Allied-telesis AR400 Series Router Manual de usuario descargar pdf (Pagina 119)

Chapter 7

Maintenance and Troubleshooting

This Chapter

If you are familiar with networking and router operations, you may be able to

diagnose and solve some problems yourself.

This chapter gives tips on how to:

■ start your router (see “How the Router Starts Up” on page 120).

■ avoid problems (see “How to Avoid Problems” on page 121).

■ reconfigure your router if you accidentally clear the FLASH memory (see

“What To Do if You Clear FLASH Memory Completely” on page 123).

■ troubleshoot ISDN connections (see “What To Do if ISDN Fails to Connect”

on page 124).

■ troubleshoot a PPP link that disconnects (see “What To Do if the PPP Link

Disconnects Regularly” on page 124).

■ reset passwords if they are lost (see “What To Do if Passwords are Lost” on

page 125).

■ gather information from your router that support personnel need to

provide accurate support tailored to your situation (see “Getting the Most

Out of Technical Support” on page 125).

■ restart the router at any time with no configuration (see “Resetting Router

Defaults” on page 126).

■ check whether there is a connection between the router and another

routing interface in the network (see “Checking Connections Using PING” on

page 126).

■ troubleshoot if no routes exists to the remote router (see “Troubleshooting IP

Configurations” on page 127 and “Troubleshooting IPX Configurations” on

page 129).

■ troubleshoot problems with DHCP IP addresses if the router is acting as a

client or as a server (see “Troubleshooting DHCP IP Addresses” on page 128)

■ examine the route that packets pass between two systems running the IP

protocol (see “Using Trace Route for IP Traffic” on page 131).

Information gained from the LEDs on the front panel of the router is described

in the AR Series Router Hardware Reference.

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Allied-telesis AR400 Series Router Manual de usuario Pagina 119