Lease, Lease 1375 – LevelOne GTL-2691 User Manual

Page 1375

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C

HAPTER

46

| DHCP Commands

DHCP Server

– 1375 –

C

OMMAND

M

ODE

DHCP Pool Configuration

U

SAGE

G

UIDELINES

◆

Host addresses must fall within the range specified for an existing

network pool.

◆

When a client request is received, the switch first checks for a network

address pool matching the gateway where the request originated (i.e.,

if the request was forwarded by a relay server). If there is no gateway

in the client request (i.e., the request was not forwarded by a relay

server), the switch searches for a network pool matching the interface

through which the client request was received. It then searches for a

manually configured host address that falls within the matching

network pool.

◆

When searching for a manual binding, the switch compares the client

identifier for DHCP clients, and then compares the hardware address for

DHCP or BOOTP clients.

◆

If no manual binding has been specified for a host entry with the

client-

identifier

or

hardware-address

commands, then the switch will assign

an address from the matching network pool.

◆

If the mask is unspecified, DHCP examines its address pools. If no

mask is found in the pool database, the Class A, B, or C natural mask is

used (see

page 1377

). This command is valid for manual bindings only.

◆

The no host command only clears the address from the DHCP server

database. It does not cancel the IP address currently in use by the

host.

E

XAMPLE

Console(config-dhcp)#host 10.1.0.21 255.255.255.0

Console(config-dhcp)#

R

ELATED

C

OMMANDS

client-identifier (1371)

hardware-address (1374)

lease

This command configures the duration that an IP address is assigned to a

DHCP client. Use the no form to restore the default value.

S

YNTAX

lease {days [hours] [minutes] | infinite}
no lease

days - Specifies the duration of the lease in numbers of days.

(Range: 0-364)

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