Re: COVID-19 vs. our Networks

2020-03-21 Thread Florian Weimer
* Mike Hammett: > Netflix recommends 25 megs for Ultra HD, while only 5 megs for > HD. That's a 5x difference in something people likely won't notice > and would make a big difference on the additional VPN, VoIP, video > conferencing, etc. 4K isn't supported by all devices and plans. I'm not sur

Re: power to the internet

2020-01-02 Thread Florian Weimer
* Jason Wilson: > This is all in conjunction with the CPUC. I believe it is also a part of a > court order. I’ll need to find that later > > https://www.cpuc.ca.gov/deenergization/ I found the connection rather puzzling (that is, how switching off power distribution prevents wildfires or at least

Re: power to the internet

2020-01-04 Thread Florian Weimer
* John Levine: > In article <87y2up1vc4@mid.deneb.enyo.de> you write: >>I found the connection rather puzzling (that is, how switching off >>power distribution prevents wildfires or at least reduces their risk). >>I found some explanations here (downed lines, vegetation contact, >>conductor sl

Re: NIST NTP servers

2016-05-11 Thread Florian Weimer
* Chris Adams: > First, out of the box, if you use the public pool servers (default > config), you'll typically get 4 random (more or less) servers from the > pool. There are a bunch, so Joe Random Hacker isn't going to have a > high chance of guessing the servers your system is using. A determi

Re: Zayo Extortion

2016-08-15 Thread Florian Weimer
* Chris Knipe: > Although a company that can't manage their book keeping properly, is IMHO > enough reason to not use them... :-) Ther used to be a saying that you could choose between carries with functional billing and carriers with a functional network.

Re: "Defensive" BGP hijacking?

2016-09-12 Thread Florian Weimer
* Mel Beckman: > If we can't police ourselves, someone we don't like will do it for us. That hasn't happened with with IP spoofing, has it? As far as I understand it, it is still a major contributing factor in denial-of-service attacks. Self-regulation has been mostly unsuccessful, and yet not

Re: PlayStationNetwork blocking of CGNAT public addresses

2016-09-18 Thread Florian Weimer
* Rich Kulawiec: > For example: if the average number of outbound SSH connections > established per hour per host across all hosts behind CGNAT is 3.2, > and you see a host making 1100/hour: that's a problem. It might be > someone who botched a Perl script; or it might be a botted host > trying t

Re: PlayStationNetwork blocking of CGNAT public addresses

2016-09-18 Thread Florian Weimer
* Tom Beecher: > Simon's getting screwed because he's not being given any information to try > and solve the problem, and because his customers are likely blaming him > because he's their ISP. We don't know that for sure. Another potential issue is that the ISP just cannot afford to notify its c

Re: PlayStationNetwork blocking of CGNAT public addresses

2016-09-18 Thread Florian Weimer
* Tom Beecher: > An email to a user notifying them they're likely compromised costs > basically nothing. If this increases the probability that the customer contacts customer support, in some markets, there is a risk that the account will never turn profitable during the current contract period.

Re: PlayStationNetwork blocking of CGNAT public addresses

2016-09-18 Thread Florian Weimer
* Simon Lockhart: > On Sun Sep 18, 2016 at 03:58:57PM +0200, Florian Weimer wrote: >> * Tom Beecher: >> > Simon's getting screwed because he's not being given any information to try >> > and solve the problem, and because his customers are likely blaming him &

Re: PlayStationNetwork blocking of CGNAT public addresses

2016-09-19 Thread Florian Weimer
* Rich Kulawiec: > On Sun, Sep 18, 2016 at 03:56:30PM +0200, Florian Weimer wrote: >> * Rich Kulawiec: >> >> > For example: if the average number of outbound SSH connections >> > established per hour per host across all hosts behind CGNAT is 3.2, >> > a

Re: CDN Overload?

