Dell PowerConnect 3524 User Manual

156 DHCP Snooping
Syntax
• ip dhcp snooping verify
• no ip dhcp snooping verify
Default Configuration
The default configuration is that the switch verifies the source MAC address in a DHCP packet that is
received on untrusted ports matches the client hardware address in the packet.
Command Mode
Global Configuration mode.
User Guidelines
There are no user guidelines for this command.
Example
The following example configures a switch to verify on an untrusted port that the source MAC address in
a DHCP packet matches the client hardware address.
ip dhcp snooping database
The ip dhcp snooping database Global Configuration mode command configures the DHCP snooping
binding file. Use the no form of this command to delete the binding file.
Syntax
• ip dhcp snooping database
• no ip dhcp snooping database
Default Configuration
The URL is not defined.
Command Mode
Global Configuration mode.
User Guidelines
• To ensure that the lease time in the database is accurate, Simple Network Time Protocol (SNTP) is
enabled and configured.
• The switch writes binding changes to the binding file only when the switch system clock is
synchronized with SNTP.
console(config)#ip dhcp snooping verify
book.book Page 156 Thursday, December 18, 2008 7:40 PM

Dell PowerConnect 3524 Specifications

General

Throughput	9.5 Mpps
Number of queues	4
MAC address table	8000 entries
Maximum data transfer rate	0.1 Gbit/s
Supported data transfer rates	10/100 Mbps
10G support	No
Number of VLANs	256
Flow control support	Yes
Networking standards	IEEE 802.1D, IEEE 802.1p, IEEE 802.1Q, IEEE 802.1s, IEEE 802.1w, IEEE 802.3ad
Input frequency	50/60 Hz
Weight (imperial)	11 lbs
Dimensions (WxDxH)	440 x 257 x 43.2 mm
Networking features	Gigabit Ethernet, Fast Ethernet
Authentication method	RADIUS, TACACS+
Connectivity technology	Wired
Dimensions (W x D x H) (imperial)	17.3 x 10.12 x 1.7 \
Switch type	Managed
Switch layer	L2
Data link protocols	Ethernet
Supported network protocols	HTTP, HTTPS/SSL, SSH
Power connector	DC-in jack
Gigabit Ethernet (copper) ports quantity	2
Basic switching RJ-45 Ethernet ports quantity	24
Product color	Black
Power source	AC
Input voltage	100 - 240 V
Storage temperature (T-T)	-20 - 70 °C
Operating temperature (T-T)	0 - 45 °C
Storage relative humidity (H-H)	10 - 95 %
Operating relative humidity (H-H)	10 - 90 %

Weight and Dimensions

Weight	5000 g