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DHCP S
NOOPING
C
OMMANDS
4-269
show ip source-guard binding
This command shows the source guard binding table.
Command Mode
Privileged Exec
Example
DHCP Snooping Commands
DHCP snooping allows a switch to protect a network from rogue DHCP
servers or other devices which send port-related information to a DHCP
server. This information can be useful in tracking an IP address back to a
physical port. This section describes commands used to configure DHCP
snooping.
Console#show ip source-guard binding
MacAddress IpAddress Lease(sec) Type VLAN Interface
----------------- ------------- ---------- --------- ---- ---------
11-22-33-44-55-66 192.168.0.99 0 Static 1 Eth 1/5
Console#
Table 4-76 DHCP Snooping Commands
Command Function Mode Page
ip dhcp snooping Enables DHCP snooping globally GC 4-270
ip dhcp snooping
vlan
Deletes entries from the host
name-to-address table
GC 4-272
ip dhcp snooping
trust
Defines a default domain name for
incomplete host names
IC 4-273
ip dhcp snooping
verify
mac-address
Defines a list of default domain names for
incomplete host names
GC 4-274
ip dhcp snooping
information
option
Specifies the address of one or more name
servers to use for host name-to-address
translation
GC 4-275
ip dhcp snooping
information
policy
Enables DNS-based host name-to-address
translation
GC 4-276