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VincentG
New Contributor II

Fortigate 7.4.3 - Trafic over IPSEC

 

Good morning,

We randomly encounter IPSEC VPN traffic issues on Fortigate since update 7.4.2 -> 7.4.3. The tunnel does not fall functional, but no more network traffic for several minutes.

 

Are you experiencing similar issues?

3 REPLIES 3
AEK
SuperUser
SuperUser

Bonjour Vincent

Try open a ticket.

Meanwhile, can you check if you have any  unused ippool or VIP that are in the same range with the remote subnets (check on both firewalls).

AEK
AEK
mle2802
Staff
Staff

Hi @VincentG,
Is the tunnel up not passing traffic or it is down for both P1 and P2? Please refer to this article for more information https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-Troubleshooting-IPsec-Site-to-Site-T...

Regards,

VincentG
New Contributor II

Thanks for reply. The phase 2 is UP, there is normal trafic during many minutes, everythings seem good. But in some case like important SMB trafic, the trafic between the 2 networks shut down during some minutes (the phase 2 is again up and there is no ipsec renegociation). The only change was upgrade one of the fortigate 7.4.2 -> 7.4.3, the usage of networkstafic stay the same.

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