troubleshooting Question

IPsec VPN - which encryption?

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Lenblock asked on
VPNInternet Protocol Security* Fortigate
5 Comments2 Solutions490 ViewsLast Modified:

We have a Fortigate in HQ connected to a bunch of branch offices with IPsec VPN in a hub & spoke configuration.
Speeds varies from 10mbps to 100 mbps pr. Branch office.
Currently phase2 is set up with: aes128 and SHA256.

Fortigate now supports AES GCM and can be used in phase2 for IPsec VPN tunnels.

There something new & fancy out there, but I have no idea if it's better.
Hope some of you in here can enlighten me :)

1. Does GCM provide better throughput and/or is less CPU intensive?
2. Does it provide better security?

Understand the principle of encryption but not the inner workings, please take that into consideration.

btanExec Consultant
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