McDATA Eclipse 2640 SAN, Administration And Configuration Manual

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Eclipse™ 2640 SAN Router Administration and Configuration Manual
Configuring iSCSI Authentication
Figure 5-26 RADIUS Server Located on Alternate TCP Port
The primary and secondary RADIUS servers can be connected in any
combination of the supported configurations. For example, the
primary RADIUS server can be located on iSCSI port's subnet while
the secondary RADIUS server can be located on iFCP
subnet.
Use the “ping” command to verify logical connectivity from the
RADIUS server to the iSCSI port (internal or external). When
connecting the RADIUS server to the iSCSI external port subnet, the
external iSCSI port IP address is used.