ZyXEL P-660HN-T1A Support Guide - Page 60

Using Multiple Global IP addresses for clients and servers, One-to-One, Many-to-One, Server Set

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below: P-660HN Series Support Notes (3) Using Multiple Global IP addresses for clients and servers (One-to-One, Many-to-One, Server Set mapping types are used) In this case we have 3 IGAs from the ISP. We have two very busy internal FTP servers and also an internal general server for the web and mail. In this case, we want to assign the 3 IGAs by the following way using 4 NAT rules.  Rule 1 (One-to-One type) to map the FTP Server 1 with ILA1 (192.168.1.10) to IGA1 (200.0.0.1).  Rule 2 (One-to-One type) to map the FTP Server 2 with ILA2 (192.168.1.11) to IGA2 (200.0.0.2).  Rule 3 (Many-to-One type) to map the other clients to IGA3 (200.0.0.3).  Rule 4 (Server type) to map a web server and mail server with ILA3 (192.168.1.20) to IGA3. Type Server allows us to specify multiple servers, of different types, to other machines behind NAT on the LAN. 60 All contents copyright © 2010 ZyXEL Communications Corporation.

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P-660HN Series Support Notes
60
All contents copyright © 2010 ZyXEL Communications Corporation.
below:
(3) Using Multiple Global IP addresses for clients and servers
(One-to-One, Many-to-One, Server Set mapping types are used)
In this case we have 3 IGAs from the ISP. We have two very busy internal FTP
servers and also an internal general server for the web and mail. In this case,
we want to assign the 3 IGAs by the following way using 4 NAT rules.
Rule 1 (One-to-One type) to map the FTP Server 1 with ILA1
(192.168.1.10) to IGA1 (200.0.0.1).
Rule 2 (One-to-One type) to map the FTP Server 2 with ILA2
(192.168.1.11) to IGA2 (200.0.0.2).
Rule 3 (Many-to-One type) to map the other clients to IGA3 (200.0.0.3).
Rule 4 (Server type) to map a web server and mail server with ILA3
(192.168.1.20) to IGA3. Type
Server
allows us to specify multiple
servers, of different types, to other machines behind NAT on the LAN.