Monitor Authenticating proxy

Thanks for the reply Steve.

Can you please explain in details, I am getting below http response from server,

< HTTP/1.1 407 Proxy Authentication Required

< Proxy-Authenticate: NEGOTIATE

< Proxy-Authenticate: NTLM

< Proxy-Authenticate: BASIC realm="IWA_Direct"

< Cache-Control: no-cache

< Pragma: no-cache

< Content-Type: text/html; charset=utf-8

< Proxy-Connection: close

< Set-Cookie: BCSI-CS-7d06572a9586553b=2; Path=/

< Connection: close

< Content-Length: 3500

Also Please confirm do I need to put Username and password also ?

Kunal B