PPTP

PPTP:
  Firmware: 1
  Hostname: 37
  Vendor: MikroTik

MikroTik bandwidth-test server

\x01\x00\x00\x00

HTTP/1.1 407 OK
Date: Wed, 20 Jan 2021 05:55:41 GMT
Content-Type: text/plain; charset=utf-8
Content-Length: 33
Connection: keep-alive

please add white ip 224.208.160.97