Using the files from https://github.com/jaysoffian/eap_proxy these are the instructions to get a fully functional bypass using a EdgeRouter Lite and AT&T router ...
EdgeRouter X (ER-X/ER-X-SFP) mipsel Yes Tested with EdgeOS 2.0.9, requires EdgeOS 2.x EdgeRouter (ER-Lite/ER-4 etc) mips No Requires EdgeOS 2.x configure set interfaces yggdrasil tunX set interfaces ...