SDAA112 September   2025 AM625

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Use Case
  5. 2Platform and Products
    1. 2.1 Hardware
    2. 2.2 Software
  6. 3Methods
  7. 4Overview of Steps to Bring Up the Interface and Establish A Connection
  8. 5Troubleshooting
    1. 5.1 Power and Initialization First
    2. 5.2 Verify Network Before PPP
    3. 5.3 Test Manual Dial First
    4. 5.4 Timing When Dialing Up
    5. 5.5 Serial Communication
    6. 5.6 Chat Script
    7. 5.7 PPP Options
    8. 5.8 Signal Strength and Antenna Setup
    9. 5.9 Modem Reset
  9. 6Summary
  10. 7References

5.7 PPP Options

Enable full logging during troubleshooting by adding debug and nodetach to the peer file. To make sure operation is smooth, configure PPP to automatically set DNS and routing with usepeerdns and defaultroute.

Negotiation can be streamlined by disabling unused protocols, which reduces delays. Protocols that can be disabled include:

  • noipv6
  • nobsdcomp
  • nodeflate
  • novj

A full description of available options can be found in the PPP daemon documentation.