RAM-6021 Wired Router
52
Network Tab
Select
Protocol:
Choose
the
protocol
type
for
this
port’s
data.
Options
are
TCP
and
UDP.
Source
Subnets
via
Whitelist:
Select
a
whitelist
name
from
the
list
of
names
available
in
the
drop
‐
down
list
box
pro
‐
vided.
Whitelists
may
be
viewed/defined
in
the
via
the
Network/Firewall/ACL
Rules
screen.
•
Click
on
the
Finish
button.
You
will
be
returned
to
the
Firewall
Port
Forwarding
dialog
window
and
the
Host
Redi
‐
rect
(Port
Forwarding)
Rules
table
will
now
be
populated
with
the
recently
entered
data.
•
To
delete
an
existing
rule,
select
it
in
the
table
and
click
on
the
Delete
button.
To
edit
an
existing
rule,
select
it
in
the
table
and
click
on
the
Edit
button.
•
Click
on
the
“Save”
button
for
changes
to
be
saved
without
activating
the
interface
until
you
reboot
the
unit,
the
“Apply”
button
will
save
your
settings
and
apply
them
immediately.
To
revert
to
the
previous
defaults,
click
on
the
“Revert”
button.
2.4.3
Tunneling
The
Tunneling
menu
is
divided
into
two
(2)
sub
‐
sections:
GRE
Tunnels
and
IPSEC.
2.4.3.1
GRE
Tunnels
(Generic
Routing
Encapsulation)
The
GRE
Tunnels
menu
item
is
used
to
configure
a
GRE
Tunnel.
GRE
is
a
tunneling
protocol
that
was
originally
developed
by
Cisco.
It
can
do
a
few
more
things
than
IP
‐
in
‐
IP
tunnelling.
For
example,
you
can
also
transport
multicast
traffic
and
IPv6
through
a
GRE
tunnel.
•
Click
on
the
GRE
Tunnels
menu
item
and
the
following
dialog
window
will
appear:
To
add
a
GRE
Tunnel: