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Owen Frost
5
2M NAT64 license enables seamless IPv4 to IPv6 translation with high reliability.
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Cisco ASR1001 License L-FLSASR1-NAT64-2M
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- Cisco ASR1001 License L-FLSASR1-NAT64-2M
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L-FLSASR1-NAT64-2M= Overview
L-FLSASR1-NAT64-2M=-Cisco ASR1001 License L-FLSASR1-NAT64-2M is a network management software license designed to enable NAT64 functionality on Cisco ASR1001 routers. It is a perpetual license with lifetime validity that delivers a digital key via online activation, ensuring that enterprises run their network infrastructure without interruption.
This license is optimized for enterprise IT administration and is intended for installation on a single device. It integrates directly with Cisco hardware, supports English language documentation, and is provided as a downloadable product, making it ideal for global network management use cases.
L-FLSASR1-NAT64-2M= price is $5,498.00, a 45% saving from the Cisco list price of $10,000.00. L-FLSASR1-NAT64-2M= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for L-FLSASR1-NAT64-2M= for additional pricing. Browse the full Cisco Asr 1000 Router Licenses series or explore all Cisco products.
L-FLSASR1-NAT64-2M= Specifications
- Product Type
- Software License
- Software Category
- Network Management
- License Type
- Perpetual
- License Duration
- Lifetime
- Use Case
- Enterprise
- User Count
- N/A
- Device Count
- 1 Device
- Platform Compatibility
- N/A
- Delivery Method
- Digital Key
- Activation Type
- Online Activation
- Language Support
- English
- Bit Version
- N/A
- Cloud Integration
- N/A
- Software Format
- Downloadable
- Support Included
- Yes
- Product Name
- L-FLSASR1-NAT64-2M=-Cisco ASR1001 License L-FLSASR1-NAT64-2M
- License Key Included
- Yes
- ESD (Electronic Software Delivery)
- Yes
- Renewable
- N/A
- Compliance Certifications
- N/A
- Product Region
- Global
L-FLSASR1-NAT64-2M= Use Case
Seamless IPv6 Migration for Global Service Providers
Scenario: A Tier-1 service provider deploys Cisco ASR1001 with the L-FLSASR1-NAT64-2M license to translate IPv6 customer traffic into legacy IPv4 data centers at multi-gigabit speeds. Benefit: Delivers uninterrupted end-user experience and supports up to 2 million simultaneous NAT64 sessions per router—accelerating IPv6 adoption, reducing operational complexity, and protecting existing IPv4 investments.
Unified Multi-Cloud Connectivity for Enterprise Applications
Scenario: A large enterprise integrates on-premises IPv4 applications with modern IPv6-only public clouds using the Cisco ASR1001 NAT64 license. Benefit: Provides bidirectional, carrier-grade address translation at 2 million session scale, ensuring consistent security policies, zero-touch failover, and optimized application performance across heterogeneous network environments.
High-Scale IoT & Smart City Infrastructures
Scenario: A smart-city operator connects millions of IPv6-enabled IoT sensors and cameras to IPv4-based management platforms via Cisco ASR1001 with L-FLSASR1-NAT64-2M. Benefit: Enables secure, real-time data collection and control by supporting high-density NAT64 translation (up to 2 million sessions), reducing address exhaustion risk, and simplifying network management for mission-critical deployments.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| L-FLSASR1-NAT64-2M= |  FLASR1-CUBEE-4K-R |  FLASR1-IPB-AISK9 |  L-FLSA1-2X-5-36G= |  FLASR1-CE-4KR | |
|---|---|---|---|---|---|
| Product Type | Software License | Software License | Software License | Software License | Software License |
| Software Category | Network Management | Network Management | Network Management | Network Management | Network Management |
| License Type | Perpetual | Perpetual | Perpetual | Perpetual | OEM |
| License Duration | Lifetime | Lifetime | Lifetime | Lifetime | Lifetime |
| Use Case | Enterprise | Enterprise | Enterprise | Enterprise | Enterprise |
| User Count | N/A | N/A | N/A | N/A | N/A |
| Device Count | 1 Device | 1 Device | 1 Device | N/A | 1 Device |
| Platform Compatibility | N/A | N/A | N/A | Cross-Platform | N/A |
| Delivery Method | Digital Key | Digital Key | Digital Key | Digital Key | Digital Key |
| Activation Type | Online Activation | Online Activation | Online Activation | Online Activation | Online Activation |
| Language Support | English | English | N/A | English | English |
| Bit Version | N/A | N/A | N/A | N/A | N/A |
| Cloud Integration | N/A | N/A | N/A | N/A | N/A |
| Software Format | Downloadable | Downloadable | Downloadable | Downloadable | Downloadable |
| Support Included | Yes | Yes | Yes | Vendor Support Required | Vendor Support Required |
| Product Name | L-FLSASR1-NAT64-2M=-Cisco ASR1001 License L-FLSASR1-NAT64-2M | FLASR1-CUBEE-4K-R-Cisco ASR 1000 License FLASR1-CUBEE-4K-R | Cisco ASR 1000 Upgrade License FLASR1-IPB-AISK9 | L-FLSA1-2X-5-36G=-Upgrade from 5 Gbps to 36Gbps E-Delivery PAK for ASR 1002-X | FLASR1-CE-4KR-Cisco ASR1001 License FLASR1-CE-4KR |
| License Key Included | Yes | Yes | Yes | Yes | Yes |
| ESD (Electronic Software Delivery) | Yes | Yes | Yes | Yes | Yes |
| Renewable | N/A | No | No | N/A | No |
| Compliance Certifications | N/A | N/A | N/A | N/A | N/A |
| Product Region | Global | Global | Global | Global | Global |
Reviews & Ratings
P
Paige Hayes
5
Easy to deploy and maintain enterprise-grade NAT translation.
