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PowerConnect B-Series FCX Configuration Guide 1203
53-1002266-01
Chapter
33
Configuring SSH2 and SCP
Table 208 lists individual Dell PowerConnect switches and the SSH2 and Secure Copy features
they support.
SSH version 2 support
Secure Shell (SSH) is a mechanism for allowing secure remote access to management functions on
a Dell PowerConnect device. SSH provides a function similar to Telnet. Users can log into and
configure the device using a publicly or commercially available SSH client program, just as they can
with Telnet. However, unlike Telnet, which provides no security, SSH provides a secure, encrypted
connection to the device.
The Dell SSH2 implementation is compatible with all versions of the SSH2 protocol (2.1, 2.2, and
so on). At the beginning of an SSH session, the Brocade device negotiates the version of SSH2 to
be used. The highest version of SSH2 supported by both the Brocade device and the client is the
version that is used for the session. Once the SSH2 version is negotiated, the encryption algorithm
with the highest security ranking is selected to be used for the session.
Brocade devices also support Secure Copy (SCP) for securely transferring files between a Brocade
device and SCP-enabled remote hosts.
NOTE
The SSH feature includes software that is copyright Allegro Software Development Corporation.
SSH2 is supported in the Layer 2 and Layer 3 codes.
SSH2 is a substantial revision of Secure Shell, comprising the following hybrid protocols and
definitions:
• SSH Transport Layer Protocol
• SSH Authentication Protocol
• SSH Connection Protocol
• SECSH Public Key File Format
TABLE 208 Supported SSH2 and Secure Copy features
Feature PowerConnect B-Series FCX
Secure Shell (SSH) version 2 Yes
AES encryption for SSH2 Yes
Optional parameters for SSH2 Yes
Using secure copy (SCP) with SSH2 Yes
Filtering SSH access using ACLs Yes
Terminating an active SSH connection Yes