DXS-3600 Series Layer 3 Managed 10Gigabit Ethernet Switch CLI Reference Guide
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51.
IP Source Guard Commands
51-1 ip verify source vlan dhcp-snooping
This command is used to enable IP source guard for a port. Use the
no
form of the command to disable
IP source guard.
ip verify source vlan dhcp-snooping [ip-mac]
no ip verify source vlan dhcp-snooping [ip-mac]
Parameters
ip-mac
(Optional) Specifies to check both IP address and MAC address of the
received IP packets.
Default
By default, this option is disabled.
Command Mode
Interface Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
The command is available for physical port and port channel configuration. Use this command to enable
the IP source guard on the configured port.
When a port is enabled for IP source guard, the IP packet that arrives at the port will be validated via the
port ACL. Port ACL is a hardware mechanism and its entry can come from either a manual configured
entry or the DHCP snooping binding database. The packet that fails to pass the validation will be dropped.
There are two types of validations.
•
If the option
ip-mac
is not specified, the validation is based on the source IP address and VLAN
check only.
•
If the option
ip-mac
is specified, the validation is based on the source MAC address, VLAN and
IP address.
Example
This example shows how to enable IP Source Guard for Ethernet 1/0/1.
Switch# configure terminal
Switch(config)# interface ethernet 1/0/1
Switch(config-if)# ip verify source vlan dhcp-snooping
Switch(config-if)#
51-2 ip source binding
This command is used to create a static entry used for IP source guard. Use the
no
form of the command
to delete a static binding entry.
ip source binding MAC-ADDRESS vlan VLAN-ID IP-ADDRESS interface INTERFACE-ID [, | -]
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