Enabling SSHv1 Fallback

Chapter 3 Setting Up the Sensor

Changing Network Settings

Note The IPS supports managing both SSHv1 and SSHv2. The default is SSHv2, but you can configure the sensor to fallback to SSHv1 if the peer client/server does not support SSHv2

Use the sshv1-fallback {enabled disabled} command in the service host submode to enable the sensor to fall back to SSH protocol version 1. Fallback to SSHv1 is provided in case the peer client/server does not support SSHv2. SSHv2 is the default SSH version.

To enable or disable SSHv1 fallback, follow these steps:

Step 1 Log in to the sensor using an account with administrator privileges.

Step 2 Enter network settings mode.

sensor# configure terminal sensor(config)# service host sensor(config-hos)#network-settings

Step 3 Enable Telnet services.

sensor(config-hos-net)# sshv1-fallback enabled sensor(config-hos-net)#

Step 4 Verify that SSHv1 fallback is enabled.

sensor(config-hos-net)# show settings network-settings

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host-ip: 10.106.164.52/24,10.106.164.1 default: 192.168.1.2/24,192.168.1.1

host-name: p32-ips4240-52 default: sensor

telnet-option: enabled default: disabled

sshv1-fallback: enabled default: disabled

access-list (min: 0, max: 512, current: 1)

-----------------------------------------------

network-address: 0.0.0.0/0

-----------------------------------------------

ftp-timeout: 300 seconds <defaulted>

Step 5 Exit network settings mode.

sensor(config-hos-net)# exit

sensor(config-hos)# exit Apply Changes:?[yes]:

Step 6 Press Enter to apply the changes or enter no to discard them.

For More Information

For more information about configuring SSH, see Configuring SSH, page 3-45.

	Cisco Intrusion Prevention System Sensor CLI Configuration Guide for IPS 7.2

OL-29168-01		3-13
OL-29168-01		3-13

IPS4510K9 specifications

Cisco Systems has long been a leading player in network security, and its IPS (Intrusion Prevention System) series is a testament to its commitment to safeguarding digital environments. Among its notable offerings are the IPS4510K9 and IPS4520K9 models, both designed to provide advanced threat protection for mid-sized to large enterprise networks.

The Cisco IPS4510K9 and IPS4520K9 are distinguished by their cutting-edge features that help organizations defend against a myriad of cyber threats. These systems utilize a multi-layered approach to security, integrating intrusion prevention, advanced malware protection, and comprehensive visibility across the network.

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Furthermore, both models support a range of management options through the Cisco Security Manager, allowing for centralized administration, streamlined policy management, and enhanced monitoring capabilities. Automated updates ensure the systems remain current with the latest threat intelligence, vital for staying ahead of evolving cyber threats.

In summary, the Cisco Systems IPS4510K9 and IPS4520K9 represent powerful solutions for organizations seeking robust intrusion prevention capabilities. With their high performance, scalability, and advanced detection technologies, these systems are essential tools in the ever-changing landscape of cybersecurity, providing enterprises with the peace of mind needed to operate securely in today's digital world.

Cisco Systems IPS4510K9 manual Enabling SSHv1 Fallback, Verify that SSHv1 fallback is enabled

Models: IPS4510K9