Broadband Tech → Security → Security > Open ports

Re: Open ports

A port is just a number; it does not have much of an existence besides that. A "port" can do you no harm.

What matters is whether there is some program listening on that port number. If there is not, then the port cannot possibly be "open".

Really, the port exists on the end computer not in the firewall. Intermediate-device firewalls muddy up the terminology a little: the port is "open" if the firewall is willing to forward packets to the program that has the port open.

So, what's listening on the port range you mentioned? Look at the computers in your network. If none of them have any program listening on those port numbers, then nothing can process messages that arrive. WIth one caveat: there could be an entity running in the router - and in that case, adding another router on the inside will not change it.

Note that "port 1024" is not a complete definiton. There is "TCP port 1024" and "UDP port 1024".

You could run another router in series with the modem/router, between that and the computer. I have actually done that.

So probably nothing I can do about it if that's the case; thanks for your help!

No, the Ip's aren't even close. Perhaps a proxy as suggested by NormanS? And I'll check UPNP; thanks for your reply!

Most likely Hughesnet uses a proxy, and the open ports are Hughesnet intercepting the GRC probes before they reach your router.
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Norman
~Oh Lord, why have you come
~To Konnyu, with the Lion and the Drum

Does the WAN IP shown by GRC match the WAN IP shown in the router's status page?

If so have a look at the port forwarding configuration. This will help you find it.

Somewhere in there, there should also be a toggle for UPNP. Turn it off.

If you are running any version of Windows XP or newer, check on your Windows Firewall settings too.
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Oh, Opera, what have you done?

Hope I'm at least starting in the right place, everyone. I have an AT&T provided wireless router/modem combo that is stealthed according to GRC's Shields Up!; green across the board. Only 768 kbps DSL, but absolutely reliable. But I also have a Hughesnet HT1000 Gen4 satellite modem running thru a Cisco/Linksys E1200 router, latest firmware for router; I assume the sat modem upgrades itself, as the status app shows very basic info. Problem is, Shields Up! shows ports 1024 sequentially thru 1030 being held open; and boy I don't like this one bit! Any suggestions from you gurus? Thanks!