Transcript Desktop Management with ZENworks for Desktops 3

Network Address Translation
External/
Internal/
OVERLOADING
In Overloading, each computer on the private network is
translated to the same IP address; that of the NAT external
interface, but with a different port number assigned.
1.
Private host generates an IP
packet that gets sent to the NAT
router. NAT removes the private
IP address from the packet and
puts the public IP address into
the packet.
2.
NAT appends a randomly
assigned port number to the
public IP Address.
3.
NAT stores the private IP
address and the port assigned in
a table for future reference.
4.
NAT forwards the packet to the
public network.
5.
When the host on the public
network responds, NAT uses the
table to see which private
address the packet should go to.
6.
NAT replaces the public address
with the private IP address of the
host that originated the
communication and forwards the
packet to the private network.
7.
When the session is completed,
the port is returned to the pool to
be reassigned as needed.
STATIC
In Static NAT the computer with an IP address of 10.0.0.2
will always translate to 209.5.1.2.
DYNAMIC
209.5.1.2
to
209.5.1.50
In dynamic NAT, any computer on the private network will
translate to an available address in the range from 209.5.1.2
to 209.5.1.50