Ip source guard commands, Ip source-guard, Table 22-3 – Edge Products ES3528-WDM User Manual

Page 373

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IP Source Guard Commands

22-3

22

Example
The following example enables port security for port 5, and sets the response to a
security violation to issue a trap message:

Related Commands

shutdown (24-6)
mac-address-table static (28-1)

IP Source Guard Commands

IP Source Guard is a security feature that filters IP traffic on network interfaces
based on manually configured entries in the IP Source Guard table, or static and
dynamic entries in the DHCP Snooping table when enabled (see “DHCP Snooping
Commands” on page 22-7)
. IP source guard can be used to prevent traffic attacks
caused when a host tries to use the IP address of a neighbor to access the network.
This section describes commands used to configure IP Source Guard.

ip source-guard

This command configures the switch to filter inbound traffic based source IP
address, or source IP address and corresponding MAC address. Use the no form to
disable this function.

Syntax

ip source-guard {sip | sip-mac}
no ip source-guard

sip - Filters traffic based on IP addresses stored in the binding table.
sip-mac - Filters traffic based on IP addresses and corresponding MAC

addresses stored in the binding table.

Default Setting

Disabled

Console(config)#interface ethernet 1/5
Console(config-if)#port security action trap

Table 22-3 IP Source Guard Commands

Command

Function

Mode

Page

ip source-guard

Configures the switch to filter inbound traffic based on source IP

address, or source IP address and corresponding MAC address

IC

22-3

ip source-guard

binding

Adds a static address to the source-guard binding table

GC

22-5

show ip

source-guard

Shows whether source guard is enabled or disabled on each

interface

PE

22-6

show ip

source-guard

binding

Shows the source guard binding table

PE

22-6

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