3Com 3C16371 - LinkBuilder FMS - Hub, User Manual

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DUA1 663- 0BAA03
below. Other units will display the Unauthorized Device Action field
described below .
This field provides access to the security features from the serial port in
case you lock yourself out of in-band management.
When enabled, a default set of security features is applied to the unit
much as described under Unauthorized Device Action below. The first
address is learnt. Any different address will cause the port to be
disconnected. The learnt address will receive traffic addressed to it,
together with multicast and broadcast frames. Other traffic will be
scrambled. If you use a 3Com Transcend management application, you
have greater control over security, including support for multiple
address per port.
With the designated Hub 10 units, you can set up secure, resilient pairs
using a Transcend management application. Follow the instructions in
the manual for that application.
Unauthorized Device Action (Choice Field)
Off / Report Only / Disconnect And Report
This field specifies the action to be taken when an unauthorized device
is detected on the port. The management facility detects an
unauthorized device when there is a change in the source address of
frame or packets received by the port.
■
Off - means no action will be taken.
■
Report Only - means that a trap will be sent every 5 seconds to
notify the remote network manager that an unauthorized device is
accessing the port.
■
Disconnect And Report - indicates that a trap will be sent to the
network manager, and the port disabled. Refer to “Port Setup” on
page 3-36 f or details of how to re-enable the port.
Link Pulse (Choice Field) Enabled / Disabled
This field is applicable to 10BASE-T units only and will not be seen for
other types of unit.