Unblocking Ports

[GeorgeH]

Hi all, I'm GeorgeH and I am quite new here

Comcast blocks communication on port 25, and - from what I've read - this is done at the modem. Will flashing a custom firmware remove this limitation?

Are any of the custom firmwares open source? I would love to skim the code and possibly contribute something in the future.

I am on a SB5100, so I think that means I'll have to stick to the haxorware 1.0 release. Sound correct?

[drewmerc]

sb5100mod not haxorware
i have no idea if a hacked firmware would help (if the block is sent to the modem via snmp it may work but i think it's blocked upstream)
haxorware and sb5100mod are not open (sucks)

[GeorgeH]

I also have access to Sigma x2, do you know if that's any better?

[drewmerc]

i have no idea as google gives no real clues on how to bypass the block other than using a vpn

[GeorgeH]

Meh. I need port 25 coming in... I wonder how much more expensive business class is..

[ABMJR]

Port 25 is redirected and used for mail..Spammers use this port and CC changes it to stop spam...The port isnt blocked at the modem, its @ the CMTS/Firewall

If your Business Class, they will allow it to be passed and you can control it at your end, via a mail server being hosted by you...

[GeorgeH]

So flashing my modem won't do me any good. Shame..

[ABMJR]

You could always log into the CMTS and do whatever you want...

LOL

But lets not go there...So, No, flashing your modem is worthless

[GeorgeH]

I wonder how hard it would be to social engineer my way to an unblocked port 25. Sure as hell a lot cheaper than going to an equivalent business class plan. Also, what the hell - I have a residential plan and have a static IP, but they make you pay extra for that on a business plan?

[ABMJR]

Why not call and ask? Also, this isnt a customer support, more of a Technical Support Engineer, who is able to open the port up on your CMTS's Firewall....