I want to downgrade my IDS system 4210, due to expirience performance issues after the latest upgrade to IPS-K9-sp-5.1-4 service pack. Can anyone inform me for the relevant downgrade path?
Urgent...Thanks in advance
Have you tried the 5.1(5) service pack? There were some engine fixes when analyzing web traffic on non-standard ports which dramatically increased performance. Also note that recent signature updates have retired lots of signatures to increase performance on the smallest sensors (like the 4210) so try that as well. If that doesn't work, I would open a TAC complaining of performance issues and/or flatten your sensor and recover with a 5.0 ISO.