Resolve 127.0.0.1:
  -> 127.0.0.1
cntlm: Proxy listening on 127.0.0.1:53124
cntlm: Workstation name used: purcell
Password:
cntlm: Using proxy proxy.swmed.edu:3128
cntlm: Resolving proxy proxy.swmed.edu...
Config profile  1/4... Resolve proxy.swmed.edu:
  -> 129.112.115.42
     129.112.115.43
     129.112.115.40
     129.112.115.41
NTLM Request:
	   Domain:
	 Hostname: purcell
	    Flags: 0xA208B205

Sending PROXY auth request...
Proxy-Connection               => keep-alive
Host                           => www.google.com
Proxy-Authorization            => NTLM TlRMTVNTUAABAAAABbIIogAAAAAnAAAABwAHACAAAABQVVJDRUxM
Content-Length                 => 0

Reading PROXY auth response...
HEAD: HTTP/1.1 302 authenticationrequired
Via                            => 1.1 129.112.115.42 (McAfee Web Gateway 7.4.2.1.0.17593)
Date                           => Mon, 23 Jun 2014 17:17:48 GMT
Location                       => https://m-proxy3.swmed.edu:10000/mwg-internal/de5fs23hu73ds/plugin?target=Auth&reason=Auth&ClientID=3904493130&ttl=43200&url=aHR0cDovL3d3dy5nb29nbGUuY29t&rnd=1403543868
Content-Type                   => text/html
Cache-Control                  => no-cache
Content-Length                 => 3526
Proxy-Connection               => Keep-Alive
Auth not required (HTTP code: 302)
Config profile  2/4... NTLM Request:
	   Domain:
	 Hostname: purcell
	    Flags: 0xB207

Sending PROXY auth request...
Proxy-Connection               => keep-alive
Host                           => www.google.com
Proxy-Authorization            => NTLM TlRMTVNTUAABAAAAB7IAAAAAAAAnAAAABwAHACAAAABQVVJDRUxM
Content-Length                 => 0

Reading PROXY auth response...
HEAD: HTTP/1.1 302 authenticationrequired
Via                            => 1.1 129.112.115.42 (McAfee Web Gateway 7.4.2.1.0.17593)
Date                           => Mon, 23 Jun 2014 17:17:48 GMT
Location                       => https://m-proxy3.swmed.edu:10000/mwg-internal/de5fs23hu73ds/plugin?target=Auth&reason=Auth&ClientID=3904493130&ttl=43200&url=aHR0cDovL3d3dy5nb29nbGUuY29t&rnd=1403543868
Content-Type                   => text/html
Cache-Control                  => no-cache
Content-Length                 => 3526
Proxy-Connection               => Keep-Alive
Auth not required (HTTP code: 302)
Config profile  3/4... NTLM Request:
	   Domain:
	 Hostname: purcell
	    Flags: 0xB206

Sending PROXY auth request...
Proxy-Connection               => keep-alive
Host                           => www.google.com
Proxy-Authorization            => NTLM TlRMTVNTUAABAAAABrIAAAAAAAAnAAAABwAHACAAAABQVVJDRUxM
Content-Length                 => 0

Reading PROXY auth response...
HEAD: HTTP/1.1 302 authenticationrequired
Via                            => 1.1 129.112.115.42 (McAfee Web Gateway 7.4.2.1.0.17593)
Date                           => Mon, 23 Jun 2014 17:17:48 GMT
Location                       => https://m-proxy3.swmed.edu:10000/mwg-internal/de5fs23hu73ds/plugin?target=Auth&reason=Auth&ClientID=3904493130&ttl=43200&url=aHR0cDovL3d3dy5nb29nbGUuY29t&rnd=1403543868
Content-Type                   => text/html
Cache-Control                  => no-cache
Content-Length                 => 3526
Proxy-Connection               => Keep-Alive
Auth not required (HTTP code: 302)
Config profile  4/4... NTLM Request:
	   Domain:
	 Hostname: purcell
	    Flags: 0xA208B207

Sending PROXY auth request...
Proxy-Connection               => keep-alive
Host                           => www.google.com
Proxy-Authorization            => NTLM TlRMTVNTUAABAAAAB7IIogAAAAAnAAAABwAHACAAAABQVVJDRUxM
Content-Length                 => 0

Reading PROXY auth response...
HEAD: HTTP/1.1 302 authenticationrequired
Via                            => 1.1 129.112.115.42 (McAfee Web Gateway 7.4.2.1.0.17593)
Date                           => Mon, 23 Jun 2014 17:17:48 GMT
Location                       => https://m-proxy3.swmed.edu:10000/mwg-internal/de5fs23hu73ds/plugin?target=Auth&reason=Auth&ClientID=3904493130&ttl=43200&url=aHR0cDovL3d3dy5nb29nbGUuY29t&rnd=1403543868
Content-Type                   => text/html
Cache-Control                  => no-cache
Content-Length                 => 3526
Proxy-Connection               => Keep-Alive
Auth not required (HTTP code: 302)

Your proxy is open, you don't need another proxy.
cntlm: Terminating with 0 active threads