HTTP/1.1 401 Unauthorized
Content-Length: 0
WWW-Authenticate: Digest realm="DSLForum CPE Management", algorithm=MD5, qop=auth, stale=FALSE, nonce="c4b3393608ebdef66c31bbfd3419d469", opaque="5ccc069c403ebaf9f0171e9517f40e41"

HTTP/1.1 503 Service Unavailable
Content-Length: 0
Server: TR069 client TCP connection request Server
Connection: close

HTTP/1.1 401 Unauthorized
Connection: Keep-Alive
WWW-Authenticate: Digest realm="HuaweiHomeGateway",nonce="e86ded40fd8192e640c75b84f637a401", qop="auth", algorithm="MD5"
Content-Length: 0