Re: Teaching/developing troubleshooting skills

2004-06-28 Thread John Neiberger
>It's also important that one avoid: > >* The faulty assumption there is but one problem >* Incorrectly-formed causal relationships (NANOG-L has some > examples of these) >* Making too many changes in one iteration >* Attempting to tackle a system with more unknowns than are > absolutely necessa

Re: Teaching/developing troubleshooting skills

2004-06-28 Thread Michael . Dillon
> >It's also important that one avoid: > > > >* The faulty assumption there is but one problem Here's an interesting example that I came across several years ago. It was in an office with lots of PCs plugged into RJ45 10baseT ports near each desk. One PC had lost connectivity. I came and checked

Re: Teaching/developing troubleshooting skills

2004-06-28 Thread Eric Brunner-Williams
>* The faulty assumption there is but one problem >* Incorrectly-formed causal relationships Mythology. Some may recall the adventures of the CTO who ran a sweep of an net 10.* in a rather modest machine room somewhere in Maine, resulting in memory exhaustion (arp table) in the router, which res

Level 3 Issues?

2004-06-28 Thread Cody Lerum
Depending on the Yahoo you get...66.218.71.198 traceroute to 66.218.71.198 (66.218.71.198), 30 hops max, 38 byte packets 1 ge-0-3-0-7-1q-4crn-bzn.mt.core.cutthroatcom.net (209.137.232.209) 0.398 ms 0.297 ms 0.315 ms 2 fe-0-0-0-rf-45m-silo-bzn.mt.core.cutthroatcom.net (209.137.235.194) 0.81

Re: BGP list of phishing sites?

2004-06-28 Thread Paul Vixie
warning. this is about humans rather than about IOS configs. hit D now. > >> Also, an "easy fix" like this may lower the pressure on the parties > >> who are really responsible for allowing this to happen: the makers > >> of insecure software / insecure operational procedures (banks!) and > >>

Re: BGP list of phishing sites?

2004-06-28 Thread Simon Lockhart
On Mon Jun 28, 2004 at 04:47:21PM +, Paul Vixie wrote: > if it's easier for you to BGP-blackhole these bad sources and the only > reason you don't is because you think it would be unfair, then you're > part of the problem and you're helping to make the problem worse. It's wholy unfair to the

Re: Persistent DNS Zone Transfer Attempts from IP 128.232.0.31

2004-06-28 Thread Aditya
> On Sat, 26 Jun 2004 11:19:16 -0400, "Jon R. Kibler" <[EMAIL PROTECTED]> said: > Greetings, > Anyone know anything about IP 128.232.0.31? # host 128.232.0.31 > 31.0.232.128.in-addr.arpa domain name pointer > dns-probe.srg.cl.cam.ac.uk. [...] > Anyone know anything about this IP? Keep going, th

Re: BGP list of phishing sites?

2004-06-28 Thread Stephen J. Wilcox
On Sun, 27 Jun 2004, Scott Call wrote: > On the the things the article mentioned is that ISP/NSPs are shutting off > access to the web site in russia where the malware is being downloaded > from. > > Now we've done this in the past when a known target of a DDOS was upcoming > or a known websi

Re: BGP list of phishing sites?

2004-06-28 Thread Patrick W Gilmore
On Jun 28, 2004, at 1:56 PM, Stephen J. Wilcox wrote: Personally - bad. Another personal response (edited from my response to the LINX paper): Fighting "phishing" web sites is a necessary and important task. Of course, part of why it is necessary is because end users are ignorant, untrained, and

Re: BGP list of phishing sites?

2004-06-28 Thread Petri Helenius
Simon Lockhart wrote: It's wholy unfair to the innocent parties affected by the blacklisting. i.e. the collateral damage. You´ll get burned anyway in a bad neighborhood because of the bandwidth consumed by the crap. Say a phising site is "hosted" by geocities. Should geocities IP addresses be

Re: BGP list of phishing sites?

2004-06-28 Thread Dave Rand
[In the message entitled "Re: BGP list of phishing sites?" on Jun 28, 18:43, Simon Lockhart writes:] > > On Mon Jun 28, 2004 at 04:47:21PM +, Paul Vixie wrote: > > if it's easier for you to BGP-blackhole these bad sources and the only > > reason you don't is because you think it would be unf

RE: The use of .0/.255 addresses.

