Dell PowerConnect 5548 User Guide - Page 573

Configuring DHCP Snooping Trusted Interfaces Using CLI Commands The following table summarizes the CLI commands for configuring DHCP snooping trusted interfaces. Table 19-4. DHCP Snooping Trusted Interfaces CLI Commands CLI Command Description ip dhcp snooping trust Configures an interface as trusted for DHCP no ip dhcp snooping snooping purposes. trust Use the no form of this command to return to the default setting. The following is an example of some of the CLI commands: console(config)# interface gi1/0/5 console(config-if)# ip dhcp snooping trust Snooping Binding Database Entries in the DHCP Snooping Binding database consist of pairs of MAC/IP addresses. In addition to the entries added by DHCP snooping, entries to the Snooping Binding database can be manually added or deleted. These entries are added to the Snooping Binding database and Snooping Binding file, if it exists, but they are not added to the configuration files. A manually-added entry can be either dynamic or a static. When configuring a dynamic entry, an expiration date must be assigned. The refresh time (in seconds) of the binding table is added in the Global Parameters pages. Dell PowerConnect 55xx Systems User Guide 573