Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-27 Thread Owen DeLong
On Mar 26, 2014, at 4:25 PM, Luke S. Crawford l...@prgmr.com wrote: On 03/26/2014 03:49 PM, Matt Palmer wrote: On Wed, Mar 26, 2014 at 10:55:03AM -0700, Luke S. Crawford wrote: There are many ways to skin this cat; stateless autoconfig looks like it mostly works, but privacy extensions seem

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-27 Thread Owen DeLong
On Mar 26, 2014, at 5:50 PM, Chuck Anderson c...@wpi.edu wrote: On Wed, Mar 26, 2014 at 06:52:53PM -0500, Timothy Morizot wrote: On Mar 26, 2014 6:27 PM, Luke S. Crawford l...@prgmr.com wrote: My original comment and complaint, though, was in response to the assertion that DHCPv6 is as

Re: misunderstanding scale

2014-03-27 Thread Matthias Leisi
On Thu, Mar 27, 2014 at 6:17 AM, Owen DeLong o...@delong.com wrote: It only takes a single entry if you do not store /128s but that /64. Yes, RBL lookups do not currently know how to handle this, but there are a couple of good proposals around on how to do it. Then the spammers will grab

Re: misunderstanding scale

2014-03-27 Thread Chip Marshall
On 2014-03-26, Owen DeLong o...@delong.com sent: Then the spammers will grab /48s instead of /64s. Lather, rinse, repeat. Admittedly, /48s are only 65,536 RBL entries per, but I still think that address-based reputations are a losing battle in an IPv6 world unless we provide some way for

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-27 Thread Luke S. Crawford
On 03/26/2014 11:14 PM, Owen DeLong wrote: Why not just use private VLAN layer 2 controls for the privacy you describe? The technology I know of is what cisco calls 'protected ports' - My understanding is that those simply mean you can't pass traffic to or from other 'protected ports' - I

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-27 Thread Luke S. Crawford
It might make sense to just give everyone their own vlan and their own /64; that would, of course, bring its own problems and complexities (namely that I've gotta have the capability to deal with more customers than I can have native vlans - not impossible to get around, but significant

Re: misunderstanding scale

2014-03-27 Thread Barry Shein
On March 26, 2014 at 22:17 o...@delong.com (Owen DeLong) wrote: Then the spammers will grab /48s instead of /64s. Lather, rinse, repeat. Hang on, do spammers grab address blocks? Ok, I'm sure it happens, this is not an existence proof. But is that really a significant characterization of

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-27 Thread Jack Bates
On 3/27/2014 12:19 PM, Luke S. Crawford wrote: This is a very common problem for dedicated hosting providers (and why I give my dedicated hosts a vlan and a routed subnet, wasting IPv4.) Implement what some DSL access providers do. Unnumbered interfaces with /32 routing to the vlan. The

Re: misunderstanding scale

2014-03-26 Thread Matthias Leisi
On Wed, Mar 26, 2014 at 6:31 AM, Owen DeLong o...@delong.com wrote: OTOH, a spammer with a single /64, pretty much the absolute minimum IPv6 block, has more than 18 quintillion addresses and there's not a computer on the planet with enough memory (or probably not even enough disk space) to

Re: misunderstanding scale, SMTP edition

2014-03-26 Thread John Levine
OTOH, a spammer with a single /64, pretty much the absolute minimum IPv6 block, has more than 18 quintillion addresses and there�s not a computer on the planet with enough memory (or probably not even enough disk space) to store that block list. Sometimes scale is everything. host-based

Re: misunderstanding scale

2014-03-26 Thread John Levine
It only takes a single entry if you do not store /128s but that /64. Yes, RBL lookups do not currently know how to handle this, but there are a couple of good proposals around on how to do it. Sigh. See previous note on wny aggregating on /64 won't work. This would also reduce the risks from

Re: misunderstanding scale, SMTP edition

2014-03-26 Thread Jack Bates
On 3/26/2014 12:09 PM, John Levine wrote: OTOH, a spammer with a single /64, pretty much the absolute minimum IPv6 block, has more than 18 quintillion addresses and there�s not a computer on the planet with enough memory (or probably not even enough disk space) to store that block list.