2016-09-20 Thread Florian Weimer
* Jon Lewis: > This is kind of a funny problem though, because CDNs get paid to > deliver data, and they get compared/graded according to who can > deliver the bits the fastest...and here you are complaining that > they're delivering the bits too fast (or at least faster than you'd > like them to)

Re: Request for comment -- BCP38

2016-09-26 Thread Florian Weimer
* Baldur Norddahl: > Den 26. sep. 2016 18.02 skrev "Mike Hammett" : >> >> The only asymmetric routing broken is when the source isn't in public > Internet route-able space. That just leaves those multi-ISP WAN routers > that NAT it. > > Some of our IP transits implement filtering. All of our trans

Re: Request for comment -- BCP38

2016-09-27 Thread Florian Weimer
* Baldur Norddahl: > This means we can receive some packet on transit port A and then route out >>> a ICMP response on port B using the interface address from port A. But >>> transit B filters this ICMP packet because it has a source address >>> belonging to transit A. >> Interesting. But this lo

Re: Krebs on Security booted off Akamai network after DDoS attack proves pricey

2016-09-27 Thread Florian Weimer
* Mark Andrews: > Dear customer, >we are seeing traffic coming from your network. > > If you need help isolating the source of the traffic here are a few > companies in your city that can help you. > > > > This is not a exhaustive list. > > Support We already had the problem in th

Re: Krebs on Security booted off Akamai network after DDoS attack proves pricey

2016-09-27 Thread Florian Weimer
* Eliot Lear: > As some on this thread know, I've been working with the folks who make > light bulbs and switches. They fit a certain class of device that is > not general purpose, but rather are specific in nature. For those > devices it is possible for the manufacturers to inform the network w

Re: Request for comment -- BCP38

2016-09-27 Thread Florian Weimer
* Jason Iannone: > I have a question regarding language. We've seen bcp38 described as a > forwarding filter, preventing unallocated sources from leaving the AS. I > understand that unicast reverse path forwarding checks support bcp38, but > urpf is an input check with significant technical diffe

Re: Request for comment -- BCP38

2016-09-27 Thread Florian Weimer
* Stephen Satchell: > Given a single local inside network with: > * multiple uplink providers (typical multi-home situation) > * multiple edge routers, each connected to an upstream via a public > routeable /30, and each further connected to the downstream inside > network > * 50 subnets (to

Re: nested prefixes in Internet

2016-09-27 Thread Florian Weimer
* Martin T.: > let's assume that there is an ISP "A" operating in Europe region who > has /19 IPv4 allocation from RIPE. From this /19 they have leased /24 > to ISP "B" who is multi-homed. This means that ISP "B" would like to > announce this /24 prefix to ISP "A" and also to ISP "C". AFAIK this >

Re: Krebs on Security booted off Akamai network after DDoS attack proves pricey

2016-09-27 Thread Florian Weimer
* Roland Dobbins: > On 27 Sep 2016, at 12:17, Sam Silvester wrote: > >> or call their electricity retailer/distributer > > This is the problematic case that is, unfortunately, the default. > > People tend to view anything related to 'the Internet' as a utility, > and for consumers and SMBs, they t

Re: Request for comment -- BCP38

2016-10-02 Thread Florian Weimer
* Jay R. Ashworth: > - Original Message - >> From: "Florian Weimer" > >> * Jason Iannone: > >>> Are urpf and bcp38 interchangeable terms in this discussion? It seems >>> impractical and operationally risky to implement two unique ways to

Re: Legislative proposal sent to my Congressman

2016-10-03 Thread Florian Weimer
* Lyndon Nerenberg: >> In thinking over the last DDos involving IoT devices, I think we >> don't have a good technical solution to the problem. Cutting off >> people with defective devices they they don't understand, and have >> little control over, is an action that makes sense, but hurts the >>

Re: nested prefixes in Internet

2016-10-05 Thread Florian Weimer
* Martin T.: > Florian: > >> Are the autonomous systems for the /19 and /24 connected directly? > > Yes they are. Then deaggregation really isn't necessary at all. >> (1) can be better from B's perspective because it prevents certain >> routing table optimizations (due to the lack of the coverin

Re: Questions re: VPN protocols globally

2016-10-05 Thread Florian Weimer
* Valdis Kletnieks: > On Wed, 05 Oct 2016 12:06:07 -0400, Eric Germann said: > >> Customers will connect to their respective regional sites separately. >> Any ITAR concerns there? > > If there are serious concerns there, I recommend spending the coin for > an actual ITAR expert. Right. I *think*

Re: Krebs on Security booted off Akamai network after DDoS attack proves pricey

2016-10-09 Thread Florian Weimer
* Eliot Lear: > Not my end goal. My end goal is that consumers have a means to limit > risk in their home environments, and service providers have a means to > deliver that to them. They already have, with today's technology. It's just not a mass-market business. Consumers either have to educa

Re: IoT security, was Krebs on Security booted off Akamai network

2016-10-09 Thread Florian Weimer
* John R. Levine: > On Sun, 9 Oct 2016, Florian Weimer wrote: > >> If we want to make consumers to make informed decisions, they need to >> learn how things work up to a certain level. And then current >> technology already works. > > I think it's fair to

Re: Dyn DDoS this AM?

