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Catalyst 3750 Switch Command Reference
OL-8552-07
Chapter 2 Catalyst 3750 Switch Cisco IOS Commands
ipv6 dhcp pool
ipv6 dhcp pool
Use the ipv6 dhcp pool global configuration command to enter Dynamic Host Configuration Protocol
for IPv6 (DHCPv6) pool configuration mode. Use the no form of this command to return to the default
settings.
ipv6 dhcp pool poolname
no ipv6 dhcp pool poolname
Note This command is available only if you have configured a dual IPv4 and IPv6 Switch Database
Management (SDM) template on the switch stack.
Syntax Description
Defaults No default is defined.
Command Modes Global configuration
Command History
Usage Guidelines To configure the dual IPv4 and IPv6 template, enter the sdm prefer dual-ipv4-and-ipv6 {default |
vlan} global configuration command, and reload the switch.
The ipv6 dhcp pool command enables the DHCPv6 pool configuration mode. These configuration
commands are available:
• address prefix IPv6-prefix: sets an address prefix for address assignment. This address must be in
hexadecimal, using 16-bit values between colons.
• lifetime t1 t2: sets a valid and a preferred time interval (in seconds) for the IPv6 address. The range
is 5 to 4294967295 seconds. The valid default is 2 days. The preferred default is 1 day. The valid
lifetime must be greater than or equal to the preferred lifetime. Specify infinite for no time interval.
• link-address IPv6-prefix: sets a link-address IPv6 prefix. When an address on the incoming
interface or a link-address in the packet matches the specified IPv6-prefix, the server uses the
configuration information pool. This address must be in hexadecimal, using 16-bit values between
colons.
poolname User-defined name for the DHCPv6 pool. The pool name can be a symbolic
string (such as Engineering) or an integer (such as 0).
Release Modification
12.2(46)SE The address prefix, lifetime, link-address, and vendor-specific keywords
were added to the command sub-modes.
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