Yealink technical note
Yealink 802.1X Authentication
A Yealink technical note for the Yealink SIP-T31, SIP-T31G and SIP-T31P (34 pages).
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About this technical note
About the 802.1X Authentication
A Yealink technical note for the Yealink SIP-T31, SIP-T31G and SIP-T31P (34 pages). This copy, last updated by Yealink on April 3, 2026, and you can read it right here or download it.
What’s inside
- About 802.1X
- Yealink IP Phones Compatible with 802.1X
- Configuring 802.1X Settings
- Configuring 802.1X Using Configuration Files
- For Old Auto Provisioning Mechanism
- For New Auto Provisioning Mechanism
- Configuring 802.1X via Web User Interface
- Configuring 802.1X via Phone User Interface
- 802.1X Authentication Process
- Sample Screenshots – Identity
- Sample Screenshots - Anonymous Identity
- Troubleshooting
- Why doesn’t the IP phone pass 802.1X authentication?
- Appendix A: Glossary
- Appendix B: 802.1X Authentication Process
- A Successful Authentication Using EAP-MD5 Protocol
- A Successful Authentication Using EAP-TLS Protocol
- A Successful Authentication Using EAP-PEAP/MSCHAPv2 Protocol
- A Successful Authentication Using EAP-TTLS/EAP-MSCHAPv2 Protocol
- A Successful Authentication Using EAP-PEAP/GTC Protocol
- A Successful Authentication Using EAP-TTLS/EAP-GTC Protocol
- A Successful Authentication Using EAP-FAST Protocol
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