Cisco AnyConnect Secure Mobility Client v4.x is a modular security endpoint software that provides remote users with secure VPN access and various protection services. It was officially rebranded to Cisco Secure Client starting with version 5.0. Status and Lifecycle
End-of-Life: Cisco AnyConnect 4.x is currently considered End-of-Life.
Maintenance End Date: Software maintenance support for version 4.x ended on March 31, 2024. No further patches or security updates are provided for this version.
Migration: Customers are encouraged to migrate to Cisco Secure Client 5.x. Most existing licenses for AnyConnect allow for a free upgrade to the new client. Core Capabilities
The v4.x client is built on a modular architecture, allowing IT administrators to deploy only the necessary security features.
What is Cisco AnyConnect Secure Mobility Client? - Study CCNP
Cisco AnyConnect Secure Mobility Client v4.x provides a modular security framework for remote access and endpoint protection.
One of its key features is Always-On VPN, which ensures that endpoint devices stay protected by automatically establishing a VPN tunnel whenever the user is outside the trusted network. Key Feature Modules in v4.x cisco anyconnect secure mobility client v4x
Network Access Manager (NAM): Manages wired and wireless connections, providing a single authentication framework for user and device identity.
ISE Posture: Validates endpoint security compliance (e.g., antivirus status, firewall) before allowing network access.
Network Visibility Module (NVM): Monitors endpoint application usage to help administrators analyze network traffic patterns.
Umbrella Roaming Security: Provides DNS-layer security to protect devices even when the VPN is not active.
Web Security: Integrates with Cisco Web Security Appliance or Cloud Web Security to enforce acceptable use policies. Important Lifecycle Information
End-of-Life: Maintenance for AnyConnect 4.x ended on March 31, 2024. New features and bug fixes are now part of Cisco Secure Client 5.x.
Obsolete Date: All support services for v4.x will conclude by March 31, 2027. Cisco AnyConnect Secure Mobility Client v4
Cisco AnyConnect Secure Mobility Client v4.x was the industry-standard software for providing secure, remote access to corporate networks. However, as of March 31, 2024, it has officially reached its End-of-Life (EoL) for software maintenance.
Below is a detailed guide on what this version offered and the critical next steps for current users. What was Cisco AnyConnect v4.x?
AnyConnect v4.x was a modular, lightweight security client that went beyond simple VPN connectivity. It allowed businesses to pick and choose specific security services to deploy to their endpoints.
Core VPN Services: Provided encrypted connections using TLS/SSL and IPsec IKEv2 protocols.
Modular Architecture: Administrators could enable specific modules like Network Access Manager (802.1X management), ISE Posture (compliance checks), and Cisco Umbrella Roaming (DNS-layer security).
Enterprise Features: Supported Multi-Factor Authentication (MFA) via SAML 2.0, RADIUS, or certificates, and offered split-tunneling to optimize network traffic. The Critical Deadline: End of Support
Cisco has transitioned AnyConnect v4.x to a legacy status to focus on the newer Cisco Secure Client platform. End of Maintenance March 31, 2024 No more patches or bug fixes. End of App Support March 31, 2027 Product becomes completely obsolete. Cisco Secure Client Data Sheet Part 7: Migration Strategy – Moving from v4
If you are reading this and planning a migration, here is the reality.
The client uses a modular architecture installed via a base package plus optional modules:
| Module | Function | |--------|----------| | Core VPN | Base SSL/IPsec VPN functionality | | DART | Diagnostic and reporting tool | | Posture (HostScan) | Endpoint compliance checks | | Network Access Manager | 802.1X wired/wireless supplicant | | ISE Posture | Integration with Cisco ISE for NAC | | Umbrella | DNS security and roaming protection | | SBL (Start Before Logon) | VPN login before Windows logon |
Deployment methods:
For organizations moving to a zero-trust perimeter, v4.x offers "Always-On" with a captive portal fallback. If the device loses internet or the VPN gateway, the client blocks all non-VPN traffic until reconnection. Caveat: Requires careful design with a "Local LAN Access" exception list to avoid locking out local printers.
The Diagnostic and Reporting Tool (DART) saw a massive overhaul in v4.x. Previously, logs were scattered. v4.x introduced a unified logging database and a single-click bundle generator, reducing TAC case resolution times by an average of 40%.