12-30
User
Guide

for

the

Cisco

Application

Networking

Manager

5.2
OL-26572-01
Chapter
12






Configuring

Network

Access
Configuring
Global

IP

DHCP
Note
Fields
and
information
related

to

IPv6

require

ACE

module

and

ACE

appliance

software

Version

A5(1.0)
or
later.
Procedure
Step
1
Choose
Config
>

Devices

>

context

>

Network

>

Global

IP

DHCP.
The
Global

IP

DHCP

configuration

table

appears.
Step
2
From
the

Global

IP

DHCP

configuration

table,

in

the
Enable

DHCP

Relay

For

The

Context

field,

click
IPv4,
IPv6,

or

both

to

enable

DHCP

relay

for

the

context

and

all

interfaces

associated

with

this

context.
For
ACE

module

and

ACE

appliance

software

versions

earlier

than

A5(1.0),

this

field

does

not

include
the
IP

version

number

and

i

s

for

IPv4

only.
Step
3
In
the

Relay

Agent

Information

Reforwarding

Policy

field,
choose
a

relay

agent

information
forwarding
policy:

•
N/A—Specifies
to

not
configure
the
DHCP

relay

to

identify

what

is

to

be

performed
if
a

forwarded
message
already

contains

relay

information.

•
Ke
ep

—Specifies

that

existing
information
is
left

unchanged

on
the
DHCP

relay

agent.

•
Replace—Specifies
that

existing
information
is
overwritten

on
the
DHCP

relay

agent.
Step
4
In
the

IP

DHCP

Server

field,

choose

the

IP

DHCP

server

to

which

the

DHCP

relay

agent

is

to

forward
client
requests.
Step
5
In
the
IPv6

Forward
Interface
VLAN

field,
you
can

optionally

enter
the

VLAN

interface

number

that
you
configured

in

the

IPv6

DHCP

Forward

Interface

VLAN

field

on

the

interface

where

the

multicast
DHCP
relay

message

is

sent.
This
field

appears

only

for

ACE

module

and

ACE

appliance

software

Version

A5(1.0)

or

later.
Step
6
In
the

IPv6

DHCP

server,

specify

one

or

more

IP

DHCP

servers

and

IPv6

addresses

to

which

the

DHCP
relay
agent

is

to

forward

client

requests.
This
field

appears

only

for

ACE

module

and

ACE

appliance

software

Version

A5(1.0)

or

later.
Step
7
Do
one

of

the

following:

•
Click
Deploy
Now

to
immediately
deploy

this
configuration

on

the

ACE

and

save

your

entries

to
the
running-configuration

and

startup-configuration

files.

This

option

appears

for

virtual

contexts.

•
Click
Cancel
to
exit

this

procedure

without
saving
your

entries

and

to

return

to

the
previous
table.

•
Click
Next
t

o
deploy
your

entries

and

to
add
another

DHCP

relay

entry.