Hi,
"insert-http IS_SSL header-value "ssl"?
It just indicate that ACE will insert a HTTP header with name "IS_SSL" with a value "ssl"
1- Whey we have to use this command SSL temination? ( Not sure of any command as SSL termincation )
I assume you are asking about command "insert-http"
We use it normally to pass some extra information to the server such as client ip, port etc.
Refer the following link for more details :
http://www.cisco.com/en/US/docs/interfaces_modules/services_modules/ace/vA4_2_0/configuration/slb/guide/classlb.html#wp1313278
read section :
Configuring HTTP Header Insertion
SSL termination and header insertion are two different things. In case of HTTPS traffic in order to insert a header you need to configure SSL termination.
2- If we do not use the command whether the ACE will reply back to the client that session is a HTTP session instead of https session?
Answer: It is more of server requirement. They may be looking for some specific header and thats the reason you end up configuring "HTTP Header Insertion"
ACE does not take any decision based on header insertion. So ACE will do nothing in this case.
3- for which design requirement we have to use this command?
Specifically when you use client NAT then you need HTTP header insert.
Such as inserting header as "x-forward" to pass client IP address.
The below link explains you the same.
http://www.cisco.com/en/US/products/hw/modules/ps2706/products_configuration_example09186a00809c3041.shtml
Hope that helps.
regards,
Ajay Kumar