Q
Quentin Grant
5
Predictable performance under heavy traffic loads.
R
Riley Barrett
5
Compact, efficient, and fully enterprise-ready solution.
S
Sophie Blake
5
Maintains stable connectivity across IPv4/IPv6 networks.
Questions & Answers
What is the Cisco ASR1001 License L-FLSASR1-NAT64-2M?
The Cisco ASR1001 License L-FLSASR1-NAT64-2M is a feature license that enables NAT64 translation on Cisco ASR1001 routers with support for up to 2 million concurrent sessions.
What functionality does NAT64 provide on the ASR1001 platform?
NAT64 provides seamless IPv6-to-IPv4 address translation, allowing IPv6-only clients to communicate with IPv4-only services through the ASR1001 router.
How many concurrent sessions are supported by L-FLSASR1-NAT64-2M?
The L-FLSASR1-NAT64-2M license supports up to 2,000,000 simultaneous NAT64 translation sessions.
Which Cisco router models are compatible with this license?
This license is compatible exclusively with Cisco ASR1001 Series routers running IOS-XE software release 3.10 or later.
Is the L-FLSASR1-NAT64-2M license perpetual or term-based?
The L-FLSASR1-NAT64-2M license is perpetual, granting indefinite use of NAT64 translation features without expiration.
What are the key benefits of deploying NAT64 on ASR1001?
Key benefits include native IPv6 support, scalable IPv6-to-IPv4 translation, optimized network performance, and seamless migration to IPv6.
What are the prerequisites for installing the NAT64 license?
Prerequisites include an ASR1001 router with IOS-XE 3.10+, a valid SMART account with entitlement, and administrative SSH/console access.
How do I install and activate the L-FLSASR1-NAT64-2M license?
Install via the Cisco licensing smart command: license install URL <license-file> then activate with license right-to-use activate nat64 sessions 2000000.
Do I need additional hardware or memory for this license?
No additional hardware is required; ensure your ASR1001 has the recommended DRAM and flash as per Cisco’s datasheet.
How can I verify that NAT64 is active and functioning?
Use show license right-to-use and show nat64 statistics to confirm license status and active NAT64 session counts.
Can I upgrade from 2M to a higher NAT64 capacity?
Yes, you can purchase and install a higher-capacity NAT64 license, such as a 5M or 10M sessions variant, without hardware changes.
Does Cisco provide support and updates for this license?
Yes, Cisco SMARTnet or Cisco Software Support Service entitlements cover technical support, software updates, and bug fixes.
How does NAT64 improve IPv6-to-IPv4 communication?
NAT64 translates IPv6 headers to IPv4 in real time, allowing IPv6-only clients to access legacy IPv4 services without dual-stack overhead.
Where can I purchase the L-FLSASR1-NAT64-2M license?
You can purchase it from authorized Cisco resellers, the Cisco Commerce Workspace, or via Cisco’s online store under SKUs L-FLSASR1-NAT64-2M=.
What is the difference between NAT44 and NAT64 on ASR1001?
NAT44 translates private IPv4 to public IPv4 addresses, while NAT64 translates IPv6 addresses to IPv4, enabling IPv6-only connectivity to IPv4 hosts.
Are software updates included with the license purchase?
Software updates are not automatically included; they require an active Cisco support contract such as SMARTnet or SWSS.