2016-10-22 Thread Florian Weimer
* Randy Bush: > anyone who relies on a single dns provider is just asking for stuff such > as this. Blaming the victim isn't helpful. And without end-user-visible changes, most of the victims would still depend on Verisign as a single provider for a critical part of their DNS service.

Re: Death of the Internet, Film at 11

2016-10-23 Thread Florian Weimer
* David Conrad: > Maybe (not sure) one way would be to examine your resolver query logs > to look for queries for names that fit domain generation algorithm > patterns, then tracking down the customers/devices that are issuing > those queries and politely suggest they remove the malware on their >

Re: Death of the Internet, Film at 11

2016-10-23 Thread Florian Weimer
* Keith Medcalf: > On: Saturday, 22 October, 2016 17:41, Jean-Francois Mezei > wrote: > >> On 2016-10-22 19:03, Keith Medcalf wrote: > >> > This does not follow and is not a natural consequence of sealing the >> little buggers up so that they cannot affect the Internet > >> Problem is that ma

Re: Death of the Internet, Film at 11

2016-10-23 Thread Florian Weimer
* Randy Bush: >> What does BCP38 have to do with this? > > nothing technical, as these iot attacks are not spoofed. How do you know? Has anyone disclosed specifics? I can understand that keeping details under wraps is sometimes required for operational security, but if the attacks are clearly s

Re: OSPF vs ISIS - Which do you prefer & why?

2016-11-11 Thread Florian Weimer
* Mark Tinka: > I've given a talk about this a couple of times since 2008. But our > reasons are to choosing IS-IS are: Has the name been a problem for you? Asking vendors about support must be a bit awkward these days.

Re: pay.gov and IPv6

2016-11-18 Thread Florian Weimer
* Mark Andrews: > The DNSSEC testing is also insufficient. 9-11commission.gov shows > green for example but if you use DNS COOKIES (which BIND 9.10.4 and > BIND 9.11.0 do) then servers barf and return BADVERS and validation > fails. QWEST you have been informed of this already. > > Why the hell

Re: Whois vs GDPR, latest news

2018-05-26 Thread Florian Weimer
* Mark Andrews: > Domain whois is absolutely useful. Try contacting a site to report > that their nameservers are hosed without it. A lot of WHOIS servers do not show who's running the name servers, or who maintains the data served by them. Those that do usually provide information which is pro

Re: It's been 20 years today (Oct 16, UTC). Hard to believe.

2018-10-17 Thread Florian Weimer
* Scott Brim: > On Tue, Oct 16, 2018, 22:37 Michael Thomas wrote: > >> I believe that the IETF party line these days is that Postel was wrong >> on this point. Security is one consideration, but there are others. >> >> Mike >> > > I saw just a small swing of the pendulum toward the center, a nuan

Re: It's been 20 years today (Oct 16, UTC). Hard to believe.

2018-10-17 Thread Florian Weimer
* Laszlo Hanyecz: > On 2018-10-17 02:35, Michael Thomas wrote: >> I believe that the IETF party line these days is that Postel was wrong >> on this point. Security is one consideration, but there are others. > > Postel's maxim also allowed extensibility.  If our network code rejects > (or crashe

Re: Stupid Question maybe?

