Admin Guide
Table Of Contents
- Contents
- Chapter 1: Introduction
- Chapter 2: New in this document
- Chapter 3: Basic administration
- Chapter 4: System startup fundamentals
- Chapter 5: Boot parameter configuration using ACLI
- Chapter 6: Run-time process management using ACLI
- Chapter 7: Chassis operations
- Chassis operations fundamentals
- Chassis operations configuration using ACLI
- Enabling jumbo frames
- Configuring port lock
- Configuring SONMP
- Viewing the topology message status
- Associating a port to a VRF instance
- Configuring an IP address for the management port
- Configuring Ethernet ports with Autonegotiation
- Enabling channelization
- Configuring serial management port dropping
- Controlling slot power
- Enabling or disabling the USB port
- Chassis operations configuration using EDM
- Editing system information
- Editing chassis information
- Configuring system flags
- Configuring channelization
- Configuring basic port parameters
- Viewing the boot configuration
- Configuring boot flags
- Enabling Jumbo frames
- Configuring the date and time
- Associating a port to a VRF instance
- Configuring CP Limit
- Configuring an IP address for the management port
- Editing the management port parameters
- Configuring the management port IPv6 interface parameters
- Configuring management port IPv6 addresses
- Auto reactivating the port of the SLPP shutdown
- Editing serial port parameters
- Enabling port lock
- Locking a port
- Viewing power information
- Viewing power status on VSP 8400
- Viewing fan information
- Viewing topology status information
- Viewing the topology message status
- Configuring a forced message control pattern
- Chapter 8: Hardware status using EDM
- Chapter 9: Domain Name Service
- Chapter 10: Licensing
- Chapter 11: Network Time Protocol
- Chapter 12: Secure Shell
- Secure Shell fundamentals
- Secure Shell configuration using ACLI
- Downloading the software
- Enabling the SSHv2 server
- Changing the SSH server authentication mode
- Setting SSH configuration parameters
- Verifying and displaying SSH configuration information
- Connecting to a remote host using the SSH client
- Generating user key files
- Managing an SSL certificate
- Disabling SFTP without disabling SSH
- Enabling SSH rekey
- Configuring SSH rekey data-limit
- Configuring SSH rekey time-interval
- Displaying SSH rekey information
- Downgrading or upgrading from releases that support different key sizes
- Secure Shell configuration using Enterprise Device Manager
- Chapter 13: System access
- System access fundamentals
- System access configuration using ACLI
- Enabling ACLI access levels
- Changing passwords
- Configuring an access policy
- Specifying a name for an access policy
- Allowing a network access to the switch
- Configuring access policies by MAC address
- System access security enhancements
- Displaying the boot config flags status
- Enabling enhanced secure mode
- Creating accounts for different access levels
- Deleting accounts in enhanced secure mode
- Configuring a password for a specific user
- Returning the system to the factory defaults
- Configuring the password complexity rule
- Configuring the password length rule
- Configuring the change interval rule
- Configuring the reuse rule
- Configuring the maximum number of sessions
- Configuring the maximum age rule
- Configuring the pre- and post-notification rule
- System access configuration using EDM
- Chapter 14: ACLI show command reference
- Access, logon names, and passwords
- Basic switch configuration
- Current switch configuration
- CLI settings
- Ftp-access sessions
- Hardware information
- NTP server statistics
- Power summary
- Power information for power supplies
- System information
- System status (detailed)
- Telnet-access sessions
- Users logged on
- Port egress COS queue statistics
- CPU queue statistics
- Chapter 15: Port numbering and MAC address assignment reference
- Chapter 16: Supported standards, RFCs, and MIBs
- Glossary
Figure 6: Overview of the SSHv2 protocol
By using a combination of host, server, and session keys, the SSHv2 protocol can provide strong
authentication and secure communication over an insecure network, offering protection from the
following security risks:
• IP spoofing
• IP source routing
• Domain name server (DNS) spoofing
• Man-in-the-middle/TCP hijacking attacks
• Eavesdropping and password sniffing
Even if network security is compromised, traffic cannot be played back or decrypted, and the
connection cannot be hijacked.
The SSH secure channel of communication does not provide protection against break-in attempts or
denial-of-service (DoS) attacks.
With the SSHv2 server in the VSP switch, you can use an SSHv2 client to make a secure
connection to the VSP switch and work with commercially available SSHv2 clients. For more
information about supported clients, see
Table 37: Third-party SSH and SCP client software on
page 155. The VSP switch also supports outbound connections to remote SSHv2 servers to
provide complete inbound and outbound secure access.
Security features
The SSHv2 protocol supports the following security features:
• Authentication. This feature determines, in a reliable way, the SSHv2 client. During the log on
process, the SSHv2 client is queried for a digital proof of identity.
Supported authentications with the switch as a server for SSHv2, are: RSA, DSA, and
passwords. Supported authentications with the switch as a client for SSHv2, are: DSA and
passwords. The VSP switch does not support RSA when the switch acts as a client.
When the VSP switch acts as an SSH server, by default the VSP switch allows a maximum of
only four sessions, although it can accommodate up to eight sessions at a time. However, only
one SSH public key encryption per access level is allowed at a time. For instance, if multiple
Secure Shell
January 2017 Administering Avaya VSP 7200 Series and 8000 Series 148
Comments on this document? infodev@avaya.com