Extreme Networks ExtremeWare 7.5, Command Reference Manual

Page: 1009 / 2546

enable source-ip-lockdown ports
ExtremeWare 7.5 Command Reference Guide 1009
enable source-ip-lockdown ports
enable source-ip-lockdown ports [all | <portlist>]
Description
Enables the source IP lockdown feature.
Syntax Description
Default
By default source IP lockdown is disabled.
Usage Guidelines
This feature applies only to the Layer 3 environment. The switch allows only those hosts whose IP
addresses are assigned by the locally configured DHCP server (switch acting as a DHCP server) or
assigned by an external DHCP server. In the latter case, the switch should be configured as a bootp
relay. For statically configured IP ARP entries, the MAC address (specified during the addition of a IP
ARP entry) should already exist in the FDB. Before enabling source IP lockdown on a port, the switch
should be configured either as a DHCP Server or a BOOTP Relay.
Example
The following command enables source IP lockdown on ports 3 and 5
enable source-ip-lockdown ports 3,5
History
This command was first available in ExtremeWare 7.4.
Platform Availability
This command is available on all platforms
port-list Specifies one or more ports for which source IP lockdown should be enabled.On a modular switch, can
be a list of slots and ports. On a stand-alone switch, can be one or more port numbers. May be in the
form 1, 2, 3-5, 1:*, 1:5, 1:6-1:8.
all Specifies all ports.