Cached webserver header

Are you wanting to insert a custom HTTP header with the client IP address in responses before they are sent to the pool? Or are you wanting to select a pool based on the value of an HTTP header already in the client request?

To do the former, configure the following for the pool:

X-Forwarded-For: ${client_addr}

To do the latter, you could create a class containing the network/mask of the clients you want to route specially, and then use something like this for the rule:

class my_hosts_networks_class {

network 10.20.30.0 mask 255.255.255.0

host 10.1.1.1

}

if (http_header("x_http_forwarded_for")) one of my_hosts_networks_class {
   use pool special_pool
}
else {
   use pool main_pool
}

You can check the BIG-IP Reference Guide for your version for more examples:

Click here

Aaron