DGS-1510 Series Gigabit Ethernet SmartPro Switch CLI Reference Guide
320
Interface Configuration Mode.
Command Default Level
Level: 12.
Usage Guideline
When a port is enabled for IMPB
strict-mode
access control, a host can only access the port after the
host sends ARP or IP packets and the ARP packet or IP packet sent by the host passes the binding
check. To pass the binding check, the source IP address, source MAC address, VLAN ID, and arrival
port number must match any of the entries defined by either the IP source guard static binding entry
or the DHCP snooping learned dynamic binding entry.
When a port is enabled for IMPB
loose-mode
access control, a host will be denied to access the port
after the host sends ARP or IP packets and the ARP packet or IP packet sent by the host does not
pass the binding check. To pass the binding check, the source IP address, source MAC address,
VLAN ID, and arrival port must match any of the entries defined by either the IP source guard static
binding entry or the DHCP snooping learned dynamic binding entry.
Example
This example shows how to enable the strict-mode IMPB access control on eth3/0/10.
Switch# configure terminal
Switch(config)# interface eth3/0/10
Switch(config-if)# ip ip-mac-port-binding strict
Switch(config-if)#
37-3 show ip ip-mac-port-binding
This command is used to display the IMPB configuration settings or the entries blocked by IMPB
access control.
show ip ip-mac-port-binding [interface
INTERFACE-ID
[, | -]] [violation]
Parameters
interface
INTERFACE-ID
(Optional) Specifies to display for the specified interface.
,
(Optional) Specifies a series of interfaces, or separate a range of
interfaces from a previous range. No space is allowed before and
after the comma.
-
(Optional) Specifies a range of interfaces. No space is allowed
before and after the hyphen.
violation
(Optional) Specifies to display the blocked entry.
Default
None.
Command Mode
EXEC Mode or Any Configuration Mode.
Command Default Level
Level: 1.
Usage Guideline
Use this command to display the IMPB configuration or use the
show ip ip-mac-port-binding
violation
command to display the entries blocked because of the IMPB check violation.
Example
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