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Billion 800VGT Router
PPTP
Connection
-
LAN
to
LAN
Connection
Name:
User-defined
description
of
the
connection.
Type:
Select
Dial
Out
if
you
want
your
router
to
operate
as
a
client
(connecting
to
a
remote
VPN
server,
e.g.
your
office
server)
or
select
Dial
In
operates
as
a
VPN
server.
When
configuring
your
router
as
a
Client,
enter
the
remote
Server
IP
Address
(or
Hostname)
you
wish
to
connection
to.
When
configuring
your
router
as
a
server,
enter
the
Private
IP
Address
Assigned
to
Dial
in
User
address.
Peer
Network
IP:
Enter
Peer
network
IP
address.
Netmask:
Enter
the
subnet
mask
of
peer
network
based
on
the
Peer
Network
IP
setting.
Username:
If
you
are
a
Dial-Out
user
(client),
enter
the
username
provided
by
your
Host.
If
you
are
a
Dial-In
user
(server),
enter
your
own
username.
Password:
If
you
are
a
Dial-Out
user
(client),
enter
the
password
provided
by
your
Host.
If
you
are
a
Dial-In
user
(server),
enter
your
own
password.
PPP
Authentication
Type:
Default
is
Auto.
Retain
this
setting
if
you
want
the
router
to
determine
the
authentication
type
to
use,
or
else
manually
specify
CHAP
(Challenge
Handshake
Authentication
Protocol)
or
PAP
(Password
Authentication
Protocol)
if
you
know
which
type
the
server
is
using
(when
acting
as
a
client),
When
acting
as
a
server,
select
the
authentication
type
you
want
clients
connecting
to
you
to
use.
When
using
PAP,
the
password
is
sent
unencrypted,
whilst
CHAP
encrypts
the
password
before
sending,
and
also
allows
for
challenges
at
different
periods
to
ensure
that
the
original
client
has
not
been
replaced
by
an
intruder.
Data
Encryption:
Data
sent
over
the
VPN
connection
can
be
encrypted
by
an
MPPE
algorithm.
Default is
Auto,
so
that
this
setting
is
negotiated
when
establishing
a
connection.
Alternatively,
you
can
manually
Enable
or
Disable
encryption.
Key
Length:
The
data
can
be
encrypted
by
MPPE
algorithm
with
40
bits
or
128
bits.
Default
is
Auto
,
which
negotiates
the
that
is
used
when
establishing
a
connection.
128
bit
keys
provide
stronger
encryption
than
40
bit
keys.
Mode:
You
may
select
Stateful
or
Stateless
mode.
The
key
will
be
changed
every
256
packets
when
you
select
Stateful
mode.
If
you
select
Stateless
mode,
the
key
will
be
changed
in
each
packet.
Idle
Time
:
Auto-disconnects
the
VPN
connection
when
there
is
no
activity
on
the
connection
for
a
predetermined
period
of
time.
0
means
this
connection
is
always
on.
Click
Apply
button
to
apply
your
changes.
74
Chapter
4:
Configuration