Re: [IPsec] Traffic Visibility Future

2010-01-08 Thread Bhatia, Manav (Manav)
I never said that there are service providers clamouring for WESP. You brought up a point about EGP routing protocols, and I just replied to that. Cheers, Manav > -Original Message- > From: Dan Harkins [mailto:dhark...@lounge.org] > Sent: Friday, January 08, 2010 10.42 AM > To: Bhatia

Re: [IPsec] Traffic visibility - consensus call

2010-01-08 Thread Tero Kivinen
[I finally managed to catch up all the tons of emails to the ipsec-list, so now I can finally reply to few of them.] Brian Swander writes: > In terms of your chart, that means that the only allowed > combinations (of this scenario) are: > > CaseNodes FlowS 1 S 2 > 1 N-N I

Re: [IPsec] Traffic visibility - consensus call

2010-01-08 Thread Tero Kivinen
Grewal, Ken writes: > Some people have jumped to conclusions that because we want to > differentiate between encrypted and non-encrypted traffic by > explicitly signaling in the packet, that WESP is now a replacement > for ESP. > > THIS IS NOT THE CASE AND IT WAS NEVER THE INTENT! That is true,

Re: [IPsec] Traffic visibility - consensus call

2010-01-08 Thread Nicolas Williams
On Thu, Jan 07, 2010 at 06:10:10PM -0600, Nicolas Williams wrote: > On Tue, Jan 05, 2010 at 12:27:26AM +0200, Yaron Sheffer wrote: > > - The current draft > > (http://tools.ietf.org/html/draft-ietf-ipsecme-traffic-visibility-11) > > defines the ESP trailer's ICV calculation to include the WESP head

Re: [IPsec] Traffic visibility - consensus call

2010-01-08 Thread Brian Swander
In the absolutely most generic case, yes. And heuristics absolutely have their place. However, my proposal clearly allows for eliminating all heuristics with policy constraints. As you well know, you can eliminate the heuristics you describe by choosing the same algorithm so intermediaries d

Re: [IPsec] Traffic Visibility Future

2010-01-08 Thread Joseph Tardo
-Original Message- Also, anything QoS related should really happen outside ESP anyways. Nico -- In an ideal world maybe. Sometimes the netwwork needs to mark traffic at the edge switch but doesn't 'trust' the endpoint to do it. So typically it would be done with policy rules. Thank

[IPsec] No UDP encapsulation with IKEv2 over port 4500?

2010-01-08 Thread Dan McDonald
I read this sentence in IKEv2bis... If NAT-T is supported (that is, if NAT_DETECTION_*_IP payloads were exchanged during IKE_SA_INIT), all devices MUST be able to receive and process both UDP encapsulated and non-UDP encapsulated packets at any time. ... and thought of my own implemen

Re: [IPsec] Traffic Visibility Future

2010-01-08 Thread Nicolas Williams
On Fri, Jan 08, 2010 at 11:14:06AM -0800, Joseph Tardo wrote: > -Original Message- > > Also, anything QoS related should really happen outside ESP anyways. > > > In an ideal world maybe. Sometimes the netwwork needs to mark traffic > at the edge switch but doesn't 'trust' the endpoint

Re: [IPsec] No UDP encapsulation with IKEv2 over port 4500?

2010-01-08 Thread Scott C Moonen
Dan, I think the intent of that text was to read "non-UDP encapsulated" as "non-UDP encapsulated [ESP]". I.e., it is not saying you should support both UDP-encapsulation and vanilla UDP on port 4500; it is saying that you should support UDP encapsulation for an ESP tunnel even if a NAT was not

Re: [IPsec] Traffic Visibility Future

2010-01-08 Thread Bhatia, Manav (Manav)
> > > > In an ideal world maybe. Sometimes the netwwork needs to > mark traffic > > at the edge switch but doesn't 'trust' the endpoint to do it. So > > typically it would be done with policy rules. > > We're talking about making changes to the end nodes anyways, > so why not > make them handle

Re: [IPsec] No UDP encapsulation with IKEv2 over port 4500?

2010-01-08 Thread Dan McDonald
On Fri, Jan 08, 2010 at 04:53:25PM -0500, Scott C Moonen wrote: > Dan, I think the intent of that text was to read "non-UDP encapsulated" as > "non-UDP encapsulated [ESP]". I.e., it is not saying you should support > both UDP-encapsulation and vanilla UDP on port 4500; it is saying that you > s

Re: [IPsec] No UDP encapsulation with IKEv2 over port 4500?

2010-01-08 Thread Scott C Moonen
> ESP isn't a tunnelling protocol... ;) You meant an ESP SA, right? Er, yes. :) > OTOH, what is an ESP clarification doing in IKEv2? IIRC, there was a request at one point to allow for ESP and UDP-encap ESP to be completely interchangeable for any given packet at the discretion of the sender.