My network uses a Netopia 4652 DSL router. I am not using any of the built in firewalls on it as it blocks my IIS servers from servicing even though I set them up in the NAT feature to allow traffic through. When I do a port scan from DSl Reports I am told that port 23 is open . I disabled the Telnet capability on the router but port 23 is still open . Does anyone have any idea as to how I close or block port 23 and still maintain web service ?