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DCS-3950 series Ethernet switch manual
Switch(Config)#ip dhcp snooping binding enable
Related Commands: ip dhcp snooping enable
19.2.2.3 ip dhcp snooping binding user
Command：ip dhcp snooping binding user <mac> address <ipAddr> <mask> vlan
<vid> interface [Ethernet] <ifname>
no Ip dhcp snooping binding user <mac> interface [Ethernet] <ifname>
Function： Configure the information of static binding users
Parameters：
mac：The MAC address of the static binding user, which is the only index of the binding
user.
ipAddr、mask：The IP address and mask of the static binding user;
vid：The VLAN ID which the static binding user belongs to；
ifname：The access interface of static binding user
Command mode：Globe Mode.
Default：DHCP Snooping has no static binding list entry by default.
Usage Guide： The static binding users is deal in the same way as the dynamic binding
users captured by DHCP SNOOPING; the follwoing actions are all allowed: notifying
DOT1X to be a controlled user of DOT1X, adding a trusted user list entry directly, adding a
bingding ARP list entry. The static binding uses will never be aged, and have a priority
higher than dynamic binding users. Only after the DHCP SNOOPING binding function is
enabled, the static binding users can be enabled.
Example：Configure static binding users
Switch(Config)#ip dhcp snooping binding user 00-03-0f-12-34-56 address 192.168.1.16
255.255.255.0 vlan 1 interface Ethernet0/0/16
Related Commands: ip dhcp snooping binding enable
19.2.2.4 ip dhcp snooping binding arp
Command：ip dhcp snooping binding arp
no ip dhcp snooping binding arp
Function： Enable the DHCP Snooping binding ARP funciton.
Parameters：None
Command mode：Globe Mode
Default： DHCP Snooping binding ARP funciton is disabled by default.
Usage Guide： When this function is enbaled, DHCP SNOOPING will add binding ARP
list entries according to binding information. Only after the binding function is enabled can
the binding ARP function be enabled. Binding ARP list entries are static entries without
configuration of reservation, and will be added to the NEIGHBOUR list directly. The
priority of binding ARP list entries is lower than the static ARP list entries set by
administrator and can be overwritten by static ARP list entries. However, if the static ARP
list entries has been removed, binding ARP list entries can not be recovered until DHCP
SNOOPING recapture the biding inforamtion. Adding binding ARP list entries is used to
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