Hi,
I've been following the discussion on DDoS attacks over the last few weeks
and our network has also recently been the target of a sustained DDoS
attack. I'm not alone in believing that source address filters are the
simplest way to prevent the types of DDoS traffic that we have all been
seei
Hi,
We've been seeing this too, but it looks to have been fixed from here
(AS12703) as of about 2 minutes ago.
Regards,
Rich
On Tue, 15 Jun 2004, Deepak Jain wrote:
>
>
> We're seeing it too. Has AKAM lost any key talent that kept them
> straight until a few weeks ago? Isn't this the secon
On Mon, 25 Nov 2002, Stephen J. Wilcox wrote:
> We saw many hundred thousand packets per second entering our network
> from various international peers, each packet was tcp destined to a
> single real end user IP address and sourced from a /16 network address
> eg 61.254.0.0, where the src was ra
On Mon, 25 Nov 2002, Stephen J. Wilcox wrote:
> Glad to know its not just me..
DDoS is a problem for everyone, but only a few people seem to be trying to
do anything about it.
> FYI x.x.0.0 is a valid host address as is x.x.x.0 and it would be
> technically incorrect to block it assuming it t
On Mon, 25 Nov 2002, Chris Roberts wrote:
> Yer, some dial providers that I've seen do it to make use of these
> addresses, as x.x.x.0/32 is a perfectly valid host address.
I've seen this too. Dialup boxes that use dynamic pools prefer them to
start on a subnet boundry so that they can announce
On Wed, 27 Nov 2002, David Diaz wrote:
> I think this is old news. There was a cover story back in 1996 time
> frame on Mae_east. We have to ask how likely is this with many of
> the top backbones doing private peering over local loops, how much
> damage would occur if an exchange point whe
On Thu, 19 Jun 2003, Mike wrote:
> I have sent mail to every address @BT that looks like it might possess
> clue, to no avail. This is a general plea for help- if anyone has an
> idea of how I might resolve this, I would be very grateful...
Point the customer at www.traceroute.org?
HTH,
Ric
On Wed, 23 Jul 2003, Dave Temkin wrote:
> Is this really an issue? So long as they're not advertising the space I
> see no issue with routing traffic through a 10. network as transit. If
> you have no reason to reach their router directly (and after Cisco's last
> exploit, I'd think no one woul
On Wed, 23 Jul 2003, Jared Mauch wrote:
> I think you'll see more and more networks slowly over
> time move closer to bcp38.
Is there anywhere that this is recorded? It would be interesting to see
what the actual state of play on implementation of BCP38 was.
> I believe that AT&T is
Hi all,
Does anyone have any good/bad experiences to share about France
Telecom/Open Transit?
Cheers,
Rich
On Wed, 30 Jul 2003, Mike Tancsa wrote:
> I recall one of our users was involved in a DoS once a few years back
> when the "giant pings" could crash MS boxes. The fact that his perceived
> anonymity was removed was enough to keep him from repeating his
> attacks
That's the heart of the probl
On Wed, 30 Jul 2003, Rob Thomas wrote:
> I've tracked 1787 DDoS attacks since 01 JAN 2003. Of that number,
> only 32 used spoofed sources. I rarely see spoofed attacks now.
Do you have any ideas as to why that is? Is it due to more providers
doing source filtering? It wouldn't make sense fo
On Wed, 6 Aug 2003, Austad, Jay wrote:
> As a side note, I've used Cisco's CSS, F5's stuff, Alteon, and Foundry. Out
> of all of them that I've used, the Foundry had the least problems and had a
> nicely structured config.
Foundry seems to be fine for www traffic, but has serious issues with
On Thu, 14 Aug 2003, St. Clair, James wrote:
> Cars did not become more popular because owners had to learn how to swap
> more parts.
The good ole "computers as cars" metaphor. In the UK:
1) In order to drive a car, you have to have a license.
2) In order to have the car on the road, you ha
On Thu, 14 Aug 2003, St. Clair, James wrote:
> I've lived in the UK, and never had a license to maintain or update the
> engine.
See point number 2:
> > 2) In order to have the car on the road, you have to have it taxed and
> > have a qualified mechanic certify it for basic road worthiness.
Hi all,
I was just updating a couple of Windows machines and had been using
Windows Update without any problems until about 5 mins ago (22:10 GMT)
when I've started getting this:
"Thank you for your interest in Windows Update
Windows Update is the online extension of Windows that helps you ge
It's just come back now. Must have been a temporary holding page while
they did some maintenance.
On Sun, 17 Aug 2003, [EMAIL PROTECTED] wrote:
>
> Hi all,
>
> I was just updating a couple of Windows machines and had been using
> Windows Update without any problems until about 5 mins ago (2
On Wed, 27 Aug 2003, [EMAIL PROTECTED] wrote:
> We have a similarly sized connection to MFN/AboveNet, which I won't
> recommend at this time due to some very questionable null routing they're
> doing (propogating routes to destinations, then bitbucketing traffic sent
> to them) which is causing c
On Wed, 3 Sep 2003, matthew zeier wrote:
> I know this has been mentioned before, but other than NetBotz (too pricey),
> what are people use as ethernet-based, SNMP-probable temp sensors?
http://www.jacarta.co.uk
Rich
Hi all,
We're looking at L3 switches which have decent L3 packet forwarding
performance (wirespeed if possible), a reasonable amount of L4 ACLs/ACEs
(an average of at least 80 per port) and comes in a 24-port 10/100 port
package with a couple of GBIC slots for uplinking to the core network.
OSP
On Sun, 25 Jan 2004, Jeff Kell wrote:
> We're running 30 SVIs on a 3550-12 (only 10 active at the moment, we're
> in a transition). It is an aggregation switch that feeds back via L3.
According to the documentation on the Cisco site:
http://www.cisco.com/warp/public/473/145.html
The 3550-12
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