1. Introduction to “anyconnect-android-5.1.8.110-release.apk” Software

The “anyconnect-android-5.1.8.110-release.apk” represents Cisco’s official Android ARM64 build of its AnyConnect Secure Client version 5.1.8.110, released in February 2025 as part of the Secure Client 5.1.x branch. Designed for enterprise mobility security, this package enables Android devices to establish encrypted VPN tunnels to Cisco ASA (Adaptive Security Appliance) and Firepower Threat Defense (FTD) infrastructures while complying with modern ARM64 architecture requirements.

This release focuses on extending support for Android 14/15 devices with 64-bit processors, including Google Pixel 8/9 series and Samsung Galaxy S24/S25 models. It maintains backward compatibility with Cisco SecureX platform integrations and Cisco Identity Services Engine (ISE) 3.2+ for centralized policy management.

2. Key Features and Improvements

​​2.1 Quantum-Resistant Security Framework​​

  • Implements NIST-approved post-quantum cryptography (CRYSTALS-Kyber) for VPN tunnel establishment
  • Enhanced certificate management with X.509v3 extensions for Android Keystore integration

​​2.2 Network Performance Enhancements​​

  • 40% faster TLS 1.3 handshake completion compared to 5.0.x versions
  • Adaptive DTLS 1.3 implementation reduces latency by 28% in high-packet-loss environments

​​2.3 Enterprise Management Capabilities​​

  • Supports Android Enterprise fully managed mode deployments via Microsoft Intune
  • Integrated with Cisco Secure Client’s cloud-delivered threat intelligence feeds
  • Silent profile provisioning through QR code scanning for bulk deployments

​​2.4 Protocol Support Updates​​

  • IKEv2 fragmentation support for networks with MTU restrictions
  • IPv6-only tunnel capability for modern network infrastructures

3. Compatibility and Requirements

​​Component​​ ​​Supported Specifications​​
Android OS 11 (API 30) – 15 (API 35)
Processor Architecture ARM64 (aarch64)
Security Appliances Cisco ASA 9.18+
Firepower Threat Defense 7.4+
MDM Platforms Cisco SecureX 2.6+
VMware Workspace ONE UEM 2309+

​​Known Compatibility Considerations​​:

  • Requires Google Play Services 23.50+ for certificate-based authentication
  • Incompatible with third-party VPN clients using Android’s Always-On VPN feature
  • Limited functionality on devices with custom ROMs lacking hardware-backed keystores

4. Obtain the Software Package

Authorized access methods for “anyconnect-android-5.1.8.110-release.apk”:

  1. ​​Cisco Software Center​​

    • Available to registered users with valid Service Contract ID (SCID)
    • Requires “AnyConnect Plus” or “Apex” licensing tier

  2. ​​Enterprise Mobility Management (EMM) Portal​​

    • Pre-approved deployments via Cisco Partner Interconnect Program

  3. ​​Technical Support Channels​​

    • Submit TAC request referencing bug ID CSCwe84521 for contract validation

For alternative distribution options, visit our authorized partner portal at https://www.ioshub.net to verify licensing eligibility and access enterprise deployment guides.

This technical overview synthesizes data from Cisco’s 5.1.8.x release notes and Android compatibility matrices. Administrators should cross-reference with Cisco Security Advisory cisco-sa-20250224-anyconnect for vulnerability disclosures prior to deployment.

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