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Unblocking Ports
#1
Hi all, I'm GeorgeH and I am quite new here Sleepy

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?
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#2
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)
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#3
I also have access to Sigma x2, do you know if that's any better?
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#4
i have no idea as google gives no real clues on how to bypass the block other than using a vpn
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#5
Meh. I need port 25 coming in... I wonder how much more expensive business class is..
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#6
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...
Knowledge=Power
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#7
So flashing my modem won't do me any good. Shame..
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#8
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
Knowledge=Power
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#9
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?
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#10
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....
Knowledge=Power
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