Redirecting URI and Dynamic Content

Thats what a LTM Policy would look like:

ltm policy mycompany.com_policy {
    controls { forwarding }
    requires { http }
    rules {
        egift {
            actions {
                0 {
                    http-reply
                    redirect
                    location https://456.mycompany.com[HTTP::uri]
                }
            }
            conditions {
                0 {
                    http-host
                    host
                    values { 123.mycompany.com }
                }
                1 {
                    http-uri
                    path
                    values { /egift.aspx }
                }
            }
            ordinal 1
        }
    }
    strategy first-match
}