Re: misunderstanding scale, SMTP edition

2014-03-26 Thread Lamar Owen
On 03/26/2014 01:09 PM, John Levine wrote: Quite right. If I were a spammer or an ESP who wanted to listwash, I could easily use a different IP addres for every single message I sent. R's, John Week before last I saw this in great detail, with nearly 100,000 messages sent to our users per day

Re: misunderstanding scale, SMTP edition

2014-03-26 Thread Tony Finch
John Levine jo...@iecc.com wrote: If I were a spammer or an ESP who wanted to listwash, I could easily use a different IP addres for every single message I sent. Until mail servers start rate-limiting the number of different addresses that are used :-) You can do something like the following

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Luke S. Crawford
On 03/24/2014 06:18 PM, Owen DeLong wrote: DHCPv6 is no less robust in my experience than DHCPv4. ARP and ND have mostly equivalent issues. This depends a lot on what you mean by 'robust' Now, I have dealt with NAT, and I see IPv6 as a technology with the potential to make my life less

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Jack Bates
On 3/26/2014 12:55 PM, Luke S. Crawford wrote: However, DHCPv6 isn't anywhere near as useful for me, as someone who normally deals with IPs that don't change, as DHCPv4 is. My favorite is the RA thing. Years ago I decided that stupid DSLAMs were better than smart ones, so I generally

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Mohacsi Janos
On Wed, 26 Mar 2014, Luke S. Crawford wrote: On 03/24/2014 06:18 PM, Owen DeLong wrote: DHCPv6 is no less robust in my experience than DHCPv4. ARP and ND have mostly equivalent issues. This depends a lot on what you mean by 'robust' Now, I have dealt with NAT, and I see IPv6 as a

RE: misunderstanding scale

2014-03-26 Thread Naslund, Steve
If you can figure out how to store an address and a mask you can have any size entry you want. Just like a routing table. This is not insurmountable. Steven Naslund Chicago IL OTOH, a spammer with a single /64, pretty much the absolute minimum IPv6 block, has more than 18 quintillion

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Matt Palmer
On Wed, Mar 26, 2014 at 10:55:03AM -0700, Luke S. Crawford wrote: There are many ways to skin this cat; stateless autoconfig looks like it mostly works, but privacy extensions seem to be the default in many places; outgoing IPv6 from those random addresses will trip my BCP38 filters. Your

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Luke S. Crawford
On 03/26/2014 03:49 PM, Matt Palmer wrote: On Wed, Mar 26, 2014 at 10:55:03AM -0700, Luke S. Crawford wrote: There are many ways to skin this cat; stateless autoconfig looks like it mostly works, but privacy extensions seem to be the default in many places; outgoing IPv6 from those random

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Timothy Morizot
On Mar 26, 2014 6:27 PM, Luke S. Crawford l...@prgmr.com wrote: My original comment and complaint, though, was in response to the assertion that DHCPv6 is as robust as DHCPv4. My point is that DHCPv6 does not fill the role that DHCPv4 fills, if you care about tying an IP to a MAC and you want

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Chuck Anderson
On Wed, Mar 26, 2014 at 06:52:53PM -0500, Timothy Morizot wrote: On Mar 26, 2014 6:27 PM, Luke S. Crawford l...@prgmr.com wrote: My original comment and complaint, though, was in response to the assertion that DHCPv6 is as robust as DHCPv4. My point is that DHCPv6 does not fill the role

Re: misunderstanding scale

2014-03-26 Thread Owen DeLong
On Mar 26, 2014, at 3:18 AM, Matthias Leisi matth...@leisi.net wrote: On Wed, Mar 26, 2014 at 6:31 AM, Owen DeLong o...@delong.com wrote: OTOH, a spammer with a single /64, pretty much the absolute minimum IPv6 block, has more than 18 quintillion addresses and there's not a computer on

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-26 Thread Owen DeLong
On Mar 26, 2014, at 10:55 AM, Luke S. Crawford l...@prgmr.com wrote: On 03/24/2014 06:18 PM, Owen DeLong wrote: DHCPv6 is no less robust in my experience than DHCPv4. ARP and ND have mostly equivalent issues. This depends a lot on what you mean by 'robust' Now, I have dealt with NAT,

Re: misunderstanding scale

2014-03-25 Thread Owen DeLong
On Mar 24, 2014, at 8:52 PM, George Herbert george.herb...@gmail.com wrote: On Mon, Mar 24, 2014 at 8:02 PM, Owen DeLong o...@delong.com wrote: On Mar 24, 2014, at 9:21 AM, William Herrin b...@herrin.us wrote: On Sun, Mar 23, 2014 at 11:07 PM, Naslund, Steve snasl...@medline.com

