HP UX IPSec Software manual Protocol Implementation Differences

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The above problem typically occurs with ESP-encrypted UDP or ICMP packets that are fragmented by IP. HP-UX 11i systems minimize IP fragmentation of ESP-encrypted TCP packets. You may still experience problems with ESP-encrypted TCP packets sent from an HP-UX system to a Windows 2000 system if an intermediate IP gateway fragments the ESP packet.

Protocol Implementation Differences

HP-UX and Microsoft Windows both implement the IP Security protocol suite. However, there are features in the protocol suite that HP-UX implemented which Microsoft did not implement, and vice-versa.

The following features are implemented by HP-UX IPSec version A.02.01 but not by Microsoft Windows XP:

•Advanced Encryption Standard (AES): HP-UX IPSec supports ESP encryption using the

following protocols: AES, Triple Data Encryption Standard (3DES), and Data Encryption Standard (DES). Windows XP and Windows 2000 support 3DES and DES, but do not support AES.

•Aggressive Mode (AM): HP-UX supports AM exchanges to establish IKE Security Associations (SAs). AM is an optional feature and is not supported on Windows.

The following features are implemented by Microsoft Windows XP, but not by HP-UX IPSec version A.02.01:

•Kerberos: Windows supports Internet Key Exchange (IKE) authentication using Kerberos. RFC 2408 defines an optional Kerberos Token payload, but does not describe how to implement it. This feature is not supported on HP-UX.

•Perfect Forward Secrecy (PFS) for keys only: HP-UX IPSec supports PFS for keys in conjunction with PFS for all identities, but does not support PFS for keys only. Windows supports PFS for keys only (“session key PFS”) and PFS for keys in conjuctions with PFS for all identities (“master key PFS”). See “Perfect Forward Secrecy (PFS)” (page 43) for more information.

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Contents HP Part Number J4256-90025 Published June Edition Page Table of Contents Glossary List of Figures Page List of Tables Page About This Document Typographic ConventionsPage Testing Environment Known Problem with Windows 2000 SP1 and SP2Introduction Protocol Implementation Differences Windows IP Security Configuration Overview RulesConfiguring a Windows Host-to-Host Policy Tunnel SettingsCreating a Policy Adding a Rule IP Security Policy WizardRules Tab Creating the IP Filter List and Filters for the Rule Creating an IP Filter ListClick OK to return to the Filter Properties dialog box Protocol Tab for Filter Properties Configuring Filter Actions for the Rule Selecting the Filter List for a RuleSecurity Methods for Filter Action Encryption and Integrity Click Apply Selecting the Filter Action Configuring the Connection Type for the Rule Modifying IKE Parameters for the PolicyGeneral Policy Properties Dialog Box Master key perfect forward secrecy PFS Starting the IP Security Service IKE Security Algorithms Dialog BoxIpsec Services Properties Dialog Box Assigning the IP Security PolicyVerifying the Configuration Windows ConfigurationExample HP-UX Configuration Configuring a Windows End-to-End Tunnel Policy Configuring a Tunnel RuleOutbound Tunnel Rule Requirements Inbound Tunnel Rule RequirementsOutbound Rule Outbound Rule Filter Inbound Rule Filter HP-UX Configuration Troubleshooting Tips Using IKE Logging on HP-UX SystemsUsing IKE Logging on Windows Systems Additional Windows Troubleshooting Tools Disable IKE logging. On Windows XP systems, setComparing HP-UX and Windows IPsec Configuration Parameters IPsec Parameters on Windows and HP-UXMirrored Filters Values page 42 forFilter Selection IKE Parameter SelectionIKE SA Key Master Key Lifetime Values HP-UX IKE SA Lifetime ValuesMaximum Quick Modes Perfect Forward Secrecy PFSIPsec SA Key Session Key Lifetime Values Windows IKE SA Lifetime ValuesWindows IPsec SA Lifetime Values Related Publications Page Glossary Transform
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UX IPSec Software specifications

HP-UX IPSec Software is an integral component of the HP-UX operating system, providing robust and secure communication capabilities for enterprise environments. As organizations increasingly rely on secure networking solutions, HP-UX IPSec stands out with its comprehensive set of features and technologies designed to safeguard sensitive data.

One of the core characteristics of HP-UX IPSec Software is its implementation of the Internet Protocol Security (IPSec) framework. This technology secures Internet Protocol (IP) communications through authentication and encryption, ensuring the integrity and confidentiality of data transmissions. By leveraging IPSec, HP-UX provides a secure method for connecting remote users and secure sites over untrusted networks, such as the internet.

A notable feature of the HP-UX IPSec Software is its support for both transport and tunnel modes. The transport mode encrypts only the payload of the IP packet, whereas the tunnel mode encapsulates the entire IP packet within a new packet, allowing for secure communications between entire networks. This flexibility enables organizations to tailor their security strategies based on specific use cases and requirements.

HP-UX IPSec also emphasizes interoperability and compliance with industry standards. The software supports various encryption algorithms and authentication methods, including those defined by the Internet Engineering Task Force (IETF). This commitment to open standards ensures that HP-UX can seamlessly integrate with a diverse range of networking infrastructures and security solutions.

In addition to its security features, HP-UX IPSec Software offers administration tools that simplify the configuration and management of IPSec policies. The software includes a user-friendly command-line interface, allowing system administrators to specify security associations and policies efficiently. Moreover, comprehensive logging and monitoring capabilities help organizations keep track of their security posture and detect potential vulnerabilities.

Another essential characteristic of HP-UX IPSec Software is its scalability. Designed to accommodate the needs of both small and large enterprises, it can handle increased loads and adapt to changing security demands without compromising performance.

In conclusion, HP-UX IPSec Software stands as a vital solution for organizations seeking to protect their data transmissions over IP networks. With its core technologies, such as transport and tunnel modes, adherence to industry standards, user-friendly administration tools, and scalability, it provides a formidable layer of security in an increasingly interconnected world. This makes it a preferred choice for enterprises aiming to enhance their network security frameworks.
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