Cisco Catalyst 3750-X Command Reference

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Catalyst 3750-X and 3560-X Switch Command Reference
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Chapter 2 Catalyst 3750-X and 3560-X Switch Cisco IOS Commands
ipv6 dhcp server
If the packet was directly received from the client, the server performs this same matching, but it uses
all the IPv6 addresses configured on the incoming interface when performing the match. Once again, the
server selects the longest prefix match.
The rapid-commit keyword enables the use of the two-message exchange.
If the preference keyword is configured with a value other than 0, the server adds a preference option
to carry the preference value for the advertise messages. This action affects the selection of a server by
the client. Any advertise message that does not include a preference option is considered to have a
preference value of 0. If the client receives an advertise message with a preference value of 255, the
client immediately sends a request message to the server from which the message was received.
If the allow-hint keyword is specified, the server allocates a valid client-suggested address in the solicit
and request messages. The prefix address is valid if it is in the associated local prefix address pool and
it is not assigned to a device. If the allow-hint keyword is not specified, the server ignores the client hint,
and an address is allocated from the free list in the pool.
The DHCPv6 client, server, and relay functions are mutually exclusive on an interface. When one of
these functions is already enabled and you try to configure a different function on the same interface, the
switch returns one of these messages:
Interface is in DHCP client mode
Interface is in DHCP server mode
Interface is in DHCP relay mode
Examples This example enables DHCPv6 for the pool named testgroup:
Switch(config-if)# ipv6 dhcp server testgroup
Related Commands Command Description
ipv6 dhcp pool Configures a DHCPv6 pool and enters DHCPv6 pool configuration mode.
show ipv6 dhcp
interface
Displays DHCPv6 interface information.

Cisco Catalyst 3750-X Specifications

General

Switching Capacity	160 Gbps
Stacking Bandwidth	64 Gbps
Max Stacking Units	9
Layer Support	Layer 2 and Layer 3
Form Factor	Rack-mountable
DRAM	256 MB
Flash Memory	64 MB
Model	Cisco Catalyst 3750-X Series
Ports	24 or 48 10/100/1000 Ethernet ports
Uplink Interfaces	4 SFP or 2 SFP+
Features	StackWise Plus, EnergyWise
Image	IP Base or IP Services
Operating Temperature	0 to 40°C
Operating Humidity	10 to 85% noncondensing