When acting as a NETCONF-over-SSH server, the device supports only SSH2. When acting as an Stelnet, SFTP, or SCP server, the device supports both SSH2 and SSH1 in non-FIPS mode and only SSH2 in FIPS mode. When acting as an SSH client, the device supports only SSH2. When acting as an SSH client or server, the device supports the following SSH versions: For more information about NETCONF, see Network Management and Monitoring Configuration Guide. The device can act only as a NETCONF-over-SSH server. NETCONF over SSH-Based on SSH2, it enables users to securely log in to the device through SSH and perform NETCONF operations on the device through the NETCONF-over-SSH connections. The device can also act as an SCP client, enabling a user to log in from the device to a remote device for secure file transfer. The device can act as an SCP server, allowing a user to log in to the device for file upload and download. S ecure C opy-Based on SSH2, SCP offers a secure method to copy files. The device can also act as an SFTP client, enabling a user to log in from the device to a remote device for secure file transfer. TELNET traffic between a TELNET client and TELNET server is not encrypted, unless a third-party encryption tool or protocol is. TELNET was initially designed for the computer networks of 1960’s and 1970’s, when networks were considered safe. The device can act as an SFTP server, allowing a remote user to log in to the SFTP server for secure file management and transfer. The TELNET protocol was designed long back, even before the TCP/IP protocol suite. Secure File Transfer Protocol-Based on SSH2, SFTP uses SSH connections to provide secure file transfer. The device can act as an Stelnet server or an Stelnet client. Stelnet can protect devices against attacks, such as IP spoofing and plain text password interception. Through Stelnet, a user can securely log in to a remote server. Secure Telnet-Stelnet provides secure and reliable network terminal access services.

The device supports the following SSH applications:

Secure telnet server