[178706] in North American Network Operators' Group
Re: content regulation, was Verizon Policy Statement on Net Neutrality
daemon@ATHENA.MIT.EDU (Owen DeLong)
Mon Mar 2 15:25:38 2015
X-Original-To: nanog@nanog.org
From: Owen DeLong <owen@delong.com>
In-Reply-To: <20150302113946.GB4153@gsp.org>
Date: Mon, 2 Mar 2015 12:20:37 -0800
To: Rich Kulawiec <rsk@gsp.org>
Cc: nanog@nanog.org
Errors-To: nanog-bounces@nanog.org
Not so sure about that=E2=80=A6
240.59.103.76.in-addr.arpa. 7200 IN PTR =
c-76-103-59-240.hsd1.ca.comcast.net.
is most definitely a business class service from Comcast. Seems to match =
the entry for 24.7.48.153 pretty closely.
I think the difference is the type of cable network in the particular =
area. HFC is Hybrid Fiber Coax. The network in San Jose doesn=E2=80=99t =
really have any fiber, so it=E2=80=99s likely not an HFC network. I=E2=80=99=
m not sure what HSD stands for other than possibly =E2=80=9CHigh Speed =
Data=E2=80=9D, but I suspect it=E2=80=99s more likely some =
cable-specific term for an all-copper alternative to HFC.
Owen
> On Mar 2, 2015, at 03:39 , Rich Kulawiec <rsk@gsp.org> wrote:
>=20
> On Sun, Mar 01, 2015 at 11:58:34AM -0500, Christopher Morrow wrote:
>> business vs consumer edition products? (that'd be my bet)
>=20
> I think these are all residential customers, as business customers
> appear to use different subdomains and/or host naming conventions, =
e.g.:
>=20
> 24.7.48.153 c-24-7-48-153.hsd1.ca.comcast.net
> 24.10.217.142 c-24-10-217-142.hsd1.ut.comcast.net
> 24.129.85.220 c-24-129-85-220.hsd1.fl.comcast.net
> vs.
> 70.88.25.201 =
70-88-25-201-chesterfield-va.hfc.comcastbusiness.net
> 70.90.158.37 70-90-158-37-knoxville.hfc.comcastbusiness.net
> 70.91.133.105 70-91-133-105-ma-ne.hfc.comcastbusiness.net
>=20
> Or:
> 23.240.176.98 cpe-23-240-176-98.socal.res.rr.com
> 24.25.253.81 cpe-24-25-253-81.hawaii.res.rr.com
> 24.27.121.156 cpe-24-27-121-156.tx.res.rr.com
> vs.
> 24.106.98.106 rrcs-24-106-98-106.central.biz.rr.com
> 24.142.142.169 rrcs-24-142-142-169.central.biz.rr.com
> 24.173.100.134 rrcs-24-173-100-134.sw.biz.rr.com
>=20
> Those are all (very recent) direct-to-MX on port 25 spam sources, but =
it
> looks to me like the first group in each set is residential and the =
second
> group is business. But perhaps I'm misinterpreting the naming.
>=20
> ---rsk
