Nat Types; Table 171 Nat Mapping Types - ZyXEL Communications P-870HW-I Series User Manual

P-870HW-I1 User's Guide
Note: Port numbers do not change for One-to-One and Many One-to-One NAT
mapping types.
The following table summarizes these types.

Table 171 NAT Mapping Types

TYPE
One-to-One
Many-to-One (SUA/PAT)
Many-to-Many Overload
Many One-to-One
Server

NAT Types

This section discusses the following NAT types that may be implemented on a router in front
of the ZyXEL Device.
• Full Cone
• Restricted Cone
• Port Restricted Cone
• Symmetric
384
IP MAPPING
ILA1 IGA1
ILA1 IGA1
ILA2 IGA1
...
ILA1 IGA1
ILA2 IGA2
ILA3 IGA1
ILA4 IGA2
...
ILA1 IGA1
ILA2 IGA2
ILA3 IGA3
...
Server 1 IP IGA1
Server 2 IP IGA1
Server 3 IP IGA1
ABBREVIATION
1-1
M-1
M-M Ov
M-1-1
Server
Appendix D NAT