I think you'll find that it's not users complaining about the ads on the
sites but, because they're often loading up from JavaScript before the
page body loads, they stop the rest of the page displaying until the
connection attempts time out. Staring at a blank screen for a minute
before the page comes up will be what the users are really complaining
about.
But this is getting a little off-topic so consider the obligatory +beer
comment inserted. :)
TGIF,
Chris.
From: Anton Smith [mailto:anton(a)huge.geek.nz]
Sent: Thursday, 15 May 2008 10:06 p.m.
To: nznog(a)list.waikato.ac.nz
Subject: Re: [nznog] ip ranges
From: Nathan Ward
Subject: Re: [nznog] ip ranges
To: nznog
Message-ID:
Content-Type: text/plain; charset=US-ASCII; format=flowed;
delsp=yes
On 14/05/2008, at 4:49 PM, Vaafuti Alauni (Vaa) wrote:
> Thanks guys for your fast responses,
>
> some sites some of our customers are having troubles with are
:
> sites within tv3.co.nz http://tv3.co.nz/ (doubleclick.net
http://doubleclick.net/ )
> sites within tvone.co.nz http://tvone.co.nz/
(tvoneondemand.co.nz http://tvoneondemand.co.nz/ )
> some links in yellow.co.nz http://yellow.co.nz/ and white
pages.
>
> the specific ranges that our customers sourcing from is the
> 202.68.86.0/23
Your customers are complaining about not being able to see
advertisements on the TV3 website? :-)
Looks to me like your BGP advertisements are a bit wierd, but
it's
hard to be sure from where I'm sitting.
For example, WIX has 202.68.86/24, and 202.68.87/24. Why are you
not
advertising that as a /23?
APE doesn't have either prefix, or the /23. It does seem to have
202.68.94/23 though, which is in your /19.
Both appear internationally as /24s, no /23 - this means that
those
other NZ networks /should/ see your traffic, unless you have
some kind
of filtering in place. You don't have strict RPF or anything do
you?
Do you have routes to reach those networks? I assume so, if
you're
able to reach them from some of your prefixes.
I also notice that subnets of 202.68.87/24 appear on WIX - a /27
and
a /28. Are these the customers that are having problems?
Aggregation would be good while we're at it:
http://www.cidr-report.org/cgi-bin/as-report?as=AS24183&view=2.0
I wonder if those sites are with (or transited by) telstraclear, I
remember their transparent proxy causes problems similar to this in our
network at times. I think it might even have been you (Nathan) that
pointed out its existence to me :).
I ran into problems with it by advertising more specific prefixes at
WIX. Since we got rid of that it seems to be okay.
Regards,
Anton
