09-27-2023 09:43 PM
How to configure ipsec vpn between palo atto and fortigate firewall .
VPN flow is following
Remote Lan (191.168.1.0/24) >>>> Fortigate (192.168.10.2 private ip)>>>>>Cisco router(203.1.1.2/29)>>>>>PaloAlto(202.1.1.10/30-public ip)----Local lan
fortigate firewall is the behind the NATed device that is cisco router and Cisco Router have public ip (203.1.1.2/29) but Fortigate do not have public ip address and they have private ip(191.168.10.2).NATed device is in front of fortigate.
How can we configure for that?
09-28-2023 06:24 AM
Palo side
If Cisco router don't have DNAT rule to forward packets arriving to 203.1.1.2 further towards 192.168.10.2 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.
09-28-2023 09:09 AM
Hello,
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.
Regards,
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