Configuring HP-UX IPSec

Step 6: Configuring the Bypass List (Local IPv4 Addresses)

application (16.1.1.1 and 16.2.2.2), and configure the critical application to use only the specific logical interfaces. You can then configure the remaining logical interfaces in the bypass list (15.1.1.1 and 15.2.2.2).

Figure 3-1

Bypass List Example

Node1

Node2

bypass

15.1.1.1 (lan0:0)

16.1.1.1 (lan0:1)

secure

15.2.2.2 (lan0:0)

16.2.2.2 (lan0:1)

Maximizing Security

An IPv4 address in the bypass list has the same effect as an open IPSec policy, with the bypass interface address as the local address, a wildcard

(*) remote address, wildcard protocol and ports, and a Pass transform.

If you configure entries in the bypass list, intruders may be able to access services or ports bound to addresses in the bypass list from other interfaces on the system, even if the other interface IP addresses are secured by IPSec policies. Intruders may access services or ports bound to addresses in the bypass list even if the intruders are not directly connected to interfaces in the bypass list.

HP recommends that you do not use the bypass list on systems where you are using HP-UX IPSec as a filter or firewall to protect your network.

See “Maximizing Security” on page 59 for more information.

ipsec_config add bypass Syntax

You can use the following ipsec_config add bypass syntax to configure preshared keys in most installations:

ipsec_config add bypass ip_address

HP recommends that you use an ipsec_config batch file to configure HP-UX IPSec.To specify an add bypass operation for an ipsec_config batch file, use the above syntax without the ipsec_config command name:

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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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