[ale] OT: Comcast Wi-Fi

Justin Goldberg justgold79 at gmail.com
Sat May 24 19:50:47 EDT 2014


I pay for the lowest tier speed, 3mb down, and I pay for no premium
service, tv or phone, and I'm able to sign on to the xfinitywifi ssid
captive portal using the comcast billing login username (without the @
comcast.net). The speed is faster through the neighbors than my own,
though, to be fair, I could very well be signed on to my own technicolor
tc35xx modem that I am renting from them.

I originally signed on at a cafe that had the ssid and then it worked at
home without signin in, in a different browser, so it appears that they are
remembering your login based on the wifi adapters mac address. Since it's
an open ap, in theory it wouldn't be too hard for a non comcast user to
sign on, just run a packet capture and then change your mac address to
someone elses.

Since the whole neighborhood shares the same headend bandwidth, I don't
dislike this idea, especially in the age of wifi 802.11n MIMO. That's how
they are able to market themselves as the "fastest wifi around".

Justin



On Mon, Apr 28, 2014 at 8:12 AM, JD <jdp at algoloma.com> wrote:

> Comcast announced this wifi network about a year ago.  Their intent is to
> allow
> any comcast customer to have access to hot-spots, tracked by their normal
> login.
>  Sorta like how many OTA networks now require a paid TV subscription to
> access
> their internet shows.  It is an added service for all their paying
> customers and
> can be convenient.  AT&T has had something like this for about a decade,
> they
> just did it at B&N stores, Starbucks, McDs, ...
>
> I haven't had residential Comcast service for years, but they were good
> about
> putting those things into their "Terms of Service" agreements. You've
> already
> agreed to it by continuing to use the service, I'm certain. I would be
> surprised
> if a call into the help desk couldn't get your device removed from this
> plan.  A
> few years ago, comcast started intercepting DNS queries. 1 call fixed that
> for
> me ... er ... after breaking things for a few days forced me to call in.
>
> Pretty much any cable modem you place on their network will be controlled
> by
> them. If you don't like that, get over it.  The same applies to DSL too.
>  The
> best we can do it treat their equipment like someone elses' equipment and
> put a
> strong pfSense router just inside it.  Don't trust any commercial routers
> and
> definitely DO NOT TRUST the firmware shipped with any router, doesn't
> matter who
> made it. The most trusted vendors seem to be just as likely to have back
> doors.
>
> On 04/28/2014 12:21 AM, Steve Nicholas wrote:
> > I have Comcast and have a wireless network.  My same status has not
> changed.
> > Will let you know if things change. Have you pinged Comcast about it? I
> would,
> > just to make sure THEY did it not not someone else.  If they did, please
> post
> > their response..  If not, you may have some security issues.  If the
> latter is
> > true, don't panic initially.  Let the list do some forensics to see what
> might
> > be going on.  Have dealt with hackers, and if this is the case, patience
> is a
> > virtue.  Let us know. But don't do info sensitive transactions on said
> box.
> >
> >
> >
> > On Thu, Apr 24, 2014 at 2:40 PM, Boris Borisov <bugyatl at gmail.com
> > <mailto:bugyatl at gmail.com>> wrote:
> >
> >     Yesterday I've noticed Comcast silently enabled additional wireless
> network
> >     on my cable router named "xfinitywifi". I didn't get the reason
> behind the
> >     idea but is open with web based login. Someone else with same issue.
> >
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists at
> http://mail.ale.org/mailman/listinfo
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.ale.org/pipermail/ale/attachments/20140524/0882f131/attachment.html>


More information about the Ale mailing list