Re: misunderstanding scale

2014-03-25 Thread Mark Andrews
In message 7b6af6e9-905a-4d14-b54f-8f244afcf...@delong.com, Owen DeLong write s: On Mar 24, 2014, at 8:52 PM, George Herbert george.herb...@gmail.com wrote: On Mon, Mar 24, 2014 at 8:02 PM, Owen DeLong o...@delong.com wrote: On Mar 24, 2014, at 9:21 AM, William Herrin

Re: misunderstanding scale

2014-03-25 Thread Owen DeLong
On Mar 24, 2014, at 10:12 PM, Alexander Lopez alex.lo...@opsys.com wrote: On Mar 24, 2014, at 9:36 AM, Alexander Lopez alex.lo...@opsys.com wrote: not to mention the cost in readdressing your entire network when you change an upstream provider. Nat was a fix to a problem of lack of

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-25 Thread TJ
On Mon, Mar 24, 2014 at 9:12 PM, Bob Evans b...@fiberinternetcenter.comwrote: Thus far, IPv6 has been the Field of Dreams those of us who have built it, we know they have not yet come (the IPv6 customers). That's all this discussion is really about is when will they come. I know the

Re: misunderstanding scale

2014-03-25 Thread Jimmy Hess
On Sun, Mar 23, 2014 at 10:07 PM, Naslund, Steve snasl...@medline.comwrote: As far as printers being a more dangerous attack vector than computers, I definitely don't buy that argument. It does not change in v4 or v6. Printers are not merely attack vectors; they are targets. It only makes

Re: misunderstanding scale

2014-03-25 Thread Lee Howard
On 3/24/14 2:38 PM, William Herrin b...@herrin.us wrote: On Mon, Mar 24, 2014 at 2:23 PM, Lee Howard l...@asgard.org wrote: On 3/24/14 1:37 PM, William Herrin b...@herrin.us wrote: That would be one of those details on which smart people disagree. In this case, I think you're wrong. Modern NAT

Re: misunderstanding scale

2014-03-25 Thread Valdis . Kletnieks
On Tue, 25 Mar 2014 16:31:17 +1100, Mark Andrews said: My bet is the number needing more that a single /64 will exceed the number needing just a /64. Most phones really need two /64 for tethering and currently there are lots of kludges to work around only one being available. As a data

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-25 Thread Lee Howard
On 3/24/14 10:17 PM, Naslund, Steve snasl...@medline.com wrote: I can easily answer that one as a holder of v4 space at a commercial entity. The end user does not feel any compelling reason to move to ipv6 if they have enough v4 space. I can't give my employer a solid business case of why

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-25 Thread Lee Howard
On 3/24/14 9:12 PM, Bob Evans b...@fiberinternetcenter.com wrote: I agree with one thing herein In order for IPv6 to truly work, everyone needs to be moving towards IPv6. Yep, chicken and the egg. I agree. We built an IPv6 native network - no tunneling - no customers to speak of ...

Re: misunderstanding scale

2014-03-25 Thread Lee Howard
It is late and I am just rambling, but even with DHCP(4and6) changing IP networks is not a trivial thing. Not hard, but it will require a lot more planning than what many do today of simply changing the WAN IP address and some records in the DNS (if needed) We tried:

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-25 Thread Bob Evans
Bob Evans CTO On 3/24/14 9:12 PM, Bob Evans b...@fiberinternetcenter.com wrote: I agree with one thing herein In order for IPv6 to truly work, everyone needs to be moving towards IPv6. Yep, chicken and the egg. I agree. We built an IPv6 native network - no tunneling - no customers to

RE: misunderstanding scale

2014-03-25 Thread Naslund, Steve
Look at it this way. If I see an attack coming from behind your NAT, I'm gonna deny all traffic coming from your NAT block until you assure me you have it fixed because I have no way of knowing which host it is coming from. Now your whole network is unreachable. If you have a

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-25 Thread Lamar Owen
On 03/24/2014 09:39 PM, Paul Ferguson wrote: I'll leave it as an exercise for the remainder of... everywhere to figure out why there is resistance to v6 migration, and it isn't just because people can't be bothered. I'm sure there are numerous enterprises in the same shape I am in, with

