Product Specifications

Product Restrictions

Product Restrictions

HP-UX IPSec product restrictions are described below:

•HP-UX IPSec systems cannot act as IP or IPSec gateways unless the local system is an HP-UX Mobile IPv6 Home Agent forwarding Mobile IPv6 packets to Mobile Node clients.

•You cannot use an end-to-end or transport transform in a host-to-host tunnel topology. The action for the host policy in a host-to-host topology must be PASS.

•HP-UX IPSec does not support security for multiple destination addresses (i.e. broadcast, subnet broadcast, multicast, and anycast addresses).

•You cannot selectively encrypt or authenticate services that use dynamic ports, such as NFS (Network File System) mountd, NFS lockd, and NIS (Network Information Service).

•HP-UX IPSec supports Perfect Forward Secrecy (PFS) for keys and identities (the IKE daemon can be configured to create a new ISAKMP/MM SA for each IPSec/QM negotiation). HP-UX IPSec does not support PFS for keys only (the IKE daemon would use the ISAKMP/MM SA for multiple IPSec/QM negotiations and perform a Diffie-Hellman key exchange for each IPSec/QM negotiation).

•If an HP-UX IPSec system crashes and the system had previously established ISAKMP SA(s) with peer IPSec system(s), the peer IPSec system(s) will not be able to use any existing ISAKMP and IPSec SAs to initiate communication with the rebooted IPSec system.

If the IPSec SA(s) are configured to be “Shared” (host-based), the peer system will not be able to initiate any communication with the rebooted system that would use the same IPSec SAs until the existing IPSec SAs expire.

If the IPSec SA(s) are configured to be “Exclusive” (session-based), then the peer system will be able to initiate IPSec encrypted or authenticated communication with the rebooted system only if the ISAKMP SA(s) are configured to use PFS (Perfect Forward Secrecy) until the ISAKMP SA expires.

ISAKMP Limitations

ISAKMP limitations and constraints are described below:

•For Main Mode (MM) and Quick Mode (QM) transaction exchanges, a single transaction request will timeout after 25 seconds (5 attempts at 5 second intervals) which in turn will timeout or terminate the transaction negotiation.

When timeouts occur, they usually occur during heavy network traffic congestion. It is the responsibility of the application to try to re-establish the connection after a connection establishment failure.

•The current product supports the PFS of both IPSec SA keys and the identity of the ISAKMP negotiating peers. The current product does not support the PFS for only the IPSec keys.

•For IPv6 systems, the only type of ISAKMP authentication supported is preshared keys.

Appendix A

281

Page 284 Page 286
Page 285
Image 285
HP UX IPSec Software manual Product Restrictions, Isakmp Limitations
Page 284 Page 286

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.
Top Page Image Contents