User's Manual

Chapter 4
Advanced Configuration
7
Wireless-N ADSL2+ Gateway
Internet IP A
dd
ress Enter t
h
e Gateway’s IP a
dd
ress, as
seen
f
rom the Internet.
Su
b
net Mas
k
Enter t
h
e Gateway’s Su
b
net Mas
k
, as seen
f
rom the Internet (including your ISP).
De
f
ault Gatewa
y
Enter the IP address o
f
the ISP server
.
Pr
i
mary
(
Req
u
i
re
d
) an
d
Secon
d
ary (Opt
i
ona
l)
DN
S
Enter t
h
e DNS (Domain Name System) server IP
a
dd
ress(es) provi
d
e
d
b
y your ISP. At
l
east one is require
d
.
Bri
d
ge
d
Mo
d
e On
ly
I
f
you are using your Gateway as a bridge, which makes
t
h
e Gateway act
l
i
k
e a stan
d
-a
l
one mo
d
em, se
l
ect
Br
i
d
g
e
Mo
d
e On
ly
. A
ll
NAT an
d
routing settings are
d
isa
bl
e
d
in
t
h
is mo
d
e
.
Internet Connection Type > Bri
d
ge
d
Mo
d
e On
l
y
Optiona
l
Setting
s
Some o
f
these settings may be required by your ISP. Veri
f
y
with your ISP be
f
ore making any changes
.
Optiona
l
Settings
Host Name an
d
Dom
a
i
n
N
am
e
These
f
ields allow you
to supply a host and domain name
f
or the Gateway.
Some ISPs, usua
ll
y ca
bl
e ISPs, require t
h
ese names as
identi
f
ication. You may have to check with your ISP to see
i
f
your broadband Internet service has been con
f
igured
wit
h
a
h
ost an
d
d
omain name. In most cases,
l
eaving t
h
ese
f
ields blank will work.
MTU
MTU is the Maximum Transmission Unit. It speci
f
ies
the largest packet size permitted
f
or Internet transmission.
Se
l
ect Manua
l
i
f
you want to manually enter the largest
pac
k
et size t
h
at is transmitte
d
. To
h
ave t
h
e Gateway se
l
ect
the best MTU
f
or your Internet connection, keep the
de
f
ault
,
A
ut
o
.
S
i
z
e
W
h
en Manua
l
is se
l
ecte
d
in t
h
e
MTU
field, this option
U
is ena
bl
e
d
. Leave t
h
is va
l
ue in t
h
e 1200 to 1500 range. T
h
e
de
f
ault, MTU is con
f
igured automatically
.
Networ
k
Setu
p
T
h
e Networ
k
Setup section c
h
anges t
h
e settings on t
h
e
networ
k
connecte
d
to t
h
e Gateway’s Et
h
ernet ports.
Wireless setup is per
f
ormed through the Wireless tab.
G
ateway I
P
The values
f
or the Gateway’s Local IP Address and Subnet
Mask are shown here. In most cases, keeping the de
f
ault
va
l
ues wi
ll
wor
k.
G
ateway I
P
Loca
l
IP A
dd
res
s
The de
f
ault value is
1
92.
1
6
8.
1
.
1
.
Su
b
net Mas
k
The de
f
ault value is
2
55
.
2
55
.
2
55
.
0
.
Networ
k
A
dd
ress Server Settings
(
DHCP
)
The settings allow you to con
f
igure the Gateway’s Dynamic
Host Con
f
iguration Protocol (DHCP) server
f
unction. The
Gateway can be used as a DHCP server
f
or your network.
A DHCP server automatica
ll
y assigns an IP a
dd
ress to eac
h
computer on your network. I
f
you choose to enable the
Gateway’s DHCP server option, ma
k
e sure t
h
ere is no
ot
h
er DHCP server on your networ
k
.
Networ
k
A
dd
ress Server Settings (DHCP)
DH
C
P
S
erver A Dynamic Host Con
f
iguration Protocol
(DHCP) server automatica
ll
y assigns an IP a
dd
ress to eac
h
computer on your network
f
or you. Unless you already
have one, Linksys recommends that you keep the de
f
ault,
Ena
ble
. You can a
l
so use t
h
e Gateway in DHCP Re
l
ay
mode. (This setting is not available
f
or all encapsulation
types.
)
DHCP Re
l
ay Server I
P
Enter t
h
e DHCP server IP a
dd
ress
to relay DHCP requests
f
rom the local network when the
Gateway is in DHCP Re
l
ay mo
d
e
.
S
tar
t
i
ng IP A
dd
res
s
Enter a value
f
or the DHCP server
to start wit
h
w
h
en issuing IP a
dd
resses. Because t
h
e
Gateway’s de
f
ault IP address is 192.168.1.1, the Starting IP
A
dd
ress must
b
e 192.168.1.2 or greater,
b
ut sma
ll
er t
h
an
192.168.1.253. The de
f
ault is
1
92.
1
6
8.
1
.
1
00
.
M
a
x
i
mum Number o
f
DHCP Users
E
nter t
h
e maximum
number o
f
users (network devices) that can obtain an IP
a
dd
ress. T
h
e num
b
er wi
ll
vary
d
epen
d
ing on t
h
e starting