I noticed it in my own network, and have confirmed in the forums that IPS causes some major performance loss. Curious - is it the overall feature being turned on, or particular pieces? Anyone done some testing with this? Example - Can leave anti-portscan and DoS protection on, but turn off all attack patterns?
It just bugs the hell out of me knowing the units I just purchased kill my bandwidth using one of the primary features drawing me to Sophos UTMs.
A number of my sites still run on 1-2 T1s and can't afford to take any hits to their bandwidth.
Thanks!
-Jim
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