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DHCP S
C
NOOPING
OMMANDS
IP DHCP SNOOPING
ip dhcp snooping
Overview
Use this command to enable DHCP snooping on one or more VLANs.
Use the no variant of this command to disable DHCP snooping on the VLANs.
Syntax
ip dhcp snooping
no ip dhcp snooping
Default
DHCP snooping is disabled on VLANs by default.
Mode
Interface Configuration (VLANs)
Usage
For DHCP snooping to operate on a VLAN, it must:
•
•
•
Any ACLs on a port that permit traffic matching DHCP snooping entries and block
other traffic, will block all traffic if DHCP snooping is disabled on the port. If you
disable DHCP snooping on particular VLANs using this command, you must also
remove any DHCP snooping ACLs from the ports to maintain connectivity (no
access-group
Examples
To enable DHCP snooping on VLANs 2 to 4, use the commands:
awplus#
awplus(config)#
awplus(config-if)#
To disable DHCP snooping on the switch, use the command:
awplus#
awplus(config)#
awplus(config-if)#
Related
ip dhcp snooping trust
Commands
service dhcp-snooping
show ip dhcp snooping
613-50137-01 Rev A
be enabled on the particular VLAN by using this command
be enabled globally on the switch by using the
command
have at least one port connected to a DHCP server configured as a trusted
port by using the
ip dhcp snooping trust
command).
configure terminal
interface vlan2-vlan4
ip dhcp snooping
configure terminal
interface vlan2-vlan4
no ip dhcp snooping
Command Reference for FS980M Series
AlliedWare Plus™ Operating System - Version 5.4.6-2.x
service dhcp-snooping
command
1171
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Troubleshooting