2018-12-21 Thread Florian Weimer
* Baldur Norddahl: > Why do we still have network equipment, where half the configuration > requires netmask notation, the other half requires CIDR and to throw you > off, they also included inverse netmasks. Some also drop the prefix length in diagnostic output if it matches that of the address

Re: backbones filtering unsanctioned sites

2017-02-17 Thread Florian Weimer
* Andrew Paolucci: > Can anyone with a Cogent connection in Canada verify that they are > impacted as well? I think it's global. I tried sites in Canada and Germany, and the traces look like deliberate blocking of /32s. I don't have a BGP view for these sites, though. Why wouldn't it be global

Re: backbones filtering unsanctioned sites

2017-02-17 Thread Florian Weimer
* Jared Mauch: > So risk avoidance on the part of the 100k other sites hosted by CF is > now a conspiracy? Conspiracy is perhaps a bit too strong, but I would be annoyed if someone took my business, but then deliberately undermined the service they provide. Of course, if it's all part of the agr

Re: backbones filtering unsanctioned sites

2017-02-17 Thread Florian Weimer
* Todd Crane: > I am not familiar with Cogent’s architecture but why couldn’t they > just null route the IP address at their edge routers from within > Spain? I am not a lawyer but from what I understand, since the Spanish > government has zero say on what goes on outside of their borders, Of cou

Re: backbones filtering unsanctioned sites

2017-02-17 Thread Florian Weimer
* > On Friday, 17 February, 2017 08:29, "Florian Weimer" said: > >> Of course they do, see the arrest of Augusto Pinochet. > > Universal Jurisdiction is supposed to cover the likes of war crimes, > torture, extrajudicial executions and genocide, that are generall

Re: SHA1 collisions proven possisble

2017-02-24 Thread Florian Weimer
* valdis kletnieks: > We negotiate a contract with terms favorable to you. You sign it (or more > correctly, sign the SHA-1 hash of the document). > > I then take your signed copy, take out the contract, splice in a different > version with terms favorable to me. Since the hash didn't change, yo

Re: BCP 38 coverage if top x providers ...

2017-03-24 Thread Florian Weimer
* Jared Mauch: >> On Nov 19, 2016, at 9:13 PM, Frank Bulk wrote: >> >> My google fu is failing me, but I believe there was a NANOG posting a year >> or two ago that mentioned that if the top x providers would >> implement BCP 38 >> then y% of the traffic (or Internet) would be de-spoofed. The p

Re: BCP 38 coverage if top x providers ...

2017-03-24 Thread Florian Weimer
* Laurent Dumont: > Wouldn't you want BCP38 policies to be as close as possible to the > traffic sources? Instead of creating more "fake" traffic? Maybe as close as possible, but still without sacrificing source network attribution is sufficient. > And at the same time, partial filtering doesn'

Re: Microsoft O365 labels nanog potential fraud?

2017-03-29 Thread Florian Weimer
* Grant Taylor via NANOG: > On 03/29/2017 04:17 AM, Mel Beckman wrote: >> Thanks for the very clear explanation. I use DKIM and SPF, but didn't >> know about this corner case. I'm surprised the SPF, etc architects >> missed it, or seem to have. In any event, I seem to be getting all >> the message

Re: association between ASN and company name in ARIN region

2017-03-31 Thread Florian Weimer
* Arnold Nipper: > On 30.03.2017 17:50, Martin T wrote: > >> Is it possible to make a similar connection between AS number and >> company name in ARIN region? In other words, how do you find out that >> company is eligible to use AS number? >> > > > This doesn't work for you? > > whois -h whois.a

Re: Cloudflare 1.1.1.1 public DNS broken w/ AT&T CPE

2018-04-02 Thread Florian Weimer
* Hank Nussbacher: > Perhaps they are running all  this to shake out exactly these type of > issues?  I think that is exactly why APNIC research is called for. And return another 2**24 addresses to the global IPv4 pool eventually? That would indeed be a loadable goal.

Re: Is WHOIS going to go away?

2018-04-14 Thread Florian Weimer
* Filip Hruska: > EURID (.eu) WHOIS already works on a basis that no information about the > registrant is available via standard WHOIS. > In order to get any useful information you have to go to > https://whois.eurid.eu and make a request there. > > Seems like a reasonable solution. Why? How

Re: Is WHOIS going to go away?

2018-04-18 Thread Florian Weimer
* Filip Hruska: > On 04/14/2018 07:29 PM, Florian Weimer wrote: >> * Filip Hruska: >> >>> EURID (.eu) WHOIS already works on a basis that no information about the >>> registrant is available via standard WHOIS. >>> In order to get any usef

Re: Dutch Hotels Must Register As ISPs

2010-10-13 Thread Florian Weimer
* Wayne E. Bouchard: > Okay, if we go down that road, that makes Starbucks, Borders, a number > of restaurants, and any other place that offers publically accessible > wifi (free or otherwise) an ISP. The funny thing is that you actually want to be recognized as an ISP if you have transit traffic

Re: IPv6 Routing table will be bloated?

