Cisco L-SL-A901-I ASR 901 IP Security Feature E-Delivery License

About This Product

Buy Cisco L-SL-A901-I | ASR 901 IPsec + NAT Security License (6CZ-FS Chassis) | E-Delivery

This license on sale are available exclusively Traditional License.

The L-SL-A901-I is the Cisco ASR 901 Secure Mobile Transport License for IPsec and NAT (NAPT) — the security feature license for the ASR 901 6CZ-FS chassis variant. This Cisco ASR 901 IPsec/NAT license enables IPsec VPN encryption and Network Address Translation on the A901-6CZ-FS-A and A901-6CZ-FS-D routers, providing secure mobile backhaul transport over untrusted networks. For mobile operators and service providers requiring encrypted backhaul with NAT gateway functionality, this license activates the security features that protect subscriber traffic in transit.

Also referenced as SL-A901-I or SL-A901-I=, this Cisco ASR 901 mobile security e-delivery license is a perpetual, feature-based license that is only valid on the A901-6CZ-FS-A and A901-6CZ-FS-D chassis — it is not supported on the standard A901-6CZ-FT or A901-6CZ-F models without the "S" (Security) designation. Note: Cisco IOS allows IPsec and NAT configuration on these chassis without a license (with a warning message), but for production deployments, a valid license ensures full support compliance and removes warning banners.

✅ Key Features

• • IPsec VPN encryption — enables secure mobile backhaul transport with IPsec tunnel encryption for subscriber traffic protection
• • NAT/NAPT — Network Address Port Translation for IPv4 address conservation and private-to-public IP mapping
• • FS chassis only — exclusively for A901-6CZ-FS-A and A901-6CZ-FS-D security-enhanced routers
• • Mobile backhaul security — designed for cell-site routers requiring encrypted transport across untrusted backhaul networks
• • Feature (not image) license — stacks on any image-level license (SL-A901-B or SL-A901-A)
• • E-Delivery — license file delivered by email; removes warning banners for production deployment compliance
• • Perpetual license — one-time purchase with no recurring subscription or annual renewal fee

Compatible Platform

The SL-A901-I IPsec+NAT license is exclusively compatible with the Cisco ASR 901 6CZ-FS chassis: A901-6CZ-FS-A and A901-6CZ-FS-D only. Not supported on standard A901-6CZ-FT or A901-6CZ-F models without the "S" security designation. Requires any image-level license (SL-A901-B or SL-A901-A). This is a feature license, not an image-level replacement.

Information Needed

To generate your license file, please send the output of show license udi from your Cisco ASR 901 6CZ-FS router to support@switchlicense.com, or leave a message online after placing your order. The license file is tied to your specific device UDI and cannot be transferred to another unit.

License Delivery

This Cisco software license is delivered electronically. Once your device UDI is confirmed, we will send you the .lic license file by email. No physical shipment is required — simply install the file on your ASR 901 6CZ-FS router to enable production-grade IPsec and NAT with full support compliance.

Warranty

We provide a 100% working warranty on all licenses. If the license file does not activate correctly on your device, we will resolve the issue at no additional cost. All payments are processed securely via PayPal for your peace of mind.