
130 Configuring advanced security
Fabric OS 5.3.0 switch-to-switch authentication implementation is fully backward compatible with v3.2,
v4.2, v4.4, v5.0, v5.1, and v5.2.
Use
secAuthSecret
to set a shared secret on the switch. When configured, the
secret key pair
are used
for authentication. Authentication occurs whenever there is a state change for the switch or port. The state
change can be due to a switch reboot, a switch or port disable and enable, or the activation of a policy.
Figure 2
DH-CHAP authentication
If you use DH-CHAP authentication, then a
secret key pair
must be installed only in connected fabric
elements. However, as connections are changed, new
secret key pair
s must be installed between newly
connected elements. Alternatively, a
secret key pair
for all possible connections may be initially installed,
enabling links to be arbitrarily changed while still maintaining a valid
secret key pair
for any new
connection.
The switch authentication (AUTH) policy initiates DH-CHAP/FCAP authentication on all E_Ports. This policy
is persistent across reboots, which means authentication will be initiated automatically on ports or switches
brought online if the policy is set to activate authentication. The AUTH policy is distributed using the
distribute
command. The automatic distribution of the AUTH policy is not supported.
Once the AUTH policy is activated you are not allowed to implement a Secure Fabric OS environment. The
secmodeenable
command fails if any of the switches have an active AUTH policy.
The default configuration directs the switch to attempt FCAP authentication first, DH-CHAP second. The
switch may be configured to negotiate FCAP, DH-CHAP, or both.
The DH group is used in the DH-CHAP protocol only. The FCAP protocol exchanges the DH group
information, but does not use it.
The AUTH policy is designed to accommodate mixed fabric environments that contain Fabric OS 5.3.0
and pre-5.3.0 switches. The policy states PASSIVE and OFF allow connection from Fabric OS 5.3.0
switches to pre-5.3.0 switches. These policy states do not allow switches to send the authentication
negotiation and therefore continue with the rest of port initialization.
Key database on switch
Local secret A
Peer secret B
Key database on switch
Local secret B
Peer secret A
Summary of Contents for AA979A - StorageWorks SAN Switch 2/8V
Page 1: ...HP StorageWorks Fabric OS 5 3 x administrator guide Part number 5697 0244 November 2009 ...
Page 16: ...16 ...
Page 20: ...18 ...
Page 24: ...24 Introducing Fabric OS CLI procedures ...
Page 116: ...118 Maintaining configurations ...
Page 170: ...172 Managing administrative domains ...
Page 200: ...202 Installing and maintaining firmware ...
Page 222: ...224 Routing traffic ...
Page 274: ...286 Administering FICON fabrics ...
Page 294: ...306 Working with diagnostic features ...
Page 350: ...362 Administering Extended Fabrics ...
Page 438: ...440 Configuring the PID format ...
Page 444: ...446 Configuring McData Open Fabric mode ...
Page 450: ...452 Understanding legacy password behaviour ...