Cisco Firewall/NAT Stateful Inter-Chassis Redundancy License | Spare — L-FLASR1FWNAT-RED=

Protect session continuity when failover matters most with Cisco Firewall/NAT Stateful Inter-Chassis Redundancy License, Spare. This license supports stateful inter-chassis redundancy for firewall and NAT services, helping paired systems retain connection state during a switchover instead of forcing users and applications to reconnect. That matters in environments where even brief interruption can affect remote access, transactional traffic, or operational visibility. By keeping state information aligned across chassis, the license helps security teams design high-availability architectures that preserve service behavior under fault conditions. For infrastructure teams, the value is operational discipline. It supports a redundancy model that is easier to defend in procurement than ad hoc failover designs, because the licensing is tied directly to the capability that protects sessions and reduces recovery time. It is a practical fit for organizations that need continuity, not just backup hardware. Ideal For Maintain session continuity in a dual-chassis firewall high-availability design Reduce interruption for VPN, remote access, and transactional traffic during failover Support stateful NAT behavior across redundant security appliances Provision a spare redundancy license for disaster recovery or expansion planning Why This Product 1 Preserves session state during failover 2 Supports both firewall and NAT services 3 Spare license for redundancy planning 4 Built for paired chassis high-availability designs