2004-06-28 Thread Tony Hain
While it is often great sport to poke at MS, did you consider that this might have nothing to do with classfullness or CIDR? I believe you will find that 0 & -1 are invalid for whatever netmask the windows stack is given. You might also find that some 'features' are mitigation for exploits that ex

Re: BGP list of phishing sites?

2004-06-28 Thread Dan Hollis
On Mon, 28 Jun 2004, Patrick W Gilmore wrote: > Unfortunately, I worry that this cure is worse than the disease. > Filtering IP addresses are not the right way to attack these sites - > the move too quickly and there is too much danger of collateral damage. I think part of the point of this bl

Re: BGP list of phishing sites?

2004-06-28 Thread Patrick W Gilmore
On Jun 28, 2004, at 2:43 PM, Dan Hollis wrote: On Mon, 28 Jun 2004, Patrick W Gilmore wrote: Unfortunately, I worry that this cure is worse than the disease. Filtering IP addresses are not the right way to attack these sites - the move too quickly and there is too much danger of collateral damage.

Re: BGP list of phishing sites?

2004-06-28 Thread Christopher L. Morrow
On Mon, 28 Jun 2004, Dan Hollis wrote: > When a provider hosts a phishing site for _weeks on end_ and does > _nothing_ despite being notified repeatedly, sometimes a blacklist is the > only cluebat strong enough to get through the provider's thick skull. there are other reasons aside from 'lam

Any problems with Sprint LasVegas

2004-06-28 Thread Philip Lavine
Is anybody experiencing issues with Sprint in Ls Vegas? Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage!

Re: BGP list of phishing sites?

2004-06-28 Thread Alex Bligh
--On 28 June 2004 18:43 +0100 Simon Lockhart <[EMAIL PROTECTED]> wrote: It's wholy unfair to the innocent parties affected by the blacklisting. i.e. the collateral damage. Say a phising site is "hosted" by geocities. Should geocities IP addresses be added to the blacklist? What if it made it ont

Sprint-Savvis outage Las Vegas

2004-06-28 Thread Philip Lavine
Has anybody seen an interuption in service in Las Vegas with Sprint or Savvis __ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo

Re: BGP list of phishing sites?

2004-06-28 Thread Paul Vixie
> > It's wholy unfair to the innocent parties affected by the blacklisting. > > i.e. the collateral damage. maybe so. but it'll happen anyway, because victims often have no recourse that won't inflict collateral damage. the aggregate microscopic damage of this kind is becoming measurable and "s

RE: BGP list of phishing sites?

2004-06-28 Thread Smith, Donald
Some are making this too hard. Of the lists I know of they only blackhole KNOWN active attacking or victim sites (bot controllers, know malware download locations etc) not porn/kiddie porn/pr/choose-who-you-hate-sites ... clients (infected pc's) are usually not included but could make it on the li

Re: BGP list of phishing sites?

2004-06-28 Thread Edward B. Dreger
PWG> Date: Mon, 28 Jun 2004 15:04:59 -0400 PWG> From: Patrick W Gilmore PWG> If the blacklist is only for sites which are weeks, or even PWG> a couple days old, that probably would remove most of the PWG> objections. (I _think_ - I have not considered all the PWG> ramifications, but it sounds li

RE: BGP list of phishing sites?

2004-06-28 Thread Stephen J. Wilcox
Hi Donald, the bogon feed is not supposed to be causing any form of disruption, the purpose of a phishing bgp feed is to disrupt the IP address.. thats a major difference and has a lot of implications. Steve On Mon, 28 Jun 2004, Smith, Donald wrote: > Some are making this too hard. > Of the

RE: BGP list of phishing sites?

2004-06-28 Thread Smith, Donald
I agree phishing bgp feed would disrupt the ip address to all ISP's that listened to the bgp server involved. I was addressing a specific issue with listening to such a server and that is the loss of control issue. Sorry if that wasn't clear. So would ISP's block an phishing site if it was prov

Re: BGP list of phishing sites?

2004-06-28 Thread Simon Lockhart
On Mon Jun 28, 2004 at 03:12:12PM -0600, Smith, Donald wrote: > So would ISP's block an phishing site if it was proven > to be a phishing site and reported by their customers? Would you block access to a kiddie porn site? Do you block access to "warez" sites? Both are illegal. I'm not convinced

Re: BGP list of phishing sites?

