What Is The Difference Between Sua And Multi-Nat - ZyXEL Communications P-2602HWNLI Support Notes

Overload
Many-to-Many No
Overload
Server

What is the difference between SUA and Multi-NAT?

SUA (Single User Account) in previous ZyNOS versions is a NAT set with 2 rules, Many-to-One and Server.
The Prestige now has Full Feature NAT support to map global IP addresses to local IP addresses of clients or
servers. With multiple global IP addresses, multiple severs of the same type (e.g., FTP servers) are allowed on
the LAN for outside access. In previous ZyNOS versions that supported SUA 'visible' servers had to be of
different types. The Prestige supports NAT sets on a remote node basis. They are reusable, but only one set is
allowed for each remote node. The Prestige supports 2 sets since there is only one remote node. The default
SUA (Read Only) Set in menu 15.1 is a convenient, pre-configured, read only, Many-to-One mapping set,
sufficient for most purposes and helpful to people already familiar with SUA in previous ZyNOS versions.
What is BOOTP/DHCP?
BOOTP stands for Bootstrap Protocol. DHCP stands for Dynamic Host Configuration Protocol. Both are
mechanisms to dynamically assign an IP address for a TCP/IP client by the server. In this case, the Prestige
Internet Access Sharing Router is a BOOTP/DHCP server. Win95 and WinNT clients use DHCP to request an
internal IP address, while WFW and WinSock clients use BOOTP. TCP/IP clients may specify their own IP or
utilize BOOTP/DHCP to request an IP address.
What is DDNS?
The Dynamic DNS service allows you to alias a dynamic IP address to a static hostname, allowing your
computer to be more easily accessed from various locations on the Internet. To use the service, you must first
apply an account from several free Web servers such as WWW.DYNDNS.ORG.
Without DDNS, we always tell the users to use the WAN IP of the 312 to reach our internal server. It is
inconvenient for the users if this IP is dynamic. With DDNS supported by the Prestige, you apply a DNS name
ILA2<--->IGA2
ILA3<--->IGA1
ILA4<--->IGA2
...
ILA1<--->IGA1
ILA2<--->IGA2
ILA3<--->IGA3
ILA4<--->IGA4
...
Server 1 IP<--->IGA1
Server 2 IP<--->IGA1
All contents copyright (c) 2006 ZyXEL Communications Corporation.
P-2602HWNLI Support Notes
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