Cisco ISR 4000 Licenits SL-44-SEC-K9

The SL-44-SEC-K9 activates the security bundle on Cisco ISR 4400 routers in the ISR 4000 series. It unlocks advanced IOS XE security features: integrated firewall, IPsec/SSL VPN, zone-based inspection, and intrusion prevention — all without additional hardware.

This software key is intended for CISOs and security managers looking to strengthen the defensive posture of their WAN infrastructure on ISR 4400 routers without additional hardware investment. Compatible with Cisco Smart Licensing for centralized deployment. Genuine Cisco license, manufacturer warranty.