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-25 Thread Valdis . Kletnieks
On Tue, 25 Mar 2014 09:55:21 -0400, Lee Howard said: Some of us have quite a few IPv6 customers: http://www.worldipv6launch.org/measurements/ And we see significant traffic from those users. :-) I'm actually glad to see that we're no longer on the first page of that list. ;)

Re: misunderstanding scale

2014-03-25 Thread Owen DeLong
IPv6 adds an entirely new aspect to it. Well, if you mean the entirely new aspect is a list of hex addresses instead of dotted decimal addresses I guess so. I personally would rather have a list of actual end system addresses than a list of addresses that represent a mail server and

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-25 Thread Owen DeLong
Thus far, IPv6 has been the Field of Dreams those of us who have built it, we know they have not yet come (the IPv6 customers). That's all this discussion is really about is when will they come. Some of us have quite a few IPv6 customers:

Re: misunderstanding scale

2014-03-24 Thread Valdis . Kletnieks
On Sun, 23 Mar 2014 16:21:50 -0700, Paul Ferguson said: On the other hand, there are beaucoup enterprise networks unwilling to consider to moving to v6 until there are management, control, administrative, and security issues addressed. The problem is that for many of those enterprises, the

Re: misunderstanding scale

2014-03-24 Thread Mark Tinka
On Sunday, March 23, 2014 09:35:31 PM Denis Fondras wrote: When speaking of IPv6 deployment, I routinely hear about host security. I feel like it should be stated that this is *in no way* an IPv6 issue. May the device be ULA, LLA, GUA or RFC1918-addressed, the device is at risk anyway.

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-24 Thread Mark Tinka
On Sunday, March 23, 2014 11:02:13 PM Mark Andrews wrote: Actually all you have stated in that printer vendors need to clean up their act and not that one shouldn't expect to be able to expose a printer to the world. It isn't hard to do this correctly. It also does not cost much on a per

Re: misunderstanding scale

2014-03-24 Thread Mark Tinka
On Monday, March 24, 2014 01:15:27 AM Mark Andrews wrote: And there you go putting stricter requirements on printers that you don't put on laptop, servers. None of us would put any machines on the net if they had to meet your printer's requirements. Because, at the very least, a laptop or

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-24 Thread Mark Tinka
On Monday, March 24, 2014 01:37:52 AM Timothy Morizot wrote: Yes. As I said, same general sorts of risks for the most part as in IPv4. Details differ, but same general types. My point was that it's mostly FUD to wave the flag of scary new security weaknesses with no mitigations in IPv6. It's

Re: misunderstanding scale

2014-03-24 Thread Mark Tinka
On Monday, March 24, 2014 02:41:00 AM Timothy Morizot wrote: The original assertion was that there are unaddressed security weaknesses in IPv6 itself preventing its adoption. At least that's the way I read it. And that assertion is mostly FUD. The risks have less to do with IPv6, and more to

Re: misunderstanding scale

2014-03-24 Thread Karl Auer
On Mon, 2014-03-24 at 08:38 +0200, Mark Tinka wrote: In an ideal IPv6 world, all hosts have GUA's, and in this case, host security becomes a bigger problem, because now the host is directly accessible without a NAT66 in between (we hope). The mantras from my training courses: Addressable

Re: misunderstanding scale

2014-03-24 Thread Mark Tinka
On Monday, March 24, 2014 09:00:46 AM Karl Auer wrote: The mantras from my training courses: Addressable is not the same as accessible; routable is not the same as routed. Just because you give every host a globally routable address doesn't mean you have to route them. Just because you

Re: misunderstanding scale

2014-03-24 Thread Tim Franklin
Additional support on my feeling of DO and IPv6, is DO's stance of directly not even allowing IPv6 tunnels to HE, SiXXs, or any of the other providers by specifically teliing them not to allow connections from your IPv4 address space. Say *what*? I've got HE tunnels into DO, purely because

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-24 Thread Timothy Morizot
On Mon, Mar 24, 2014 at 1:51 AM, Mark Tinka mark.ti...@seacom.mu wrote: On Monday, March 24, 2014 01:37:52 AM Timothy Morizot wrote: Yes. As I said, same general sorts of risks for the most part as in IPv4. Details differ, but same general types. My point was that it's mostly FUD to wave

