HP 6125G HP 6125G & 6125G/XG Blade Switches Security Command Reference - Page 282

mac-forced-forwarding, mac-forced-forwarding gateway probe

Page 282 highlights

mac-forced-forwarding Syntax mac-forced-forwarding { auto | default-gateway gateway-ip } View undo mac-forced-forwarding VLAN view Default level 2: System level Parameters auto: Specifies the automatic mode. default-gateway gateway-ip: Specifies the IP address of the default gateway in the manual mode. Description Use mac-forced-forwarding to enable MFF and specify an MFF operating mode. To enable the manual mode, you need to specify a default gateway. Use undo mac-forced-forwarding to disable MFF. By default, MFF is disabled. If you execute this command repeatedly, the last configuration takes effect. If the automatic mode is specified, make sure that DHCP snooping works normally; if the manual mode is configured, make sure that ARP snooping works normally. For a network (or VLAN) with IP addresses manually configured, the gateway IP address should be manually configured with the mac-forced-forwarding default-gateway gateway-ip command; for a network (or VLAN) running DHCP, the gateway IP address can be manually configured with the mac-forced-forwarding default-gateway gateway-ip command, or can be resolved from the Option field in the DHCP messages. Examples # Enable MFF in the automatic mode for VLAN 1. system-view [Sysname] vlan 1 [Sysname-vlan1] mac-forced-forwarding auto mac-forced-forwarding gateway probe Syntax mac-forced-forwarding gateway probe View undo mac-forced-forwarding gateway probe VLAN view Default level 2: System level 273

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273
mac-forced-forwarding
Syntax
mac-forced-forwarding
{
auto
|
default-gateway
gateway-ip
}
undo mac-forced-forwarding
View
VLAN view
Default level
2: System level
Parameters
auto
: Specifies the automatic mode.
default-gateway
gateway-ip
: Specifies the IP address of the default gateway in the manual mode.
Description
Use
mac-forced-forwarding
to enable MFF and specify an MFF operating mode. To enable the manual
mode, you need to specify a default gateway.
Use
undo mac-forced-forwarding
to disable MFF.
By default, MFF is disabled.
If you execute this command repeatedly, the last configuration takes effect.
If the automatic mode is specified, make sure that DHCP snooping works normally; if the manual mode
is configured, make sure that ARP snooping works normally.
For a network (or VLAN) with IP addresses manually configured, the gateway IP address should be
manually configured with the
mac-forced-forwarding default-gateway
gateway-ip
command; for a
network (or VLAN) running DHCP, the gateway IP address can be manually configured with the
mac-forced-forwarding default-gateway
gateway-ip
command, or can be resolved from the Option field
in the DHCP messages.
Examples
# Enable MFF in the automatic mode for VLAN 1.
<Sysname> system-view
[Sysname] vlan 1
[Sysname-vlan1] mac-forced-forwarding auto
mac-forced-forwarding gateway probe
Syntax
mac-forced-forwarding gateway probe
undo mac-forced-forwarding gateway probe
View
VLAN view
Default level
2: System level