2004-06-28 Thread Iljitsch van Beijnum
On 28-jun-04, at 18:47, Paul Vixie wrote: the root cause of network abuse is humans and human behaviour, not hardware or software or corporations or corporate behaviour. if most people weren't sheep-like, they would pay some attention to the results of their actions and inactions. It's easy to bla

Re: BGP list of phishing sites?

2004-06-28 Thread Patrick W Gilmore
On Jun 28, 2004, at 6:24 PM, Iljitsch van Beijnum wrote: On 28-jun-04, at 18:47, Paul Vixie wrote: the root cause of network abuse is humans and human behaviour, not hardware or software or corporations or corporate behaviour. if most people weren't sheep-like, they would pay some attention to the

Re: The use of .0/.255 addresses.

2004-06-28 Thread Bob Snyder
On Mon, Jun 28, 2004 at 11:41:50AM -0700, Tony Hain wrote: > > While it is often great sport to poke at MS, did you consider that this > might have nothing to do with classfullness or CIDR? I believe you will find > that 0 & -1 are invalid for whatever netmask the windows stack is given. You So

Strange behavior of Catalyst4006

2004-06-28 Thread Joe Shen
Hi, We met a strange problem with Catalyst 4006 when provideing leased line service to one of our customers. Catalyst4006 Customer's firewall ---Customer's Intranet The customer is allocated a Class C address block 192.168.5/24. And , they conn

RE: Strange behavior of Catalyst4006

2004-06-28 Thread Erik Amundson
It is possible that this issue is being cause by the customer's firewall as well. Every Ethernet cable has two ends. :) I would check and see if the customer's firewall log says anything. I believe doing a shut/no shut on the Cat 4006 causes the Ethernet link to 'flap' on the port, causing the

Re: Strange behavior of Catalyst4006

2004-06-28 Thread Robert Blayzor
Joe Shen wrote: The customer is allocated a Class C address block 192.168.5/24. And , they connect their network to our network by using a firewall. The Interface on Cata4006 is set up as "no switchport", and inter-connecting subnet is configured between Cata4006 and firewall interface(10.10.1.

Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Alex Rubenstein
Please read -- this is lengthy, and important to the industry as a whole. We ask for, and solicit, comments, letters of support, etc., for our position. We are looking for people to take a position on this, and come forward, perhaps even to provide an affidavit or certification. Something along t

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Fergie (Paul Ferguson)
Of course, this is only possible with NAT at the customer edge. Otherwise, it expands the size of the global routing system exponentially. - ferg -- Alex Rubenstein <[EMAIL PROTECTED]> wrote: As you can see, this TRO has widespread effects, and is something that everyone in the industry coul

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Fergie (Paul Ferguson)
BTW, in which state did this occur? Any additional pointers? Thanks, - ferg -- Alex Rubenstein <[EMAIL PROTECTED]> wrote: Please read -- this is lengthy, and important to the industry as a whole. We ask for, and solicit, comments, letters of support, etc., for our position. We are looking for

RE: Strange behavior of Catalyst4006

2004-06-28 Thread Greg Schwimer
Some things you can look into: > firewall interface(10.10.1.122/30). > ip route 192.168.5.0 255.255.255.0 10.10.1.124 Is that the firewall interface is 10.10.1.122, or is it 10.10.1.124? 10.10.1.122 is a host address in the 10.10.1.120/30 subnet. 10.10.1.124 is a /30 network. Eithe

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Alex Rubenstein
The action is taking place in the Superior Court of State New Jersey. Please contact me offlist if you are interested in helping further. On Tue, 29 Jun 2004, Fergie (Paul Ferguson) wrote: > > BTW, in which state did this occur? Any additional pointers? > > Thanks, > > - ferg > > -- Alex Rube

Re: BGP list of phishing sites?