Re: misunderstanding scale

2014-03-24 Thread Timothy Morizot
On Mon, Mar 24, 2014 at 1:38 AM, Mark Tinka mark.ti...@seacom.mu wrote: On Sunday, March 23, 2014 09:35:31 PM Denis Fondras wrote: When speaking of IPv6 deployment, I routinely hear about host security. I feel like it should be stated that this is *in no way* an IPv6 issue. May the device

Re: misunderstanding scale

2014-03-24 Thread Nick Hilliard
On 24/03/2014 06:47, Mark Tinka wrote: Because, at the very least, a laptop or server can run a stateless packet filter to keep out pokes at ports that may be running by default, but have no business being queried over the network. once upon a time, they didn't have host firewalls or

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 3:00 AM, Karl Auer ka...@biplane.com.au wrote: Addressable is not the same as accessible; routable is not the same as routed. Indeed. However, all successful security is about _defense in depth_. If it is inaccessible, unrouted, unroutable and unaddressable then you have

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Sun, Mar 23, 2014 at 11:07 PM, Naslund, Steve snasl...@medline.com wrote: I am not sure I agree with the basic premise here. NAT or Private addressing does not equal security. Hi Steve, It is your privilege to believe this and to practice it in the networks you operate. Many of the

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Sat, Mar 22, 2014 at 8:19 PM, Randy Bush ra...@psg.com wrote: don't believe for a moment that v6 to v4 protocol translation is any less ugly than CGN. it can be stateless You're smarter than that. -Bill -- William D. Herrin her...@dirtside.com b...@herrin.us 3005

Re: misunderstanding scale

2014-03-24 Thread Michael Thomas
On 03/24/2014 09:20 AM, William Herrin wrote: On Mon, Mar 24, 2014 at 3:00 AM, Karl Auer ka...@biplane.com.au wrote: Addressable is not the same as accessible; routable is not the same as routed. Indeed. However, all successful security is about _defense in depth_. If it is inaccessible,

Re: IPv6 Security [Was: Re: misunderstanding scale]

2014-03-24 Thread Mark Tinka
On Monday, March 24, 2014 02:42:07 PM Timothy Morizot wrote: While I don't really disagree with that statement, I'm not entirely sure what CPE firewalls and home devices have to do with enterprise deployments, the topic I was discussing. We've been actively working this for the past three

Re: misunderstanding scale

2014-03-24 Thread Mark Tinka
On Monday, March 24, 2014 02:56:13 PM Timothy Morizot wrote: NAT traversal is and has long been fairly trivial. NAT and RFC1918 provides no meaningful host protection whatsoever and never has. The only thing that limits direct access to internal networks is a stateful firewall. (Well, IPS

Re: misunderstanding scale

2014-03-24 Thread Joe Greco
On Mon, Mar 24, 2014 at 3:00 AM, Karl Auer ka...@biplane.com.au wrote: Addressable is not the same as accessible; routable is not the same as routed. Indeed. However, all successful security is about _defense in depth_. If it is inaccessible, unrouted, unroutable and unaddressable then

RE: misunderstanding scale

2014-03-24 Thread Alexander Lopez
. .. Original message From: William Herrin Date:03/24/2014 12:27 PM (GMT-05:00) To: Naslund, Steve Cc: NANOG list Subject: Re: misunderstanding scale On Sun, Mar 23, 2014 at 11:07 PM, Naslund, Steve snasl...@medline.com wrote: I am not sure I agree with the basic premise here. NAT

Re: misunderstanding scale

2014-03-24 Thread Mark Tinka
On Monday, March 24, 2014 06:02:11 PM Nick Hilliard wrote: once upon a time, they didn't have host firewalls or packet filters, which was why we ended up with: https://isc.sans.edu/diary/Survival+Time+on+the+Internet/ 4721 :-). Mark. signature.asc Description: This is a digitally signed

RE: misunderstanding scale

2014-03-24 Thread Naslund, Steve
- From: William Herrin [mailto:b...@herrin.us] Sent: Monday, March 24, 2014 11:21 AM To: Karl Auer Cc: nanog@nanog.org Subject: Re: misunderstanding scale On Mon, Mar 24, 2014 at 3:00 AM, Karl Auer ka...@biplane.com.au wrote: Addressable is not the same as accessible; routable is not the same

