Trusted Host - D-Link DGS-3200 Series User Manual

Parameter Description
Use the radio button to globally enable or disable Safeguard Engine settings for the Switch.
Safeguard
Engine State
Rising Used to configure the acceptable level of CPU utilization before the Safeguard Engine mechanism
Threshold is enabled. Once the CPU utilization reaches this percentage level, the Switch will move into
(20% - 100%) Exhausted mode, based on the parameters provided in this window.
Falling Used to configure the acceptable level of CPU utilization as a percentage, where the Switch leaves
the Safeguard Engine state and returns to normal mode.
Threshold
(20% - 100%)
Trap / Log Use the pull-down menu to enable or disable the sending of messages to the device's SNMP agent
and switch log once the Safeguard Engine has been activated by a high CPU utilization rate.
Mode Used to select the type of Safeguard Engine to be activated by the Switch when the CPU utilization
reaches a high rate. The user may select:
Fuzzy – If selected, this function will instruct the Switch to minimize the IP and ARP traffic flow
to the CPU by dynamically allotting an even bandwidth to all traffic flows.
Strict – If selected, this function will stop accepting all ARP packets not intended for the Switch,
and will stop receiving all unnecessary broadcast IP packets, until the storm has subsided.
The default setting is Fuzzy mode.

Trusted Host

Up to ten trusted host secure IP addresses may be configured and used for remote Switch management. It should be noted that if
one or more trusted hosts are enabled, the Switch will immediately accept remote instructions from only the specified IP address
or addresses. If you enable this feature, be sure to first enter the IP address of the station you are currently using.
To create a list of trusted IP addresses that can access the Switch, click Security > Trusted Host, which will open the following
window.
To configure secure IP addresses for trusted host management of the Switch, type the IP address and the net mask of the station
you are currently using in the two fields, as well as up to nine additional IP addresses of trusted hosts, one by one. Click the Apply
button to assign trusted host status to the IP addresses. This goes into effect immediately.
DGS-3200 Series Layer 2 Gigabit Ethernet Managed Switch
Figure 9- 3. Trusted Host window
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