Install guide

52 DHCP Snooping Enhancements Release Note
Software Version 2.9.1
C613-10486-00 REV C
Command Reference Updates
This section describes each new command and the changed portions of
modified commands and output screens. For modified commands and output,
the new parameters, options, and fields are shown in bold.
add dhcpsnooping binding
Syntax ADD DHCPSnooping BINDing[=macaddr] INTerface=vlan IP=ipadd
POrt=port-number [ROUter=ipadd,ipadd...]
Description This command adds a static entry to the DHCP snooping binding database.
The new router parameter allows you to specify the default access routers for
the static entry.
Example To add a static DHCP snooping entry for a client with the IP address
192.168.12.101, on port 6 of vlan101, that has access to two access routers with
the IP addresses 66.105.1.2 and 66.105.1.4, use the command:
add dhcps bind int=vlan101 ip=192.168.12.101 po=6
rou=66.105.1.2,66.105.1.4
delete dhcpsnooping binding
Syntax DELete DHCPSnooping BINDing IP=ipadd
Description This command deletes a dynamic or static entry from the DHCP snooping
binding database. The new ip parameter specifies the IP address of the
database entry to delete, in dotted decimal notation. You no longer need to
specify the MAC address of the static entry to delete it.
Example To delete a DHCP snooping entry for a client with the IP address
192.168.12.101, use the command:
del dhcps bind ip=192.168.12.101
Parameter Description
BINDing The MAC address of the client. Specifying a MAC address is now
optional.
ROUter An optional comma separated list of IP addresses that gives the default
access routers for this client. Use this parameter if adding a DHCP
snooping binding for use in conjunction with MAC-Forced Forwarding.