Chapter 4 Troubleshooting
47
For example, you can enter PING command in MS-DOS prompt (or after choosing START_
RUN from the Start menu) as below in sequence.
PC to Router ( e.g. ping 192.168.1.254 )
If there is no reply from router, please verify the PC, cables, HUB/Switch and router.
PC to external station with IP address (e.g. ping 168.95.192.1 )
If there is no reply from external station, please verify the router, cables, DSL/Cable modem,
and connection protocols.
PC to external station with domain name (e.g. ping
www.yahoo.com
T)
If there is no reply from external station, please verify the DNS setting in PC or router.
How can I check the active IP settings for my WAN port?
You may use the Web-based GUI to check the WAN port status,
Status -> System Log
, and
then you will see whole process inside the router including the WAN port IP address and related
information.
Where can I find the WAN port’s MAC address?
When you need this WAN port MAC address, you can refer the MAC label in the enclosure. But
the easiest way is to use Web-based GUI to check it. Please enter
Status -> Device Info
or
WAN -> Obtain an IP address automatically
, then you will see the MAC address for WAN
port. Usually, some cable operators need this information for registration.
How can I explore a local server to be visible to outside users?
When being a natural Internet firewall (NAT + Advanced Firewall), BIPAC 6600 protects your
network from being accessed by outside users. There is only one IP address visible to outside
users who are not able to access the specific server in your LAN. When you need to allow
outside users to access local servers, e.g. Web server, FTP server, E-mail server or News
server. You can set up a local server with specific port number that stands for the service, e.g.
Web (80), FTP (21), Telnet (23), SMTP (25), POP3 (110), DNS (53), ECHO (7), NNTP (119).
Details are described in
section 3.4.3.5 “Virtual Server”
. When an incoming access request to
the router for specified port is received, it will be forwarded to the corresponding internal server.