HTTP/1.0 401 Unauthorized
WWW-Authenticate: Digest realm="cpe@zte.com", qop="auth", nonce="bf0c1055327c42d963c4bb7ee4eb9769", opaque="T3BhcXVlIHN0cmluZyBmb3IgQUNTIEF1dGhlbnRpY2F0aW9u", Algorithm="MD5"
Connection: close
Content-Length: 0
Content-Type: text/xml; charset="utf-8"