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AMX NXA-ENET24 manual Switch supports both SSH Version 1.5

Models: NXA-ENET24

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User Authentication

Note that you need to install an SSH client on the management station to access the switch for management via the SSH protocol.

The switch supports both SSH Version 1.5 and 2.0.

Command Usage

The SSH server on this switch supports both password and public key authentication. If password authentication is specified by the SSH client, then the password can be authenticated either locally or via a RADIUS or TACACS+ remote authentication server, as specified on the Authentication Settings page (page 55).

If public key authentication is specified by the client, then you must configure authentication keys on both the client and the switch as described in the following section. Note that regardless of whether you use public key or password authentication, you still have to generate authentication keys on the switch (SSH Host Key Settings) and enable the SSH server (Authentication Settings).

To use the SSH server, complete these steps:

1.Generate a Host Key Pair – On the SSH Host Key Settings page, create a host public/private key pair.

2.Provide Host Public Key to Clients – Many SSH client programs automatically import the host public key during the initial connection setup with the switch. Otherwise, you need to manually create a known hosts file on the management station and place the host public key in it. An entry for a public key in the known hosts file would appear similar to the following example:

10.1.0.541024 35 15684995401867669259333946775054617325313674890836547254

15020245593199868544358361651999923329781766065830956 10825913212890233

76546801726272571413428762941301196195566782 59566410486957427888146206

519417467729848654686157177393901647793559423035774130980227370877945452408397

1752646358058176716709574804776117

3.Import Client’s Public Key to the Switch – Use the copy tftp public-keycommand (page 233) to copy a file containing the public key for all the SSH client’s granted management access to the switch. (Note that these clients must be configured locally on the switch via the User Accounts page as described on page 55.) The clients are subsequently authenticated using these keys. The current firmware only accepts public key files based on standard UNIX format as shown in the following example for an RSA Version 1 key:

1024 35 1341081685609893921040944920155425347631641921872958921143173880

055536161631051775940838686311092912322268285192543746031009371877211996963178

136627741416898513204911720483033925432410163799759237144901193800609025394840

848271781943722884025331159521348610229029789827213532671316294325328189150453

06393916643 steve@192.168.1.19

4.Set the Optional Parameters – On the SSH Settings page, configure the optional parameters, including the authentication timeout, the number of retries, and the server key size.

5.Enable SSH Service – On the SSH Settings page, enable the SSH server on the switch.

6.Challenge-Response Authentication – When an SSH client attempts to contact the switch, the SSH server uses the host key pair to negotiate a session key and encryption method. Only clients that have a private key corresponding to the public keys stored on the switch can access. The following exchanges take place during this process:

a. The client sends its public key to the switch.

b. The switch compares the client's public key to those stored in memory.

c. If a match is found, the switch uses the public key to encrypt a random sequence of bytes, and sends this string to the client.

d. The client uses its private key to decrypt the bytes, and sends the decrypted bytes back to the switch.

NXA-ENET24 - Software Management Guide

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AMX NXA-ENET24 manual Switch supports both SSH Version 1.5
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NXA-ENET24 specifications

The AMX NXA-ENET24 is a versatile and powerful networked control interface designed to meet the growing demands of modern AV systems. This network switch offers an exceptional combination of reliability, performance, and scalability, making it an ideal choice for professional environments such as conference rooms, educational facilities, and control rooms.

One of the key features of the NXA-ENET24 is its 24-port configuration, allowing for extensive connectivity options. Each port supports 10/100/1000 Mbps speeds, ensuring that high bandwidth applications are handled with ease. Additionally, the switch incorporates advanced auto-negotiation technology, which automatically configures the optimal speed and duplex mode for connected devices. This ensures seamless connectivity and minimizes the risk of network disruptions.

The NXA-ENET24 is designed with advanced management capabilities, including support for VLANs, which helps to segment network traffic for enhanced security and performance. Network administrators can easily create virtual local area networks to optimize traffic flow and reduce congestion. This feature is particularly beneficial in environments where multiple AV systems operate concurrently.

Another significant characteristic of the NXA-ENET24 is its support for Power over Ethernet, or PoE. This feature enables the switch to deliver electrical power alongside data through the network cables. As a result, devices such as IP cameras, VoIP phones, and wireless access points can be powered directly from the switch, simplifying deployment and reducing the need for additional power sources.

Monitoring and management of the switch are made easier through a user-friendly interface. The NXA-ENET24 supports SNMP for network management, allowing users to monitor performance metrics, configure settings, and receive alerts in case of issues. This level of oversight is crucial for maintaining the stability of AV systems in mission-critical applications.

Durability is another hallmark of the NXA-ENET24 design. The switch features a robust chassis that is engineered to withstand the rigors of professional use. With cooling mechanisms in place and a fanless design, the NXA-ENET24 operates quietly and efficiently, making it suitable for environments where noise is a concern.

In conclusion, the AMX NXA-ENET24 is a powerful, reliable, and feature-rich network switch that effectively supports modern AV applications. With its extensive connectivity options, advanced management capabilities, PoE support, and durable design, it is an excellent choice for integrators and organizations looking to optimize their network infrastructure.