Add Ip member pool in my header browser

I should have explained - by "insert a response in the headers", I meant that the LTM would be passing the server IP along with the rest of the HTTP response headers. These are not displayed by the browser or in the page source. To see them, you will need to use one of the plug-ins mentioned by hoolio above.

In a normal transaction, the headers will look something like this:

  
  GET / HTTP/1.1  
  Host: 10.10.10.30  
  User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4  
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
  Accept-Language: en-us,en;q=0.5  
  Accept-Encoding: gzip,deflate  
  Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7  
  Keep-Alive: 300  
  Connection: keep-alive  
  Pragma: no-cache  
  Cache-Control: no-cache  
    
  HTTP/1.x 200 OK  
  Date: Tue, 16 Dec 2008 14:46:23 GMT  
  Server: Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.3 with Suhosin-Patch  
  X-Powered-By: PHP/5.2.4-2ubuntu5.3  
  Last-Modified: Tue, 09 Dec 2008 14:46:23 GMT  
  Cache-Control: no-cache  
  Content-Length: 4636  
  Connection: close  
  Content-Type: text/html; charset=utf-8  
  

The first set of headers is sent by the browser, the second is the set of responses from the webserver. hoolio's iRule adds the server IP to the server response headers as follows:

  
  HTTP/1.x 200 OK  
  Date: Tue, 16 Dec 2008 14:49:45 GMT  
  Server: Apache/2.2.8 (Ubuntu) PHP/5.2.4-2ubuntu5.3 with Suhosin-Patch  
  X-Powered-By: PHP/5.2.4-2ubuntu5.3  
  Last-Modified: Tue, 09 Dec 2008 14:49:46 GMT  
  Cache-Control: no-cache  
  Content-Length: 4624  
  Keep-Alive: timeout=15, max=100  
  Connection: Keep-Alive  
  Content-Type: text/html; charset=utf-8  
  Server_IP: 10.10.10.21