Disable all policies after iRule execution - Multiple redirect/respond invocations not allowed

I believe policies happen before iRules, so the easiest solution would probably be to put everything in an iRule and not use the policies.

when HTTP_REQUEST {
    if { not ( [class match [IP::client_addr] equals LOCAL_NET] ) } {
        HTTP::respond 200 content "Service is not working'" Cache-Control "No-Cache" Pragma "No-Cache"
    } else {
        if { [string tolower [HTTP::uri]] equals "/foo" } {
            HTTP::redirect "/bar"
        }
    }
}