2010-10-26 Thread Florian Weimer
ity from not filtering at the /32 boundary, network operators will stop filtering at the /32 boundary. So this issue will likely go away pretty soon because you can use our initial assignment to gain the routing flexibility you need. -- Florian Weimer BFK edv-consulting GmbH

Re: Register.com DNS outages

2010-11-14 Thread Florian Weimer
* Brandon Kim: > Times like this, makes you curious what kind of infrastructure > register.com has? How does one protect against DDOS? You can outsource your DNS, but you better retain a server locally on your network, so that you suffer less from that particular shared toothbrush.

Re: Register.com DNS outages

2010-11-16 Thread Florian Weimer
> Anyone else get spammed from someone at Afilias? Yes, I think you were Cc:ed on the message sent to me. I find it odd that this type of advertising works. I would expect actual victims to confuse it with extortion. ("I have heard that you were under attack and suffered an outage. For a small

Re: Prefix 120.29.240.0/21

2010-11-18 Thread Florian Weimer
* Saku Ytti: > I think we really need community tool to test BGP implementations against > known/past bugs and unknown (fuzzied) bugs. Testing is the easy part. Meeting all the requirements for getting the fix rolled out on the (relevant parts of the) Internet is impossible because many ISPs hav

Re: Level 3 Communications Issues Statement Concerning Comcast's Actions

2010-11-30 Thread Florian Weimer
> > But then Comcast might have to raise prices on their customers. This way > they don't. Level 3 could do some routing tomography and make sure that Comcast receives the traffic in the most inconvenient way. -- Florian Weimer BFK edv-consulting GmbH

Re: Level 3 Communications Issues Statement Concerning Comcast's Actions

2010-11-30 Thread Florian Weimer
net. > > Oddly enough, cable channels like ESPN asking for a per-subscriber fee > from cable delivery networks like Comcast has been a mostly-scalable > model for the cable-TV arena for three or four decades now And your TV bandwidth usage doesn't count towards your mont

Re: Domain shut downs by Registrar?

2010-12-03 Thread Florian Weimer
through their registrar arm? > > They haven't had a registrar arm since they spun off Network Solutions > in 2002. I think Verisign DBMS acts as a registrar for ccTLDs. -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 te

Re: ARIN recognizes Interop for return of more than 99% of 45/8 address block

2010-12-06 Thread Florian Weimer
e which will not require proper resource management for the forseeable future. -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99

Re: Windows Encryption Software

2010-12-10 Thread Florian Weimer
* Brandon Kim: > I know windows has bitlocker, but I don't know if that is available > for Win2003? I believe EFS is available in Windows XP and Windows 2003 Server, too. Software-based solutions have the advantage that they are somewhat more testable and reviewable. If it's all in the disk, yo

Re: .gov DNSSEC operational message

2010-12-26 Thread Florian Weimer
* Jay Ashworth: > - Original Message - >> From: "Matt Larson" > >> The new KSK will not be published in an authenticated manner outside >> DNS (e.g., on an SSL-protected web page). Rather, the intended >> mechanism for trusting the new KSK is via the signed root zone: DS >> records corres

Re: US to relinquish control of Internet

2014-03-15 Thread Florian Weimer
* John R. Levine: > Let's hope you're right, but I note that the ITU isn't an > inter-governmental organization, It was able to obtain a delegation for ITU.INT, so it's inter-governmental enough in DNS terms.

Re: Requirements for IPv6 Firewalls

2014-04-19 Thread Florian Weimer
* Simon Perreault: > Le 2014-04-18 13:25, Mike Hale a écrit : >> I agree with Bill. You can poopoo NAT all you want, but it's a fact >> of most networks and will continue to remain so until you can make a >> compelling case to move away from it. > > Does that mean all IPv6 firewalls should suppor

Re: DMARC -> CERT?

