Ipv6 Dhcp Guard Preference - Cisco 300 Series Cli Manual
Stackable managed switches
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25
505
Example 2—The following example defines a DHCPv6 Guard named policy1 by
multiple steps:
switchxxxxxx(config)#
switchxxxxxx(config-dhcp-guard)#
switchxxxxxx(config-dhcp-guard)#
switchxxxxxx(config)#
switchxxxxxx(config-dhcp-guard)#
switchxxxxxx(config-dhcp-guard)# exit
Example 3—The following example removes an attached DHCPv6 Guard policy:
switchxxxxxx(config)#
Policy policy1 is applied on the following ports:
gi11, gi12
The policy1 will be detached and removed, are you sure [Y/N]Y
25.17 ipv6 dhcp guard preference
To globally enable verification of the preference in messages sent by DHCPv6
servers, use the ipv6 dhcp guard preference command in Global Configuration
mode. To return to the default, use the no form of this command.
Syntax
ipv6 dhcp guard preference {[maximum
no ipv6 dhcp guard preference [maximum] [minimum]
Parameters
•
value
maximum
value argument. Range 0-255. The value of the high boundary must be
equal to or greater than the value of the low boundary.
•
value
minimum
value argument. Range 0-255.
ipv6 dhcp guard policy policy1
match server address list1
exit
ipv6 dhcp guard policy policy1
device-role server
no ipv6 dhcp guard policy policy1
value
—Advertised preference value is lower than or equal to the
—Advertised preference value is greater than or equal to the
OL-32830-01 Command Line Interface Reference Guide
IPv6 First Hop Security
value
] [minimum
]}
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