RE: misunderstanding scale

2014-03-24 Thread Naslund, Steve
even comes out of the box blocking inbound connections by default. Steve -Original Message- From: Mark Tinka [mailto:mark.ti...@seacom.mu] Sent: Monday, March 24, 2014 11:35 AM To: Timothy Morizot Cc: NANOG list Subject: Re: misunderstanding scale Don't disagree with you there. I'm

Re: misunderstanding scale

2014-03-24 Thread Patrick W. Gilmore
On Mar 24, 2014, at 12:21, William Herrin b...@herrin.us wrote: On Sun, Mar 23, 2014 at 11:07 PM, Naslund, Steve snasl...@medline.com wrote: I am not sure I agree with the basic premise here. NAT or Private addressing does not equal security. Many of the folks you would have deploy IPv6

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 12:28 PM, Michael Thomas m...@mtcc.com wrote: On 03/24/2014 09:20 AM, William Herrin wrote: On Mon, Mar 24, 2014 at 3:00 AM, Karl Auer ka...@biplane.com.au wrote: Addressable is not the same as accessible; routable is not the same as routed. Indeed. However, all

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 8:31 AM, Joe Greco jgr...@ns.sol.net wrote: all successful security is about _defense in depth_. If it is inaccessible, unrouted, unroutable and unaddressable then you have four layers of security. If it is merely inaccessible and unrouted you have two. Time to give

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 1:05 PM, Patrick W. Gilmore patr...@ianai.net wrote: On Mar 24, 2014, at 12:21, William Herrin b...@herrin.us wrote: Some folks WANT to segregate their networks from the Internet via a general-protocol transparent proxy. They've had this capability with IPv4 for 20

Re: misunderstanding scale

2014-03-24 Thread Joe Greco
Hi Mike, You can either press the big red button and fire the nukes or you can't, so what difference how many layers of security are involved with the Football? I say this with the utmost respect, but you must understand the principle of defense in depth in order to make competent

Re: misunderstanding scale

2014-03-24 Thread Joe Greco
On Mon, Mar 24, 2014 at 8:31 AM, Joe Greco jgr...@ns.sol.net wrote: all successful security is about _defense in depth_. If it is inaccessible, unrouted, unroutable and unaddressable then you have four layers of security. If it is merely inaccessible and unrouted you have two. Time to

Re: misunderstanding scale

2014-03-24 Thread Laszlo Hanyecz
On Mar 24, 2014, at 5:05 PM, Patrick W. Gilmore patr...@ianai.net wrote: On Mar 24, 2014, at 12:21, William Herrin b...@herrin.us wrote: On Sun, Mar 23, 2014 at 11:07 PM, Naslund, Steve snasl...@medline.com wrote: I am not sure I agree with the basic premise here. NAT or Private

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 9:25 AM, Joe Greco jgr...@ns.sol.net wrote: I say this with the utmost respect, but you must understand the principle of defense in depth in order to make competent security decisions for your organization. Smart people disagree on the details but the principle is not

RE: misunderstanding scale

2014-03-24 Thread Naslund, Steve
, March 24, 2014 12:34 PM To: Naslund, Steve Subject: Re: misunderstanding scale On 3/24/2014 12:53 PM, Naslund, Steve wrote: If they have a stateful IPv6 firewall (which they should and which most firewall vendors support), they already have what they need to prevent their internal systems from

Re: misunderstanding scale

2014-03-24 Thread Patrick W. Gilmore
On Mar 24, 2014, at 13:17 , William Herrin b...@herrin.us wrote: On Mon, Mar 24, 2014 at 1:05 PM, Patrick W. Gilmore patr...@ianai.net wrote: On Mar 24, 2014, at 12:21, William Herrin b...@herrin.us wrote: Some folks WANT to segregate their networks from the Internet via a general-protocol

Re: misunderstanding scale

2014-03-24 Thread Valdis . Kletnieks
On Mon, 24 Mar 2014 13:13:43 -0400, William Herrin said: You'd expect folks to give up two layers of security at exactly the same time as they're absorbing a new network protocol with which they're yet unskilled? Does that make sense to you from a risk-management standpoint? The problem is

Re: misunderstanding scale

2014-03-24 Thread Lee Howard
On 3/24/14 1:37 PM, William Herrin b...@herrin.us wrote: On Mon, Mar 24, 2014 at 9:25 AM, Joe Greco jgr...@ns.sol.net wrote: I say this with the utmost respect, but you must understand the principle of defense in depth in order to make competent security decisions for your organization.

