ZyXEL Communications 2602HWL-DXA

Prestige 2602HWL-DxA Support Notes

NAT Type IP Mapping

One-to-One ILA1<--->IGA1

Many-to-One

(SUA/PAT)

ILA1<--->IGA1

ILA2<--->IGA1

...

Many-to-Many

Overload

ILA1<--->IGA1

ILA2<--->IGA2

ILA3<--->IGA1

ILA4<--->IGA2

...

Many-to-Many No

Overload

ILA1<--->IGA1

ILA2<--->IGA2

ILA3<--->IGA3

ILA4<--->IGA4

...

Server Server 1 IP<--->IGA1

Server 2 IP<--->IGA1

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 o f 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 nod e basis. They are reusable, but only one set is

allowed for each remote node. The Prestige supports 2 sets sinc e 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 ar e

mechanisms to dynamically assign an IP address for a TCP/IP cli ent 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.