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for you. Please read the firmware release note carefully when you want to
upload a new firmware.
3. How do I restore P-660RU-Tx configurations by using TFTP client
program via LAN?
a.
Use the TELNET client program in your PC to login to your
P-660RU-Tx.
b.
Enter CI command 'sys stdio 0' disable Stdio idle timeout
c.
To backup the P-660RU-Tx configurations, use TFTP client program to
get file "rom-0" from the P-660RU-Tx.
d.
To restore the P-660RU-Tx configurations, use the TFTP client
program to put your configuration in file rom-0 in the P-660RU-Tx.
4. What should I do if I forget the system password?
In case you forget the system password, you can erase the current
configuration and restore factory defaults this way:
Use the RESET button on the rear panel of P-660RU-Tx to reset the router.
After the router is reset, the LAN IP address will be reset to '192.168.1.1', the
password will be reset to "1234".
5. How to use the Reset button?
a.
Turn your P-660RU-Tx on. Make sure the POWER led is on (not
blinking)
b.
Press the RESET button for ten seconds and then release it. If the
POWER LED begins to blink, the default configuration has been
restored and the P-660RU-Tx restarts.
6. What is SUA? When should I use SUA?
SUA (Single User Account) is a unique feature supported by P-660RU-Tx router
which allows multiple people to access Internet concurrently for the cost of a
single user account.
When P-660RU-Tx 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 recomputed the appropriate header
checksums and forwards the packet to the Internet as if it is originated from
P-660RU-Tx using the IP address assigned by ISP. When reply packets from
the external Internet are received by P-660RU-Tx, the original IP source
address and TCP/UDP source port numbers are written into
All contents copyright © 2010 ZyXEL Communications Corporation.
P-660RU-Tx Series Support Note s
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