2014-04-21 Thread Florian Weimer
* Christopher Morrow: > I sort of wonder if this is really just yahoo trying to use a stick to > motivate people to do the right thing? But what is the right thing here? Do we really want that *all* mailing lists must not provider "reply to sender" option to all their users? Will this list make

Re: unqualified domains, was ICANN to allow commercial gTLDs

2011-06-20 Thread Florian Weimer
domain names. -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99

Re: How long is reasonable to fix a routing issue in IPv6?

2011-07-08 Thread Florian Weimer
* Jared Mauch: > 2) is a mapped-v4 address a valid *source* address on the wire even if it's > not a valid dest? By the way, has the analogous issue involving v4 addresses from RFC 1918 space ever been settled?

Re: How long is reasonable to fix a routing issue in IPv6?

2011-07-10 Thread Florian Weimer
> On Fri, Jul 08, 2011 at 10:21:13PM +0200, Florian Weimer wrote: >> * Jared Mauch: >> >> > 2) is a mapped-v4 address a valid *source* address on the wire >> > even if it's not a valid dest? >> >> By the way, has the analogous issue involving v4

Re: NDP DoS attack

2011-07-17 Thread Florian Weimer
* Jared Mauch: > Solving a local attack is something I consider different in scope > than the current draft being discussed in 6man, v6ops, ipv6@ etc... That's not going to happen because it's a layering violation between the IETF and IEEE. It has not been solved during thirty years of IPv4 over

Re: OT: Given what you know now, if you were 21 again...

2011-07-17 Thread Florian Weimer
* Larry Stites: > Given what you know now, if you were 21 and just starting into > networking / communications industry which areas of study or > specialty would you prioritize? Law. _ NANOG mailing list NANOG@nanog.org https://mailman.nanog.org/mailman/listinfo/nanog

Re: NDP DoS attack

2011-07-17 Thread Florian Weimer
* Mikael Abrahamsson: > On Sun, 17 Jul 2011, Florian Weimer wrote: > >> In practice, the IPv4 vs IPv6 difference is that some vendors >> provide DHCP snooping, private VLANs and unicast flood protection in >> IPv4 land, which seems to provide a scalable way to build E

Re: NDP DoS attack

2011-07-17 Thread Florian Weimer
* Mikael Abrahamsson: > On Sun, 17 Jul 2011, Florian Weimer wrote: > >> Others use tunnels, PPPoE or lots of scripting, so certainly >> something can be done about it. To my knowledge, SAVI SEND is still >> at a similar stage. Pointers to vendor documentation would be &

Re: NDP DoS attack

2011-07-17 Thread Florian Weimer
* Mikael Abrahamsson: > On Sun, 17 Jul 2011, Florian Weimer wrote: > >> Interesting, thnaks. It's not the vendors I would expect, and it's >> not based on SEND (which is not surprising at all and actually a >> good thing). > > Personally I think SEND i

Re: high performance open source DHCP solution?

2011-07-25 Thread Florian Weimer
* PC: > If you're just fighting IOPS, another compromise might be using a ramdisk, > and then committing that data to storage every x seconds. In this case, it's more straightforward to remove the fsync call from dhcpd. -- Florian Weimer BFK edv-consulting

Re: high performance open source DHCP solution?

2011-07-25 Thread Florian Weimer
torage backing its database. Come on, group commits are not that difficult to implement. With them, you should be able to obtain 8 kHZ leases on a single spindle (assuming the per-client data is just a few hundred bytes), without violating the RFC requirement. -- Florian Weimer BFK

Re: iCloud - Is it going to hurt access providers?

2011-09-04 Thread Florian Weimer
* Wayne E. Bouchard: > the users will screw themselves by flooding their uplinks in which > case they will know what they've done to themselves and will largely > accept the problems for the durration With shared media networks (or insufficient backhaul capacities), congestion affects more than j

Re: Disappointing ARIN - A great advertisement for the USA ?

