EAP termination
a shows the basic 802.1X authentication procedure in EAP termination mode, assuming that CHAP authentication is used.
a.802.1X authentication procedure in EAP termination mode
In EAP termination mode, it is the network access device rather than the authentication server generates an MD5 challenge for password encryption (see Step 4). The network access device then sends the MD5 challenge together with the username and encrypted password in a standard RADIUS packet to the RADIUS server.
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