.DER = The DER extension is used for binary DER encoded certificates. These files may also bear the CER or the CRT extension. Proper English usage would be “I have a DER encoded certificate” not “I have a DER certificate”.
.PEM = The PEM extension is used for different types of X.509v3 files which contain ASCII (Base64) armored data prefixed with a “—– BEGIN …” line.
To complete the eap tls logic on the 7921 phone.
You should have a publicly known CA cert ( in some cases Misosoft CA your own which you distribute) installed in the 7921 Phone when you generate the CSR ( request ) from the phone which is generated combining the Public cert information. Now you take that request to the ROOT CA server and he signs you CSR and generates a CERT For the 7921 phone which is expertable. once the generated cert chain is downloaded, Export and install the signed cert for 7921 on the phone. The 7921 phone will not install the certificate if the CSR was issued by any unknown CA.
How does it know that ? , because you had installed or told the phone the root CA cert infomation which you used to generate the CSR so when you get the certified or signed cert from CA during installation will be able to decode it only if the CERT was signed by the CA it knows thus verifying that its the right Cert signed by its right CA authority. This is the beauty of it.
Table of Contents
Table of ContentsOverviewConnecting a Catalyst 9800 WLC to Cisco DNA Center ManuallyConnecting an AireOS WLC to Cisco DNA Center ManuallyCisco DNA Center Assurance Deployment Guide References
The purpose of this document...
Securing devices without 802.1X
PSK (Pre-Shared-Key) WLAN is widely used for consumer & enterprise IoT onboarding as most of IoT device doesn’t support 802.1X. While PSK WLAN provides an easy way to onboard IoT, it also introduces challenges as...
Due to the certificate expiration, any new Control and Provisioning of Wireless Access Points (CAPWAP) or Light Weight Access Point Protocol (LWAPP) connection will fail to establish. The main feature that is affected will be the Acce...
Where to download
Attached files on this post
Alternatively, cloud version (only summaries)
New implementation for the WLC Config Analyzer. it is a new re-write of the application, with clean up and improved checks
Support for IOS...