Ruckus Wireless ZoneDirector 1100 User Manual page 128

Configuring Wireless Intrusion Prevention
Rogue DHCP Server Detection
• If the built-in DHCP server is enabled, ZoneDirector will generate an event when
it detects any other DHCP server on the network.
• If the built-in DHCP server is disabled, ZoneDirector will generate events when
it detects two or more DHCP servers on the network. You will need to find these
DHCP servers on the network, determine which ones are rogue, and then
disconnect them or shut down the DHCP service on them.
The Rogue DHCP Server Detection feature is enabled by default. If it is disabled,
use the following procedure to re-enable:
To enable rogue DHCP server detection on ZoneDirector (enabled by default)
1 Go to Configure > WIPS.
2 In the Rogue DHCP Server Detection section, select the Enable rogue DHCP
server detection check box.
3 Click the Apply button that is in the same section.
You have completed enabling rogue DHCP server detection. Ruckus Wireless
recommends checking the Monitor > All Events/Activities page periodically to
determine if ZoneDirector has detected any rogue DHCP servers. When a rogue
DHCP server is detected, the following event appears on the All Events/Activities
page:
Rogue DHCP server on [IP_address] has been detected
If the check box is cleared, ZoneDirector will not generate these events.
NOTE: Rogue DHCP server detection only works on the ZoneDirector's
management IP subnet.
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