User`s manual

P-660 Series Support Notes

a. Use the Web Configurator.

b. Use the RESET button on the rear panel of P-660 to reset the router. After

the router is reset, the LAN IP address and the SMT password will be reset to

'192.168.1.1' and '1234'. So now you can reach the router through console

port or telnet again.

c. Upload the default ROMFILE via console port to reset the SMT to factory

default. After uploading ROMFILE, the default system password is '1234'.

10. How to use the Reset button?

a. Turn your Prestige off and then on. Make sure the SYS led is on (not blinking)

b. Press the RESET button for five seconds and then release it. If the SYS LED

begins to blink, the defaults have been restored and the Prestige restarts.

11.What is SUA? When should I use SUA?

SUA (Single User Account) is a unique feature supported by Prestige router which

allows multiple people to access Internet concurrently for the cost of a single user

account.

When Prestige acting as SUA receives a packet from a local client destined for the

outside Internet, it replaces the source address in the IP packet header with its own

address and the source port in the TCP or UDP header with another value chosen out

of a local pool. It then recomputes the appropriate header checksums and forwards the

packet to the Internet as if it is originated from Prestige using the IP address assigned

by ISP. When reply packets from the external Internet are received by Prestige, the

original IP source address and TCP/UDP source port numbers are written into the

destination fields of the packet (since it is now moving in the opposite direction), the

checksums are recomputed, and the packet is delivered to its true destination. This is

because SUA keeps a table of the IP addresses and port numbers of the local systems

currently using it.

12. 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 P-660 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 P-660 supports NAT sets on a remote node

basis. They are reusable, but only one set is allowed for each remote node. The P-660

supports 8 sets since there are 8 remote node. The default SUA (Read Only) Set in

menu 15.1.255 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.