backend squid1 {
.host = "10.10.42.5";
.port = "80";
}

backend squid2 {
.host = "10.10.42.6";
.port = "80";
}

director default round-robin {
     {.backend = squid1; }
     {.backend = squid2; }
}

sub vcl_recv {
     if (req.http.Cookie) {
         unset req.http.Cookie;
     }
     set req.backend = default;
}