Cisco Catalyst 3550 User Manual

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Catalyst 3550 Multilayer Switch Command Reference
OL-8566-02
Chapter 2 Catalyst 3550 Switch Cisco IOS Commands
ip dhcp snooping trust
ip dhcp snooping trust
Use the ip dhcp snooping trust interface configuration command to configure a port as trusted for
DHCP snooping purposes. Use the no form of this command to return to the default setting.
ip dhcp snooping trust
no ip dhcp snooping trust
Syntax Description This command has no arguments or keywords.
Defaults DHCP snooping trust is disabled.
Command Modes Interface configuration
Command History
Usage Guidelines Configure as trusted ports that are connected to a DHCP server or to other switches or routers. Configure
as untrusted ports that are connected to DHCP clients.
Examples This example shows how to enable DHCP snooping trust on a port:
Switch(config-if)# ip dhcp snooping trust
You can verify your settings by entering the show ip dhcp snooping privileged EXEC command.
Related Commands
Release Modification
12.1(19)EA1 This command was introduced.
Command Description
show ip dhcp snooping Displays the DHCP snooping configuration.
show ip dhcp snooping binding Displays the DHCP snooping binding information.

Cisco Catalyst 3550 Specifications

General

Category	Switch
QoS	Yes
Form Factor	Rack-mountable
Manageable	Yes
RAM	64 MB
Model	Catalyst 3550
Uplink Ports	2 x GBIC (Gigabit Interface Converter) or SFP (Small Form-factor Pluggable)
Layer Support	Layer 3
VLAN Support	Yes
MAC Address Table Size	12000 entries
Routing Protocol	EIGRP
Features	QoS
Operating Temperature	32 to 113°F (0 to 45°C)
Operating Humidity	10 - 95% (non-condensing)
Ports	24 or 48 10/100 ports