Ip Source Guard Commands; Ip Source-Guard; Table 4-46 Ip Source Guard Commands - Samsung iES4028F Management Manual

4
Command Line Interface

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 4-164). 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.
Command

ip source-guard

ip source-guard
binding
show ip
source-guard
show ip
source-guard
binding
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
Command Mode
Interface Configuration (Ethernet)
Command Usage
• Source guard is used to filter traffic on an unsecure port which receives
messages from outside the network or firewall, and therefore may be subject
to traffic attacks caused by a host trying to use the IP address of a neighbor.
• Setting source guard mode to "sip" or "sip-mac" enables this function on the
selected port. Use the "sip" option to check the VLAN ID, source IP address,
and port number against all entries in the binding table. Use the "sip-mac"
option to check these same parameters, plus the source MAC address. Use
the no source guard command to disable this function on the selected port.
4-172

Table 4-46 IP Source Guard Commands

Function
Configures the switch to filter inbound traffic based on source IP
address, or source IP address and corresponding MAC address
Adds a static address to the source-guard binding table
Shows whether source guard is enabled or disabled on each
interface
Shows the source guard binding table
Mode Page
IC 4-172
GC 4-174
PE 4-175
PE 4-175