Serioux SRX-WR150, Руководство пользователя

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Appendix A: Common Troubleshooting Methods
Appendix A provides some methods to resolve problems you may meet when you install the router
and some steps to take to analyze the problems using diagnostic tools.
If you cannot resolve a problem, please contact the Technical Support department.
1.Problem : Power indicator does not light.
Solution: Check that the power supply is working and that you are using the proper power adapter.
2.Problem : WAN indicator does not light when a network cable is plugged in.
Solution: Check that the network cable has been inserted correctly into the WAN port.
3.Problem : LAN indicator does not light when a network cable is plugged in.
Solution: Check that the power connector and Internet cables are ok.
Check the connection from the cable to the port.
Check whether the Ethernet card is installed correctly in the PC.
4.Problem : Failed to visit the WEB setting page.
Solution: Ensure that your browser (IE6+ or Firefox 1.5+) is the latest version and that you have Java
installed on your computer.
5.Problem : Cannot save the setting that I altered on the web page.
Solution: Ensure that after you complete your configuration changes on the interface that you click on
the Apply button and that you then reload the system.
6.Problem : What should a user do if he knows nothing about the rout
er’s firewall when he enables the
firewall function?
Solution: A router
’s firewall has strict rules, so a common user should disable the firewall. Only a user
who is familiar with setting a router should consider setting a firewall. Before setting the rules, please
plan all of the Internet activities that the LAN users need.
Appendix B: Technical Terms
1.DHCP (Dynamic Host Configuration Protocol)
It dynamically allocates IP address, subnet mask, and gateway for a host in a network.
2.DHCP Server (Dynamic Host Configuration Protocol Server)
It runs DHCP to allocate an IP address for a DHCP client.
3.DNS (Domain Name Server)
It resolves a domain name (like www.yahoo.com ) into a corresponding IP address (like
216.115.108.243). A DNS message is distributed in the DNS server for the entire Internet, so the DNS
server will check the domain name that we send a request to and search for the corresponding IP
address when we visit a website. If this DNS server can
’t find the IP address, it will send the request to a
superior DNS server to continue searching for an IP address.
4.FTP (File Transfer Protocol)
A protocol that describes how to transfer files between each computer in the network.
5.HTTP (Hypertext Transfer Protocol)
It is a standard protocol for transmission of a web page.
6.ICMP (Internet Control Message Protocol)
It is used to send an error message and some important network information (like ping
command).
7.IEEE (Institute of Electrical and Electronics Engineers)
It is a technical institution that specially defines international standards.
8.ISP (Internet Service Provider )
It is the Internet accessing service.
9.LAN (Local Area Network)
It is a home network or an intranet (internal private network of a small or medium -sized business).
10.MAC (Media Access Control)
The MAC address is the hardware (permanent physical) address of a device that is specified by the
manufacturer, connected to a shared network medium. It is composed of 6 pairs of hexadecimal
characters (like 00-0F-E2-80-65-25). Each network component has a globally unique MAC address.