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Is cogeco cable blocking port 25?

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Paul Belanger

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Apr 27, 2002, 11:02:34 AM4/27/02
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Hey guys,
In the past(Jan2002 and previous) I was able to setup a freebsd box on
my cable connection with sendmail running. Theses days, I'm having
terrible problems setup sendmail. I'm 99% possible that sendmail is
setup properly! And to prove this, if I change my sendmail port from
25(smtp) to 11101 I can connect to my server!

So my question is, any *nix people out there on cogeco have a server
up running sendmail? Or are other people running into this problem!

THanks!

rpo...@rpcs.net

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Apr 27, 2002, 8:50:09 PM4/27/02
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Paul Belanger <pbel...@datatek.on.ca> wrote:

> In the past(Jan2002 and previous) I was able to setup a freebsd box on
> my cable connection with sendmail running. Theses days, I'm having
> terrible problems setup sendmail. I'm 99% possible that sendmail is
> setup properly! And to prove this, if I change my sendmail port from
> 25(smtp) to 11101 I can connect to my server!

Cogeco is filtering port 25 on residential service. Have been for some
time now.

SOHO service at $99/month is not filtered.

Cheers!
--
Richard Potter
Re/Max Team ideal Realty Inc.
Kingston, ON CANADA http://www.kingstonhouses.ca

Paul Belanger

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Apr 30, 2002, 10:25:58 AM4/30/02
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Hmm.. that is sad to hear. It is strange that Cogeco has not filtered
all of its IP's yet. Since I know 3 other people running mail servers
on there residential service. As for SOHO service, does that also
increase my Bandwidth? And Capping? Or should I call Cogeco on that!

Thanks

rpo...@rpcs.net wrote in message news:<5HHy8.27512$Yt.16...@read1.cgocable.net>...

Jonathan

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Apr 30, 2002, 11:02:40 AM4/30/02
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Port 25 is filtered for inbound connections only, however the filtering is
modem specific and the configuration will fail on the modems sometimes.
This can result in uncapped modems as well as unfiltered modems ET AL.

Regarding bandwidth usage limits; for Cogeco Ontario(I'm not sure about
Quebec)they are Residential 5GB/1GB and SOHO 20GB/2GB as of the last time I
looked. Really though ISPs do not have the time to cut off every offender
manually and do not wish to do so in blanket form since such a large number
of users are in excess of these limits. The highest usage I saw was a guy
that got cut off for excess usage 8 days into the month, he already had 48GB
up and 27GB down. He was reconnected when he promised not to do it again.

I'm sure that no one here is suggesting that a cable ISP can be profitable
charging $40 for what would have amounted to 281GB of transit in one month.
These are the people that cable ISP will look at first and as those users
ether migrate to a more appropriate service of curtail their usage the 100GB
per month users may get looked at as well.

If you are using 8 Down and 2GB up in a month I find it unlikely Cogeco
would be concerned.

J

"Paul Belanger" <pbel...@datatek.on.ca> wrote in message
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Jonathan

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Apr 30, 2002, 11:04:33 AM4/30/02
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Forgot to mention, SOHO modems are configured to the same upload download
Caps as residential, they are 2Mbps/384Kbps.

J

"Jonathan" <j.ricka...@rogers.com> wrote in message
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Cedric Nagy

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May 1, 2002, 2:14:37 AM5/1/02
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Jonathan wrote:

> Forgot to mention, SOHO modems are configured to the same upload download
> Caps as residential, they are 2Mbps/384Kbps.
>
> J
>


Are these caps conveyed to the modem over the network, or preset.. as
you know i've had my modem for a while? My typical d/l speed is around
275K... is this not higher than 2Mbps? Also, you see the ocassional
Rogers/Shaw customer on this NG with about 3x that speed. Any plans to
increase?

c

Jonathan

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May 1, 2002, 7:17:15 AM5/1/02
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The caps and filtering is implemented both through the modem configuration
file and also on the UBR(first router you seen in a trace). The
configuration file will be downloaded each time your reset the modem.

I know that Rogers and Shaw both Cap their modems at 3Mbps/400Kbps(Shaw's
upstream might be 512Kbps I'm not sure). That may account for some of the
different in performance.

With DOCSIS 1.0 all the modem caps are done at the modem, however there are
a whole lot of problems with that not the least of which is that it is
possible to uncap a DOCSIS modem configured this way. Based on that
problem, Cisco introduced some extensions to the standard that allow the
capping to be enforced at the router level as well, which Cogeco has
implemented. That being said I have not seen an uncapped modem in a long
time(more than 6 months), so my guess would be the your seeing higher
throughput based on protocol encoding and compression? Otherwise you may be
in an area where they are testing higher throughputs, if that is a the case
I generally would not be privy to that knowledge.

J

"Cedric Nagy" <na...@no-spam-please.uoguelph.ca> wrote in message
news:3CCF87CD...@no-spam-please.uoguelph.ca...

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