Re: misunderstanding scale

2014-03-24 Thread Timothy Morizot
On Mon, Mar 24, 2014 at 11:36 AM, Alexander Lopez alex.lo...@opsys.comwrote: not to mention the cost in readdressing your entire network when you change an upstream provider. Nat was a fix to a problem of lack of addresses, however, the use of private address space 10/8, 192.168/16 has

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 2:23 PM, Lee Howard l...@asgard.org wrote: On 3/24/14 1:37 PM, William Herrin b...@herrin.us wrote: That would be one of those details on which smart people disagree. In this case, I think you're wrong. Modern NAT superseded the transparent proxies and bastion hosts of the

Re: misunderstanding scale

2014-03-24 Thread Timothy Morizot
On Mon, Mar 24, 2014 at 8:25 AM, Joe Greco jgr...@ns.sol.net wrote: Bill Herrin wrote: I say this with the utmost respect, but you must understand the principle of defense in depth in order to make competent security decisions for your organization. Smart people disagree on the details

Re: misunderstanding scale

2014-03-24 Thread Timothy Morizot
On Mon, Mar 24, 2014 at 12:37 PM, William Herrin b...@herrin.us wrote: What sort of traction are you getting from that argument when you speak with enterprise security folks? Actually, I never even had to make the argument in our enterprise. Our cybersecurity organization already knew that

Re: misunderstanding scale

2014-03-24 Thread Joe Greco
it involves two layers of heterogeneous firewalls (protecting multiple ^ Ugh. Knew I was forgetting something. ... JG -- Joe Greco - sol.net Network Services - Milwaukee, WI - http://www.sol.net We call it the 'one bite at the apple' rule. Give me one

RE: misunderstanding scale

2014-03-24 Thread Naslund, Steve
I doubt that many residential customers will be readdressing their networks except for us geeks. Most of them are going to be using CPE that grabs an address via DHCP for the WAN interface and then does an IPv6 DHCP PD with the /64 it gets from the service provider. The customer sees nothing

Re: misunderstanding scale

2014-03-24 Thread Tore Anderson
* William Herrin On Sat, Mar 22, 2014 at 8:19 PM, Randy Bush ra...@psg.com wrote: don't believe for a moment that v6 to v4 protocol translation is any less ugly than CGN. it can be stateless You're smarter than that. https://tools.ietf.org/html/rfc6145

RE: misunderstanding scale

2014-03-24 Thread Eric Wieling
@nanog.org Subject: Re: misunderstanding scale On Mon, Mar 24, 2014 at 8:31 AM, Joe Greco jgr...@ns.sol.net wrote: all successful security is about _defense in depth_. If it is inaccessible, unrouted, unroutable and unaddressable then you have four layers of security. If it is merely inaccessible

Re: misunderstanding scale

2014-03-24 Thread Michael Thomas
On 3/24/14 10:08 AM, William Herrin wrote: On Mon, Mar 24, 2014 at 12:28 PM, Michael Thomas m...@mtcc.com wrote: On 03/24/2014 09:20 AM, William Herrin wrote: On Mon, Mar 24, 2014 at 3:00 AM, Karl Auer ka...@biplane.com.au wrote: Addressable is not the same as accessible; routable is not the

Re: misunderstanding scale

2014-03-24 Thread Randy Bush
https://tools.ietf.org/html/rfc6145 https://tools.ietf.org/html/draft-ietf-softwire-map-t-05 https://tools.ietf.org/html/draft-anderson-siit-dc-00 derived from 6346 randy

Re: misunderstanding scale

2014-03-24 Thread Michael Thomas
On 3/24/14 10:37 AM, valdis.kletni...@vt.edu wrote: On Mon, 24 Mar 2014 13:13:43 -0400, William Herrin said: You'd expect folks to give up two layers of security at exactly the same time as they're absorbing a new network protocol with which they're yet unskilled? Does that make sense to you

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 2:56 PM, Tore Anderson t...@fud.no wrote: * William Herrin On Sat, Mar 22, 2014 at 8:19 PM, Randy Bush ra...@psg.com wrote: don't believe for a moment that v6 to v4 protocol translation is any less ugly than CGN. it can be stateless You're smarter than that.

