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Billion 800VGT Router
Configuring
L2TP
VPN
in
the
Head
Office
The
IP
address
192.168.1.200
will
be
assigned
to
the
router
located
in
the
branch
office.
Please
make
sure
this
IP
is
not
used
in
the
head
office
LAN.
1
2
3
4
5
6
7
Item
Function
Description
1
Connection
Name
HeadOffice
Given
name
of
the
L2TP
connection
Dial
in
select
Dial
in
2
Private
IP
Address
Assigned
to
Dialing
User
192.168.1.200
The
IP
address
that
will
get
assigned
to
branch
offices
network.
Peer
Network
IP
192.168.0.0
Branch
office
network
3
Netmask
255.255.255.0
Username
username
4
Password
123456
username
&
password
that
are
used
to
authenticate
the
branch
office
network
5
Auth.Type
Chap(Auto)
Keep
these
settings
set
to
the
default
values
in
most
cases.
6
Idle
Timeout
0
The
connection
will
be
disconnected
when
there
is
no
traffic
over
it
for
this
predefined
period
of
time.
If
Idle
time
is
set
to
0,
it
means
that
the
connection
will
never
time
out.
IPSec
Select
Enable
to
enhance
your
L2TP
VPN
security..
Authentication
MD5
Encryption
3DES
Perfect
Forward
Secrecy
None
7
Pre-shared
Key
12345678
Both
sides
of
the
tunnel
should
use
the
same
settings
for
these
options.
97
Chapter
4:
Configuration