Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

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Configuring IP Spoof and DoS Protection without Blocking Outbound Internet Traffic

Hello Team,


I hope this message finds you well. I am writing to seek your assistance regarding a configuration issue I am facing with our sophos xgs firewall setup.

We have recently configured traffic flow and firewall rules for inbound and outbound traffic across multiple VPCs. As part of our ongoing security enhancements, we aimed to enable IP spoofing and Denial-of-Service (DoS) protection features on the firewall. However, upon enabling these settings, we encountered an issue where outbound traffic to the internet was unexpectedly blocked.

Attaching the configuration SS for your reference.
Thank you in advance.



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