My setup is as follows:
I have a 1&1 VDSL250 connection with DS-Lite. At the entry point, I want to install a modem directly (ZTE H186), which also establishes a link to the provider. On the Sophos firewall, I enter the PPPoE login credentials. According to the logs, it successfully establishes a connection and authenticates, but I don't receive an IP address, and the PPPoE uplink drops after a few seconds.
I suspect there’s something I still need to configure on the Sophos to get it working properly with DS-Lite, but I’m not exactly sure what. The Sophos device is an SG 115 Rev2 running the latest XG Home license.
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[edited by: Raphael Alganes at 9:43 AM (GMT -8) on 18 Dec 2024]