Prestige 650H-E
15
4.4 Test Your Internet Connection
Launch your web browser and navigate to
. Internet access is just the beginning.
Refer to the
User’s Guide
for more detailed information on the complete range of Prestige features.
If you cannot access the Internet, open the web configurator again to confirm that the Internet
settings you configured in the Wizard Setup are correct.
5 Advanced Configuration
This section shows how to configure some of the advanced features of the Prestige.
5.1 Network Address Translation Overview
NAT (Network Address Translation - NAT, RFC 1631) is the translation of the IP address of a host
in a packet. For example, the source address of an outgoing packet, used within one network is
changed to a different IP address known within another network.
In the simplest form, NAT changes the source IP address in a packet received from a subscriber (the
inside local address) to another (the inside global address) before forwarding the packet to the WAN
side. When the response comes back, NAT translates the destination address (the inside global
address) back to the inside local address before forwarding it to the original inside host. Note that
the IP address (either local or global) of an outside host is never changed.
NAT supports five types of IP/port mapping. They are:
1.
One-to-One
: One-to-one mode maps one local IP address to one global IP address. Note
that port numbers do not change for One-to-one NAT mapping type.
2.
Many-to-One
: Many-to-One mode maps multiple local IP addresses to one global IP
address.
3.
Many-to-Many Overload
: Many-to-Many Overload mode maps multiple local IP
addresses to shared global IP addresses.
4.
Many-to-Many No Overload
: Many-to-Many No Overload mode maps each local IP
address to unique global IP addresses.
5.
Server
: This type allows you to specify inside servers of different services behind the NAT
to be accessible to the outside world.
SUA (Single User Account) is a ZyNOS implementation of a subset of NAT that supports two types
of mapping,
Many-to-One
and
Server
. The Prestige also supports
Full Feature
NAT to map
multiple global IP addresses to multiple private LAN IP addresses of clients or servers using
mapping types.