2011-09-16 Thread Florian Weimer
on for IP addresses | from whois.arin.net. This way, whois(1) will print useful information | and not just the useless overview. <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=174497> -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100

Re: Question on 95th percentile and Over-usage transit pricing

2011-09-23 Thread Florian Weimer
percentile functional, so it doesn't matter how the quantity that comes out of that is priced. -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99

Re: Nxdomain redirect revenue

2011-09-26 Thread Florian Weimer
less than 5% pool, the click through > rates are around 1% Is this with strict NXDOMAIN rewriting, or were existing names redirected as well? (AFAIK, most platforms do the latter, hijacking bfk.de, for example.) -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.d

Re: Botnets buying up IPv4 address space

2011-10-08 Thread Florian Weimer
* Christopher Morrow: > On Fri, Oct 7, 2011 at 3:10 PM, Arturo Servin wrote: >> >>        I agree with Benson. >> >>        In fact, for this "problem" I find irrelevant that IPv4 is running >> out. They are just looking for good reputation IP nodes. > > isn't this a short-lived problem then? I

Re: IPv6 prefixes longer then /64: are they possible in DOCSIS networks?

2011-11-29 Thread Florian Weimer
tions to use smaller > networks per cable interfaces of CMTS. As far as I understan the IPv6 address architecture, if the network prefix is longer than /64, you're not running Unicast IPv6. -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100

Re: 128.0.0.0/16 configured as martians in some routers

2011-12-06 Thread Florian Weimer
ll it result in a blackhole, or will the entire announcement be suppressed? I suspect the latter, given what we see and what Chris Adams has reported. -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-761

Re: GeekTools Whois Proxy and RIPE/RIPE-NCC

2013-01-01 Thread Florian Weimer
* Job Snijders: > In the meantime you could consider setting up an irrd[1], redirect > queries to that instance instead of whois.ripe.net, and keep it kind > of fresh by feeding it ftp://ftp.ripe.net/ripe/dbase/ripe.db.gz on a > daily basis. RIPE NCC strips all contact information from the bulk e

Re: Level3 worldwide emergency upgrade?

2013-02-06 Thread Florian Weimer
* Andrew Sullivan: > My impression is mostly that people are left feeling uncomfortable > by a massive upgrade of this sort with so little communication about > why and so on. That's a side effect of Juniper's notification policy. Perhaps someone should them take them by their word ("Security pa

Re: Cloudflare is down

2013-03-03 Thread Florian Weimer
* Constantine A. Murenin: > And how exactly do they expect end-users "clearing the DNS cache"? Do > I call AT&T, and ask them to clear their cache? Sure, and also tell them to clear their BGP cache (aka "route flap dampening"). 8-)

Re: Illegal usage of AS51888 (and PI 91.220.85.0/24) from AS42989 and AS57954 (in ukraine)

2013-05-11 Thread Florian Weimer
* Nick Hilliard: > ripe policy 2007-01 will help with this problem by ensuring that anyone who > has got PI address space will be traceable and will be paying for it (i.e. > it will appear on the holder's payment radar). I don't think there are plans to publish this information in the WHOIS datab

Re: Misconceptions, was: IPv6 RA vs DHCPv6 - The chosen one?

2011-12-29 Thread Florian Weimer
quot;, how come 99.8% of the end nodes > do just fine without it? Oh yeah.. Because there's a CPE which acts as a mediator, or the host uses some dial-up-type protocol which takes care of the IGP interaction. -- Florian Weimer BFK edv-consulting GmbH http://www.bfk.

Re: rpki vs. secure dns?

2012-04-28 Thread Florian Weimer
* Paul Vixie: > this seems late, compared to the various commitments made to rpki in > recent years. is anybody taking it seriously? The idea as such isn't new, this has been floating around for four years or more, including at least one Internet draft, draft-donnerhacke-sidr-bgp-verification-dns

Re: Operation Ghost Click

2012-04-28 Thread Florian Weimer
* Jeff Kell: > And what about the millions of users unknowingly infected with > "something else" ?? You have to start somewhere. I received a warning letter, and four or five very organizations had to cooperate in new ways to make this happen. This is certainly a welcome development, and hopefu

Re: rpki vs. secure dns?

2012-04-28 Thread Florian Weimer
* Alex Band: >> I don't know if we can get RPKI to deployment because RIPE and RIPE >> NCC have rather serious issues with it. On the other hand, there >> doesn't seem to be anything else which keeps RIRs relevant in the >> post-scarcity world, so we'll see what happens. > > Could you elaborate o

Re: rpki vs. secure dns?

2012-04-28 Thread Florian Weimer
* Alex Band: > At RIPE 63, six months ago, the RIPE NCC membership got a chance to > vote on RPKI at the general meeting. The result was that the RIPE > NCC has the green light to continue offering the Resource > Certification service, including all BGP Origin Validation related > functionality.

