That worked OK. See below. I don't doubt that the F5 is redirecting, but the browser doesn't seem to be happy with what it's getting back. I just don't know what that is. Could it be a version issue? I'm running 9.4.6.
* About to connect() to 10.70.70.91 port 80
* Trying 10.70.70.91... connected
* Connected to 10.70.70.91 (10.70.70.91) port 80
> GET /hello.txt HTTP/1.1
> User-Agent: curl/7.15.3 (i686-redhat-linux-gnu) libcurl/7.15.3 OpenSSL/0.9.7l zlib/1.1.4
> Accept: */*
> Host: ddcpoc.com
>
< HTTP/1.1 200 OK
< Content-Type: text/plain
< Last-Modified: Mon, 08 Aug 2011 14:05:44 GMT
< Accept-Ranges: bytes
< ETag: "aaf644d455cc1:0"
< Server: Microsoft-IIS/7.0
< Date: Mon, 08 Aug 2011 20:03:52 GMT
< Content-Length: 10
Connection 0 to host 10.70.70.91 left intact
* Closing connection 0
Dave