NETGEAR M7100, M4100 manual Maximum Rate of Dhcp Messages

ProSafe M4100 and M7100 Managed Switches

2.Check to make sure the binding database has the static entry.

(GSM7328S) #show ip dhcp snooping binding Total number of bindings: 2

MAC Address	IP Address	VLAN Interface		Type	Lease (Secs)
-----------------------------------	---------------		-------- -----------			-------
00:11:11:11:11:11	192.168.10.1	1	1/0/2		STATIC
00:16:76:A7:88:CC	192.168.10.89	1	1/0/2	DYNAMIC		86348

Web Interface: Enter Static Binding into the Binding Database

1.Select Security > Control > DHCP Snooping > Binding Configuration.

2.Fill in the fields for the static binding and click Apply.

3.Check to make sure that the binding database shows the entry in the Static Binding Configuration table.

Maximum Rate of DHCP Messages

To prevent DHCP packets being used as DoS attachments when DHCP snooping is enabled, the snooping application enforces a rate limit for DHCP packets received on untrusted interfaces. DHCP snooping monitors the receive rate on each interface separately. If the receive rate exceeds the configured limit, DHCP snooping brings down the interface. The user must specify “no shutdown” on this interface to further work with that port.

310 Chapter 15. Security Management