R211x-HP Flexfabric 11900 Security Command Reference

Table Of Contents
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undo ip source binding { all | ip-address ip-address | ip-address ip-address mac-address mac-address
| mac-address mac-address } [ vlan vlan-id ]
Default
No static IPv4 source guard binding entry exists on an interface.
Views
Layer 2 Ethernet interface view, Layer 3 Ethernet interface view, VLAN interface view
Predefined user roles
network-admin
mdc-admin
Parameters
all: Specifies all the static IPv4 source guard binding entries on the interface. This keyword is only
effective in the undo ip source binding command.
ip-address ip-address: Specifies an IPv4 address for the static IPv4 source guard binding entry. The IPv4
address must be a class A, B, or C address, and cannot be 127.x.x.x, 0.0.0.0, or a multicast IP address.
mac-address mac-address: Specifies a MAC address for the static IPv4 source guard binding entry. The
MAC address must be in H-H-H format, and cannot be all 0s, all Fs (a broadcast address), or a multicast
address. Support for this option depends on the device model.
vlan vlan-id: Specifies a VLAN ID for the static IPv4 source guard binding entry. The value range is 1 to
4094. This option is supported only in Layer 2 Ethernet interface view.
Usage guidelines
Static IPv4 source guard binding entries on an interface filter incoming IPv4 packets, and can be used by
the ARP detection feature for user validity check.
The IP source guard does not use the VLAN ID in a static binding entry as a matching criterion to filter
packets. You must provide a VLAN ID when the static IPv4 source guard binding entry is used for ARP
detection. The specified VLAN must also be enabled with the ARP detection function. Otherwise, ARP
packets cannot pass the ARP detection. For more information about ARP detection, see Security
Configuration Guide.
You cannot configure static IPv4 source guard binding entries on an interface that is in a service
loopback group.
Examples
# On interface Ten-GigabitEthernet 1/0/1, configure a static IPv4 source guard binding entry to allow
only the packets whose source IP address is 192.168.0.1 and source MAC address is 0001-0001-0001 to
pass.
<Sysname> system-view
[Sysname] interface ten-gigabitethernet 1/0/1
[Sysname-Ten-GigabitEthernet1/0/1] ip source binding ip-address 192.168.0.1 mac-address
0001-0001-0001
Related commands
display ip source binding
ip source binding (system view)