anlan@anlan:/etc/ppp$ cat pppoe-server-options # PPP options for the PPPoE server # SPDX-License-Identifier: GPL-2.0-or-later require-chap auth logfile /var/log/pppd.log ms-dns 8.8.8.8 ms-dns 8.8.4.4 anlan@anlan:/etc/ppp$ sudo cat chap-secrets # Secrets for authentication using CHAP...