Table 11-2 Nat Mapping Types - ZyXEL Communications Intelligent Broadband Sharing Gateway P-324 User Manual

3. Many to Many Overload: In Many-to-Many Overload mode, the Prestige maps the multiple local IP
addresses to shared global IP addresses.
4. Many One-to-One: In Many One-to-One mode, the Prestige maps the each local IP addresses 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.
Port numbers do not change for One-to-One and Many One-to-One NAT mapping
When you select One-to-One or Many- One-to-One NAT mapping, the firewall
automatically allows traffic through to the LAN computers you specify in the One-
to-One or Many- One-to-One mapping rules. This means that these LAN computers
The following table summarizes these types.
TYPE
One-to-One
Many-to-One (SUA/PAT)
Many-to-Many Overload
NAT
Prestige 324 Intelligent Broadband Sharing Gateway
types.
do not have firewall protection.

Table 11-2 NAT Mapping Types

IP MAPPING
ILA1 IGA1
ILA1 IGA1
ILA2 IGA1
...
ILA1 IGA1
ILA2 IGA2
ILA3 IGA1
ILA4 IGA2
...
SMT ABBREVIATION
1:1
M:1
M:M Ov
11-5