Redirect by last directory as parameter.

Hello Thiyagu,

So, You can try with following Irule:

when HTTP_REQUEST {
set uri [HTTP::uri]

if { $uri starts_with "/a/"}{
    set rangeuri [string range [HTTP::uri] 3 end]
    set redirecturi "/b/go?p=$rangeuri"
    HTTP::redirect "$redirecturi"
    log local0. "redirect to $redirecturi from $uri"

}
}

Regards,