router(>>>>>PaloAlto( ip)----Local lan

fortigate firewall is the behind the NATed device that is cisco router and Cisco Router have public ip ( but Fortigate do not have public ip address and they have private ip( device is in front of fortigate.

 How can we configure for that?


Cyber Elite
Cyber Elite

Palo side



If Cisco router don't have DNAT rule to forward packets arriving to further towards then it makes sense to make Palo to be passive.


"Enable NAT Traversal" will encapsulate IPSec packets into UDP packet. This is needed if NAT is involved.



Enterprise Architect, Security @ Cloud Carib Ltd
Palo Alto Networks certified from 2011

Cyber Elite
Cyber Elite


check out @Raido_Rattameister reply. The natted firewall/vpn endpoint needs to have the IP listed as the "Peer Identification" IP address. So point your tunnel at the public IP and the Peer Identification as the VPN endpoint device.



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