118 Fabric OS Administrator’s Guide
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Secure Copy
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Table 19 describes additional software or certificates that you must obtain to deploy secure
protocols.
The security protocols are designed with the four main use cases described in Table 20.

Secure Copy

The secure copy protocol (SCP) runs on port 22. It encrypts data during transfer, thereby avoiding
packet sniffers that attempt to extract useful information during data transfer. SCP relies on SSH to
provide authentication and security.
SSH Secure Shell (SSH) is a network protocol that allows data to be exchanged over a
secure channel between two computers. Encryption provides confidentiality and
integrity of data. SSH uses public-key cryptography to authenticate the remote
computer and allow the remote computer to authenticate the user, if necessary.
SSL Fabric OS uses secure socket layer (SSL) to support HTTPS. A certificate must be
generated and installed on each switch to enable SSL. Supports SSLv3, 128-bit
encryption by default.
TABLE 19 Items needed to deploy secure protocols
Protocol Host side Switch side
SSHv2 Secure shell client None
HTTPS No requirement on host side
except a browser that
supports HTTPS
Switch IP certificate for SSL
SCP SSH daemon, SCP server None
SNMPv1, SNMPv2, SNMPv3 None None
TABLE 20 Main security scenarios
Fabric Management
interfaces
Comments
Nonsecure Nonsecure No special setup is needed to use Telnet or HTTP.
Nonsecure Secure Secure protocols may be used. An SSL switch certificate must be
installed if HTTPS is used.
Secure Secure Switches running earlier Fabric OS versions can be part of the
secure fabric, but they do not support secure management.
Secure management protocols must be configured for each
participating switch. Nonsecure protocols may be disabled on
nonparticipating switches.
If SSL is used, then certificates must be installed. For more
information on installing certificates, refer to “Installing a switch
certificate” on page 125.
Secure Nonsecure You must use SSH because Telnet is not allowed with some features.
TABLE 18 Secure protocol support
Protocol Description