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Configuring a static IPv4SG binding
You can configure global static and interface-specific static IPv4SG bindings.
Global static bindings take effect on all interfaces.
Interface-specific static bindings take priority over global static bindings. An interface first uses the static
bindings on the interface to match packets. If no match is found, the interface uses the global bindings.
Configuring a global static IPv4SG binding
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure a global
static IPv4SG binding.
ip
source
binding ip-address
ip-address
mac-address
mac-address
No global static IPv4SG
binding exists.
Configuring a static IPv4SG binding on an interface
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enter interface view.
interface
interface-type
interface-number
The following interface types are supported:
•
Layer 2 Ethernet interface.
•
VLAN interface.
3.
Configure a static
IPv4SG binding.
ip
source
binding
{
ip-address
ip-address
| ip-address
ip-address
mac-address
mac-address
|
mac-address
mac-address
} [
vlan
vlan-id
]
By default, no static IPv4SG binding is
configured on an interface.
The
vlan
vlan-id
option is supported only in
Layer 2 Ethernet interface view.
To configure a static IPv4SG binding for the
ARP detection function, the
vlan
vlan-id
option must be specified, and ARP detection
must be enabled for the specified VLAN.
You can configure the same static IPv4SG
binding on different interfaces.
Configuring the IPv6SG feature
Enabling IPv6SG on an interface
When you enable IPv6SG on an interface, the static and dynamic IPv6SG are both enabled.
•
Static IPv6SG uses static bindings configured by using the
ipv6 source binding
command.
•
Dynamic IPv6SG generates dynamic bindings from related source modules. IPv6SG uses the
bindings to filter incoming IPv6 packets based on the matching criteria specified in the
ipv6 verify
source
command.
To implement dynamic IPv6SG, make sure DHCPv6 snooping operates correctly on the network.
To enable the IPv6SG feature on an interface: