nanog mailing list archives

Re: FCC chairwoman: Fines alone aren't enough (Robocalls)


From: Michael Thomas <mike () mtcc com>
Date: Tue, 4 Oct 2022 11:37:55 -0700


On 10/4/22 11:20 AM, Mike Hammett wrote:
Isn't part of STIR/SHAKEN to make it easier to determine the ingress provider, or the provider of last blame?

Not exactly. Unlike DKIM which is basically a "blame me" kind of authentication at the domain level, STIR/SHAKEN tries to solve the problem of who is allowed to use what E.164 address. You can probably educe which domain to blame from it... sort of -- I'm not familiar enough with the specifics to say how though.


The object has always been to shut down open relays, and this is much much easier in the telephony space. Like for one, the FCC exists and regulates it. That is not true of email.


Mike




-----
Mike Hammett
Intelligent Computing Solutions
http://www.ics-il.com

Midwest-IX
http://www.midwest-ix.com

------------------------------------------------------------------------
*From: *"Michael Thomas" <mike () mtcc com>
*To: *"Mike Hammett" <nanog () ics-il net>, "Shane Ronan" <shane () ronan-online com>
*Cc: *nanog () nanog org
*Sent: *Tuesday, October 4, 2022 1:18:24 PM
*Subject: *Re: FCC chairwoman: Fines alone aren't enough (Robocalls)


On 10/4/22 6:07 AM, Mike Hammett wrote:

    I think the point the other Mike was trying to make was that if
    everyone policed their customers, this wouldn't be a problem.
    Since some don't, something else needed to be tried.


Exactly. And that doesn't require an elaborate PKI. Who is allowed to use what telephone numbers is an administrative issue for the ingress provider to police. It's the equivalent to gmail not allowing me to spoof whatever email address I want. The FCC could have required that ages ago.


Mike


    -----
    Mike Hammett
    Intelligent Computing Solutions
    http://www.ics-il.com

    Midwest-IX
    http://www.midwest-ix.com

    ------------------------------------------------------------------------
    *From: *"Shane Ronan" <shane () ronan-online com>
    *To: *"Michael Thomas" <mike () mtcc com>
    *Cc: *nanog () nanog org
    *Sent: *Monday, October 3, 2022 9:54:07 PM
    *Subject: *Re: FCC chairwoman: Fines alone aren't enough (Robocalls)

    The issue isn't which 'prefixes' I accept from my customers, but
    which 'prefixes' I accept from the people I peer with, because
    it's entirely dynamic and without a doing a database dip on EVERY
    call, I have to assume that my peer or my peers customer or my
    peers peer is doing the right thing.

    I can't simply block traffic from a peer carrier, it's not
    allowed, so there has to be some mechanism to mark that a prefix
    should be allowed, which is what Shaken/Stir does.

    Shane



    On Mon, Oct 3, 2022 at 7:05 PM Michael Thomas <mike () mtcc com> wrote:

        The problem has always been solvable at the ingress provider. The
        problem was that there was zero to negative incentive to do
        that. You
        don't need an elaborate PKI to tell the ingress provider which
        prefixes
        customers are allow to assert. It's pretty analogous to when
        submission
        authentication was pretty nonexistent with email... there was no
        incentive to not be an open relay sewer. Unlike email spam, SIP
        signaling is pretty easy to determine whether it's spam. All
        it needed
        was somebody to force regulation which unlike email there was
        always
        jurisdiction with the FCC.

        Mike

        On 10/3/22 3:13 PM, Jawaid Bazyar wrote:
        > We're talking about blocking other carriers.
        >
        > On 10/3/22, 3:05 PM, "Michael Thomas" <mike () mtcc com> wrote:
        >
        >      On 10/3/22 1:54 PM, Jawaid Bazyar wrote:
        >      > Because it's illegal for common carriers to block
        traffic otherwise.
        >
        >      Wait, what? It's illegal to police their own users?
        >
        >      Mike
        >
        >      >
        >      > On 10/3/22, 2:53 PM, "NANOG on behalf of Michael
        Thomas" <nanog-bounces+jbazyar=verobroadband.com () nanog org on
        behalf of mike () mtcc com> wrote:
        >      >
        >      >
        >      >      On 10/3/22 1:34 PM, Sean Donelan wrote:
        >      >      > 'Fines alone aren't enough:' FCC threatens to
        blacklist voice
        >      >      > providers for flouting robocall rules
        >      >      >
        >      >      >
        https://www.cyberscoop.com/fcc-robocall-fine-database-removal/
        >      >      >
        >      >      > [...]
        >      >      > “This is a new era. If a provider doesn’t meet
        its obligations under
        >      >      > the law, it now faces expulsion from America’s
        phone networks. Fines
        >      >      > alone aren’t enough,” FCC chairwoman Jessica
        Rosenworcel said in a
        >      >      > statement accompanying the announcement.
        “Providers that don’t follow
        >      >      > our rules and make it easy to scam consumers
        will now face swift
        >      >      > consequences.”
        >      >      >
        >      >      > It’s the first such enforcement action by the
        agency to reduce the
        >      >      > growing problem of robocalls since call ID
        verification protocols
        >      >      > known as “STIR/SHAKEN” went fully into effect
        this summer.
        >      >      > [...]
        >      >
        >      >      Why did we need to wait for STIR/SHAKEN to do this?
        >      >
        >      >      Mike
        >      >
        >
        >



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