User's Manual
Table Of Contents
- Contents
- Preface
- The Command Line Interface
- First-Time Configuration
- Using the Setup Utility
- Setting Passwords
- Menu Basics
- The Information Menu
- Information Menu
- System Information
- Layer 2 Information
- Layer 3 Information
- IP Routing Information
- ARP Information
- BGP Information
- BGP Peer information
- BGP Summary information
- OSPF Information
- Routing Information Protocol Information
- IP Information
- IGMP Multicast Group Information
- IGMP Group Information
- IGMP Multicast Router Port Information
- IGMP Mrouter Information
- VRRP Information
- Quality of Service Information
- 802.1p Information
- Access Control List Information
- Link Status Information
- Port Information
- Logical Port to GEA Port Mapping
- Fiber Port SFP Status
- Information Dump
- The Statistics Menu
- The Configuration Menu
- Configuration Menu
- Viewing, Applying, and Saving Changes
- System Configuration
- Port Configuration
- Layer 2 Configuration
- 802.1x Configuration
- Rapid Spanning Tree Protocol/ Multiple Spanning Tree Protocol Configuration
- Common Internal Spanning Tree Configuration
- Spanning Tree Configuration
- GVRP Configuration
- GVRP Port Configuration
- Trunk Configuration
- IP Trunk Hash Configuration
- LACP Configuration
- Layer 2 Failover Configuration
- VLAN Configuration
- Protocol-based VLAN Configuration
- Private VLAN Configuration
- Layer 3 Configuration
- IP Interface Configuration
- Default Gateway Configuration
- IP Static Route Configuration
- IP Multicast Route Configuration
- ARP Configuration
- IP Forwarding Configuration
- Network Filter Configuration
- Routing Map Configuration
- Routing Information Protocol Configuration
- Open Shortest Path First Configuration
- Border Gateway Protocol Configuration
- IGMP Configuration
- Domain Name System Configuration
- Bootstrap Protocol Relay Configuration
- VRRP Configuration
- Quality of Service Configuration
- Access Control List Configuration
- Port Mirroring Configuration
- Setup
- Dump
- Saving the Active Switch Configuration
- Restoring the Active Switch Configuration
- The Operations Menu
- The Boot Options Menu
- The Maintenance Menu
- Alteon OS Syslog Messages
- Alteon OS SNMP Agent
- Glossary
- Index

Alteon OS Command Reference
24
The Command Line Interface 43W7774, May 2007
Establishing an SSH Connection
Although a remote network administrator can manage the configuration of a GbE Switch Module
via Telnet, this method does not provide a secure connection. The SSH (Secure Shell) protocol
enables you to securely log into another computer over a network to execute commands
remotely. As a secure alternative to using Telnet to manage switch configuration, SSH ensures
that all data sent over the network is encrypted and secure.
The switch can do only one session of key/cipher generation at a time. Thus, a SSH/SCP client
will not be able to login if the switch is doing key generation at that time or if another client
has just logged in before this client. Similarly, the system will fail to do the key generation if a
SSH/SCP client is logging in at that time.
The supported SSH encryption and authentication methods are listed below.
Server Host Authentication: Client RSA-authenticates the switch in the beginning of
every connection.
Key Exchange: RSA
Encryption: 3DES-CBC, DES
User Authentication: Local password authentication, Radius
The following SSH clients have been tested:
SSH 1.2.23 and SSH 1.2.27 for Linux (freeware)
SecureCRT 3.0.2 and SecureCRT 3.0.3 (Van Dyke Technologies, Inc.)
F-Secure SSH 1.1 for Windows (Data Fellows)
NOTE – The Alteon OS implementation of SSH is based on SSH version 1.5 and supports SSH-
1.5-1.X.XX. SSH clients of other versions (especially Version 2) are not supported.