2004-06-28 Thread Paul Vixie
> > the root cause of network abuse is humans and human behaviour, not > > hardware or software or corporations or corporate behaviour. if most > > people weren't sheep-like, they would pay some attention to the results > > of their actions and inactions. > > It's easy to blame the user, and usu

Conference - Preventing the Internet Meltdown

2004-06-28 Thread Hank Nussbacher
http://www.pfir.org/meltdown -Hank

RE: Strange behavior of Catalyst4006

2004-06-28 Thread Tony Rall
On Monday, 2004-06-28 at 20:41 MST, Greg Schwimer <[EMAIL PROTECTED]> wrote: > Some things you can look into: > > > firewall interface(10.10.1.122/30). > > ip route 192.168.5.0 255.255.255.0 10.10.1.124 > > Is that the firewall interface is 10.10.1.122, or is it 10.10.1.124? > 10.10.1.122 is a

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Edward B. Dreger
AR> Date: Mon, 28 Jun 2004 23:42:26 -0400 (Eastern Standard Time) AR> From: Alex Rubenstein AR> The action is taking place in the Superior Court of State New AR> Jersey. If the Court considers it a state matter, and lacks the ability to regulate interstate commerce, does that mean out-of-state I

Re: Conference - Preventing the Internet Meltdown

2004-06-28 Thread Randy Bush
strange stuff they smoke down there in socal

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread william(at)elan.net
What you really should try is to have ARIN provide "friend of the court" brief and to explain to judge policies and rules in regards to ip space, so you need to have your laywer get in touch with ARIN's lawyer. You can probably even force them to provide a statement or testimony (if they don'

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Patrick W Gilmore
On Jun 29, 2004, at 12:36 AM, Edward B. Dreger wrote: If the Court considers it a state matter, and lacks the ability to regulate interstate commerce, does that mean out-of-state ISPs recognizing ARIN's authority are not required to listen to the announcements? Who cares what the court thinks? Are

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Charles Sprickman
On Mon, 28 Jun 2004, Alex Rubenstein wrote: > There has been a Temporary Restraining Order (TRO) issued by state court > that customers may take non-portable IP space with them when they leave > their provider. Important to realize: THIS TEMPORARY RESTRAINING ORDER HAS > BEEN GRANTED, AND IS CURR

RE: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Michel Py
What about asking the police to check the judge for drug abuse? There's more than enough evidence. Or argue that someone with an IQ below zero should not be a judge, but this might fail as most of them are former attorneys; I have more respect for common criminals than I have for most attorneys: t

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Patrick W Gilmore
On Jun 29, 2004, at 12:44 AM, Patrick W Gilmore wrote: Of course, if you just happen to uphold INTERNET STANDARDS and only accept routes from where they should originate, I'll buy you a drink at the next NANOG for being a good netizien. :) P.S. That was a serious offer to any and all ISPs. Yes, I

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Fergie (Paul Ferguson)
Regardless, this is not a telephony issue ("Can I take my cell number with me?"), as the courts as seem disposed to diagnose these days, but rather, a technical one insofar as the IP routing table efficiency. "Friends of the court" won't work here unless the technical implications are presented

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Patrick W Gilmore
On Jun 29, 2004, at 12:48 AM, Michel Py wrote: In short: drop the monkey on ARIN's back. The issue that non-portable blocks are indeed non-portable is ARIN's to deal with, and partly why we are giving money to them. I wonder why ARIN, or even more importantly, ICANN has not jumped all over this.

Re: Can a Customer take their IP's with them? (Court says yes!)

2004-06-28 Thread Alex Rubenstein
> I wonder why ARIN, or even more importantly, ICANN has not jumped all > over this. Seems to me if IP space is not "owned" or something close > to it by ICANN, they have lost a cornerstone of their power. We have been in contact with both ARIN and ICANN about this issue. We encourage all netwo

RE: Strange behavior of Catalyst4006

2004-06-28 Thread Joe Shen
I'm sorry I made a mistake the subnet between catalyst4006 and customer's firewall is 10.10.1.213/30,  Catalyst4006's interface address is 10.10.1.213, firewall's interface address is 10.10.1.214.  Sorry. Joe On Mon, 28 Jun 2004 21:24 , Tony Rall <[EMAIL PROTECTED]> sent: On Monday, 2

Re: Can a customer take IP's with them?

2004-06-28 Thread Alex Rubenstein
On Tue, 29 Jun 2004, Florian Weimer wrote: > * Alex Rubenstein: > > > b) customer is exercising the right not to renew the business agreement, > > and is leaving NAC voluntarily. > > The customer probably has a different opinion on this particular > topic, doesn't he? No. This is a clear situ