simple redirect irule based off ip

Hello, how many networks do you need to match? 

For allowing multiple client networks you'll need a data group. 

See this example below - note that "getfield" returns a string so I'm changing the format to IP address using IP::addr .

when HTTP_REQUEST {
  if {[string tolower [HTTP::uri]] starts_with "/restricted1" }{

   if { [IP::addr [getfield [IP::client_addr] "%" 1] equals "10.2.2.0/24"]}{
       #this is a sample with a static client network
       return
    } elseif { [class match [getfield [IP::client_addr] "%" 1] equals datagroup_allowed_networks] } {
    #when you have multiple subnet to match, then it is recommended to use data-group created as Address (IP) type. 
       return
    } else {
      HTTP::redirect "https://demo.com/not-allowed"
    }
}