As we mentioned in previous posts, the Cisco ASA 5500 appliance supports an Intrusion Detection/Intrusion Prevention plug-in module (AIP-SSM). However not all models support this. Specifically only the middle-range models support it. The lowest-end model (5505) and the highest-end models (5550, 5580) does not support the AIP-SSM IPS module.

ASA Models that support IPS Module:

  • Cisco ASA 5510
  • Cisco ASA 5520
  • Cisco ASA 5540

Basically the ASA 5505 can not support the AIP-SSM because of its small size. Also, the 5550 can not support the module because its hardware is occupied with much more integrated network ports compared with other models (it has 8-10/100/1000 and 4 gigabit SFP ports). The highest-end 5580 does not support the module because an IPS inline module in the 5580 would decrease its packet forwarding performance (remember that the 5580 is usually used in high traffic environments).

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Filed under: Cisco ASA Hardware

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