HTTP/1.1 404 Not Found
Content-Type: text/xml; charset=utf-8
Content-Length: 0
Connection: close

HTTP/1.0 401 Unauthorized
WWW-Authenticate: Digest realm="cpe@zte.com", qop="auth", nonce="7ba8dd22302d6a675b1b1bf4695709fc", opaque="T3BhcXVlIHN0cmluZyBmb3IgQUNTIEF1dGhlbnRpY2F0aW9u", Algorithm="MD5"
Connection: close
Content-Length: 0
Content-Type: text/xml; charset="utf-8"