System Administration Guide: Resource Management and Network Services

Solving PPP Problems (Task Map)

Use the following task map to quickly access advice and solutions for common PPP problems.

Table 35-1 Task Map for Troubleshooting PPP


Task	Definition	For Instructions
Obtain diagnostic information about the PPP link	Use PPP diagnostic tools to get output for troubleshooting	"How to Obtain Diagnostic Information From pppd"
Obtain debugging information for the PPP link	Use the `pppd debug` command to generate output for troubleshooting	"How to Turn on PPP Debugging"
Troubleshoot general problems with the network layer	Identify and fix PPP problems that are network-related by using a series of checks	"How to Diagnose Network Problems"
Troubleshoot general communications problems	Identify and fix communications problems that affect the PPP link	"How to Diagnose and Fix Communications Problems"
Troubleshoot configuration problems	Identify and fix problems in the PPP configuration files	"How to Diagnose Problems With the PPP Configuration"
Troubleshoot modem-related problems	Identify and fix modem problems	"How to Diagnose Modem Problems"
Troubleshoot chat script-related problems	Identify and fix chat script problems on a dial-out machine	"How to Obtain Debugging Information for Chat Scripts"
Troubleshoot serial line speed problems	Identify and fix line speed problems on a dial-in server	"How to Diagnose and Fix Serial Line Speed Problems"
Troubleshoot common problems for leased lines	Identify and fix performance problems on a leased line	"Fixing Leased-Line Problems"
Troubleshoot problems related to authentication	Identify and fix problems related to the authentication databases	"Diagnosing and Fixing Authentication Problems"
Troubleshoot problem areas for PPPoE	Use PPP diagnostic tools to obtain output for identifying and fixing PPPoE problems	"How to Obtain Diagnostic Information for PPPoE"