Re: rpki vs. secure dns?

2012-04-30 Thread Florian Weimer
* Alex Band: > All in all, for an RPKI-specific court order to be effective in > taking a network offline, the RIR would have to tamper with the > registry, inject false data and try to make sure it's not detected > so nobody applies a local override. Please keep in mind that this is what's happe

Re: Vixie warns: DNS Changer ‘blackouts’ inevitable

2012-05-28 Thread Florian Weimer
[Dnschanger substitute server operations] > One thing is clear, Paul is able to tell a great story. PR for ISC is somewhat limited, it's often attributed to the FBI: | The effort, scheduled to begin this afternoon, is designed to let | those people know that their Internet connections will stop

Re: DNSChanger Prefixes are re-allocated and advertised ...

2012-08-11 Thread Florian Weimer
* Barry Greene: > FYI - Two prefixes from the DNS Changer/Rover Digital take down have > been re-allocated. One of the prefixes - 85.255.112.0/20 - was > advertised Friday morning. There is a blog post with some of the > details here: Wow, that was fast. So the police order actually made sense a

Re: DNS caches that support partitioning ?

2012-10-14 Thread Florian Weimer
* John Levine: > Are there DNS caches that allow you to partition the cache for > subtrees of DNS names? That is, you can say that all entries from > say, in-addr.arpa, are limited to 20% of the cache. You can build something like that using forwarders and most DNS caches. But it won't result i

Internet-wide port scans

2012-10-15 Thread Florian Weimer
Are there somewhat reputable service providers for Internet-wide TCP port scans? What's the typical rate per TCP port? (I'm interested in rather obscure services whose identification may need additional probing, and this data is unlikely on file already.) A full scan needs just 0.5 TB of data pe

Re: Marriott wifi blocking

2014-10-05 Thread Florian Weimer
* Jay Ashworth: > It is OK for an enterprise wifi system to make this sort of attack > *on rogue APs which are trying to pretend to be part of it (same > ESSID). What if the ESSID is "Free Internet", or if the network is completely open? Does it change things if you have data that shows your cus

Re: How our young colleagues are being educated....

2014-12-22 Thread Florian Weimer
* Valdis Kletnieks: > On Mon, 22 Dec 2014 04:13:42 -0500, Javier J said: > >> student graduates. They are teaching classful routing and skimming over >> CIDR. Is this indicative of the state of our education system as a whole? > > Did the standard packaged Cisco curriculum finally drop mention of

Re: Anyone from Cloudflare ? (IPv6 issue)

2014-12-27 Thread Florian Weimer
* Brandon Applegate: > Otherwise - if anyone could share a way to get to clue @Cloudflare I > would greatly appreciate it. I put a request in through the web > support front door, but I got back about what I expected. Did you receive a reply? I tried to notify security@ about some issue, but ne

Re: Is it normal for your provider to withhold BGP peering info until the night of the cut?

2016-01-21 Thread Florian Weimer
* William Herrin: > On Thu, Jan 21, 2016 at 4:26 PM, c b wrote: >> We have 4 full-peering providers between two data centers. Our >> accounting people did some shopping and found that there was >> a competitor who came in substantially lower this year and >> leadership decided to swap our most ex

Re: Why the US Government has so many data centers

2016-03-12 Thread Florian Weimer
* Mark T. Ganzer: > Note that I an not answering in any sort of "official" capacitybut > I will instead ask this for your consideration: Do servers in "test, > stage, development, or any other environment" really need to have the > same environmental, power and connectivity requirements that

Re: Why the US Government has so many data centers

2016-03-14 Thread Florian Weimer
* Sean Donelan: > When you say "data center" to an ordinary, average person or reporter; > they think of big buildings filled with racks of computers. Not a > lonely server sitting in a test lab or under someone's desk. I suspect part of the initiative is to get rid of that mindset, which leads

Re: Android (lack of) support for DHCPv6

2015-06-10 Thread Florian Weimer
* Lorenzo Colitti: > I think what I said is that supporting DHCPv6-only networks will eventually > force OS manufacturers to implement IPv6 NAT. This is because there are > many features inside a mobile OS that require multiple IP addresses. On many networks, there will be fairly tight limits on

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