Extreme Networks Px Series - Manual (Page 43)

Px Series Application Switch Installation and Configuration Guide 4-13
Using Secure Shell 2 (SSH2)
You are prompted to enter information to be used in generating the key. The key
generation process takes approximately ten minutes. Once the key has been generated,
you should save your configuration to preserve the key.
To use a key that has been previously created, use the following command:
config ssh2 key pregenerated
You are prompted to enter the pregenerated key. The key generation process generates
the SSH2 private host key. The SSH2 public host key is derived from the private host
key, and is automatically transmitted to the SSH2 client at the beginning of an SSH2
session.
Before you initiate a session from an SSH2 client, ensure that the client is configured for
any nondefault access list or TCP port information that you have configured on the
switch. Once these tasks are accomplished, you may establish an SSH2-encrypted
session with the switch. Clients must have a valid user name and password on the
switch in order to log into the switch after the SSH2 session has been established.
For additional information on the SSH protocol refer to [FIPS-186] Federal Information
Processing Standards Publication (FIPSPUB) 186, Digital Signature Standard, 18 May
1994. This can be download from:
ftp://ftp.cs.hut.fi/pub/ssh . General technical
information is also available from http://www.ssh.fi .
Using SCP2 from an External SSH2 Client
In ExtremeWare version 6.2.1 or later, the SCP2 protocol is supported for transferring
image and configuration files to the switch from the SSH2 client, and for copying the
switch configuration from the switch to an SSH2 client. The user must have
administrator-level access to the switch. The switch can be specified by its switch name
or IP address.
You can use any names for configuration or image files stored on the system running
the SSH2 client. However, files on the switch have predefined names, as follows:
• configuration.cfg —The current configuration
• incremental.cfg —The current incremental configuration
• primary.img —The primary ExtremeWare image
• secondary.img —The secondary ExtremeWare image
• bootrom.img —The BootROM image