Dear
Currently my firewall has a attack DoS.
How to stop this attack and eliminate the source IP address of this attack.
I have an XG230 in version 19 (and I can also come back in 18.5.3)


Thanks a lot
This thread was automatically locked due to age.
Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.
Dear
Currently my firewall has a attack DoS.
How to stop this attack and eliminate the source IP address of this attack.
I have an XG230 in version 19 (and I can also come back in 18.5.3)


Thanks a lot
Do a blackhole NAT: https://support.sophos.com/support/s/article/KB-000038943?language=en_US
It should redirect this client to nowhere.
__________________________________________________________________________________________________________________