Ports 21,23 & 80 are open the rest are closed and not stealthed [RESOLVED]

Help for v2
1

I have just installed Comodo Firewall after hearing so much about it.
According to scans from “Shields UP” and “PC Flank Tests”
Ports 21,23 & 80 are open the rest are all closed; no ports are stealthed.
I am not sharing a network, it’s just me and my computer, I am not behind a router nor am I on a LAN,
just plain DSL with modem sitting beside me. Windows XP Pro and IE7.
I installed CPF in the default mode (automatic) rebooted;
then ran the “Scan for known applications” rebooted; all this as set forth in the tutorial for correct installation.
Additionally, concerning port 23 (Telnet); the Windows service for this item is disabled.
I have allowed:
Avast (antivirus)
AdMuncher (pop-up and ad blocker)
SpywareGuard
eDexter (a program that acts as a local-only (it is not accessible throught the Internet) HTTP server on a computer.
It is used to replace the empty boxes that occur when you use the Hosts file to block ads (MVPS Hosts).

Appreciate your comments.

2

What brand and model of modem do you have? Some modems operate in a router-like state.

cheers,
Ewen :slight_smile:

3

The brand is: ZyXEL and the model is the Prestige 600 series (P-660R Compact Series).

Thanks for your reply.

4

From XyXEL’s product-page :

ZyXEL's P-660R Compact Series is the next generation of compact routers
So, you do have a router and it was your router, not your computer, that was scanned ..
5

Thanks for your quick reply.

Sorry, but I hadn’t the faintest idea that I was behind a router, I did check with my Internet provider sometime ago about security, but he never mentioned that I was behind a router, what’s more he suggested I get a good anti-virus and firewall. However, I’ll get back to him shortly.

In the meantime, can I safely surmise that my PC is adequately protected?
The opened and closed ports was not my PC broadcasting but the router?

Thank you again.