Re: [Spud] ??????: Numbers...

[Youjianjie <[e-mail]>]

I have never heard 99% of UDP is trash to be true. Security folks
in Cisco told me "a lot of unix networking apps from the 80th/90th
based on UDP where extremely insecure", and i think thats definitely
true and has lead the first wave of firewalling off UDP. The second
wave was p2p sharing apps which also caused a lot of enterprises to be
weary of UDP and firewall it. 


On Fri, Jun 12, 2015 at 09:48:55AM +0000, Youjianjie wrote:
> Hi,
> 
> I'm also confused about the following description:
> "Today UDP is often blocked (???99% of UDP is garbage???) but volume of (good) UDP traffic grows, e.g. RTCWEB uses UDP for data and media"
> 
> What kind of UDP is called garbage? Why UDP is often blocked?
> Could somebody please explain?
> 
> Thanks,
> Jianjie
> 
> > -----????????????-----
> > ?????????: Spud [mailto:[e-mail]] ?????? Mirja Kühlewind
> > ????????????: 2015???3???25??? 20:55
> > ?????????: Martin Stiemerling
> > ??????: [e-mail]
> > ??????: Re: [Spud] Numbers...
> > 
> > Hi Martin,
> > 
> > this sentence is in quotes because that???s stuff people did actually say to me or
> > others. 99% is not true but there are currently no number publicly available to
> > our knowledge. We just started measurements on this and we are also
> > currently talking to people who might have some numbers e.g. for
> > chrome/QUIC (that???s part of the hops activity).
> > 
> > Mirja
> > 
> > 
> > > Am 25.03.2015 um 07:31 schrieb Martin Stiemerling <[e-mail]>om>:
> > >
> > > Hi all,
> > >
> > > I am just going through the slides for today's BOF and just got stuck on slide 5
> > of which says:
> > > "Today UDP is often blocked (???99% of UDP is garbage???) but volume of
> > > (good) UDP traffic grows, e.g. RTCWEB uses UDP for data and media"
> > >
> > > Is there reliable data that underscores UDP is often blocked?
> > >
> > > I can see cases, e.g., enterprises where this is true, but in most other
> > settings my UDP traffic is just making it to the other end, by today. Was
> > different a couple of years ago, when there was no stateful filtering of UDP
> > traffic implemented.
> > >
> > > Thanks,
> > >
> > >  Martin
> > >
> > > _______________________________________________
> > > Spud mailing list
> > > [e-mail]
> > > https://www.ietf.org/mailman/listinfo/spud
> > 
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-- 
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Toerless Eckert, [e-mail]