Re: misunderstanding scale

2014-03-24 Thread Randy Bush
And all those IPv4 addresses for the 1:1 translation required by the stateless version are coming from where exactly? maybe you should read the documents

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 1:37 PM, valdis.kletni...@vt.edu wrote: On Mon, 24 Mar 2014 13:13:43 -0400, William Herrin said: You'd expect folks to give up two layers of security at exactly the same time as they're absorbing a new network protocol with which they're yet unskilled? Does that make

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 6:46 PM, Randy Bush ra...@psg.com wrote: And all those IPv4 addresses for the 1:1 translation required by the stateless version are coming from where exactly? maybe you should read the documents I did. They were abstruse beyond even the normal level for RFCs but I made

Re: misunderstanding scale

2014-03-24 Thread Randy Bush
You propose stateless NAT64 as an viable alternative to CGN. where do i do that? The question stands: where are you planning to get the extra IPv4 addresses for the static 1:1 mapping? maybe look at the +P in A+P randy

Re: misunderstanding scale

2014-03-24 Thread William Herrin
On Mon, Mar 24, 2014 at 7:37 PM, Randy Bush ra...@psg.com wrote: You propose stateless NAT64 as an viable alternative to CGN. where do i do that? Nick Hilliard: don't believe for a moment that v6 to v4 protocol translation is any less ugly than CGN. Your reply (verbosity added for clarity):

Re: misunderstanding scale

2014-03-24 Thread Randy Bush
You propose stateless NAT64 as an viable alternative to CGN. ^^^ where do i do that? Nick Hilliard ahh. i see your error. i am not nick hilliard. he's the cute one. Your reply (verbosity added for clarity): [Sure it is! Unlike where folks solve their problem with CGN, v6 to v4

Re: misunderstanding scale

2014-03-24 Thread Warren Bailey
FYI He tells everyone they¹re cute. Don¹t buy his tricks, he doesn¹t call back the next morning. ;) Ps. Take it easy on each other. It¹s the beginning of spring.. Head outside.. Go have a beer.. Smoke a joint.. What I am getting at is.. It¹s possible you guys should relax and realize that in the

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-24 Thread Owen DeLong
In order for IPv6 to truly work, everyone needs to be moving towards IPv6. Maintaining dual protocols for the entire internet is problematic, wasteful, and horribly inefficient at best. Bottom line, the internet outgrew IPv4 almost 30 years ago and we’ve been using various hacks like NAT as a

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-24 Thread Owen DeLong
Let’s assume, for a moment, that there are 32 /8s out there that could be reclaimed. Let’s further assume that renumbering out of a /8 takes, on average, about 18 months. (That’s moving almost 1,000,000 customers per month on average, potentially). Even if we got all 32 /8 equivalents back

Re: misunderstanding scale

2014-03-24 Thread Owen DeLong
On Mar 22, 2014, at 10:16 AM, Nick Hilliard n...@foobar.org wrote: On 22/03/2014 16:29, Doug Barton wrote: It is a mistake to believe that the only reason to add IPv6 to your network is size. Adding IPv6 to your network _now_ is the right decision because at some point in the not-too-distant

Re: misunderstanding scale

2014-03-24 Thread hslabbert
To: Timothy Morizot Cc: NANOG list Subject: Re: misunderstanding scale Don't disagree with you there. I'm saying many an enterprise (small and large) as well as homes operate this way. There is a lot of unlearning to do. The whole issue is that a number of enterprises may only feel safe

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-24 Thread Owen DeLong
IPv4 has already been trading around $10/address. So the prices quoted a while back don’t make much sense to me. Further, could you please quantify “vast”? How many /8 equivalents in a “vast number”? Until they ran out, APNIC was issuing approximately 1.5 /8s per month. How long, exactly, do

Re: misunderstanding scale (was: Ipv4 end, its fake.)

2014-03-24 Thread Owen DeLong
On Mar 22, 2014, at 12:36 PM, William Herrin b...@herrin.us wrote: On Sat, Mar 22, 2014 at 11:54 AM, Justin M. Streiner strei...@cluebyfour.org wrote: On Sat, 22 Mar 2014, William Herrin wrote: On Sat, Mar 22, 2014 at 10:33 AM, Justin M. Streiner strei...@cluebyfour.org wrote: All of

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