Dear Yue,

I see your point.

Please refer to the "Information Model of NSFs Capabilities" document (draft-ietf-i2nsf-capability-02). To the best of my knowledge, data models will be (derived from and) made coherent with the Information Model as soon as it will be (close to) final.


Regards,
Aldo




On 17/07/2018 14:12, Dongyue (Yue, Network Integration Technology Research Dept) wrote:
Hi Diego and Aldo,

Thanks for your comments. I think generally we have got your idea. But 
personally I still have a question:

In the I2NSF capability data model [draft-ietf-i2nsf-capability-data-model-01], 
the content security capability part contains the antiviurs, ips, ids, and etc. 
capabilities. But in your comment, such kind of functions (e.g. ips, ids, etc.) 
are repackaged group of security capabilities. So I confused with it.

Regards,
Yue


-----邮件原件-----
发件人: Cataldo Basile [mailto:[email protected]]
发送时间: 2018年7月17日 17:34
收件人: Diego R. Lopez <[email protected]>; Xialiang (Frank, Network Integration 
Technology Research Dept) <[email protected]>; Dongyue (Yue, Network Integration 
Technology Research Dept) <[email protected]>; [email protected]
主题: Re: [I2nsf] 答复: 转发: New Version Notification for 
draft-dong-i2nsf-asf-config-00.txt

I completely agree with Diego.

The purpose of a capability model is to 'understand each other' with
precise, thus more granular, information that allows avoiding any
ambiguity. Hence, a controller could automatically decide how to use NSFs.

It is pretty known that marketing units repackage NSFs with brand new
names that are good for selling software and equipment, but increase
confusion for technical people (and for automatic systems as well).

Imagine a scenario where a company make an epsilon modification to an
IDS and sells it as a Smart IDS (SIDS). An automatic system must
understand what 'Smart' means and what a SIDS can do that an IDS cannot
actually do already. And now think about a concrete case, the IPS...

So, in my opinion, flat enumeration of capabilities is the only way to
deal with issue (different fields, like the actions that enforce, the
flows/traffic they can identify, the events they react to, etc., i.e.,
the capability model we are authoring).

Regards,
Aldo


On 16/07/2018 15:53, Diego R. Lopez wrote:
If you associate a capability action (let's say collect-attack-evidence-enable) 
with a particular kind of device (as part of the antivirus branch) I would not 
be able to declare or use that particular capability unless the provider has 
stated the function is an antivirus, and therefore consider all the other 
capabilities for the antivirus. What is more, this prevents to have a common 
semantics for something like collect-attack-evidence-enable if you have to 
declare it under other branches. My understanding is that we have to deal with 
flat enumeration of capabilities, but I might be completely mistaken from the 
beginning...

Be goode,

--
"Esta vez no fallaremos, Doctor Infierno"

Dr Diego R. Lopez
Telefonica I+D
https://www.linkedin.com/in/dr2lopez/

e-mail: [email protected]
Tel:         +34 913 129 041
Mobile:  +34 682 051 091
----------------------------------

On 16/07/2018, 08:55, "Xialiang (Frank, Network Integration Technology Research 
Dept)" <[email protected]> wrote:

      Hi Diego,
      Thanks for your quick comments. In general, we agree with you that they 
should be as the various capabilities to be applied.
      But could you please clarify more about what is the difference to be as 
capability model vs yang grouping model definition?

      Thanks!

      B.R.
      Frank

      -----邮件原件-----
      发件人: Diego R. Lopez [mailto:[email protected]]
      发送时间: 2018年7月16日 20:00
      收件人: Dongyue (Yue, Network Integration Technology Research Dept) 
<[email protected]>; [email protected]
      抄送: Xialiang (Frank, Network Integration Technology Research Dept) 
<[email protected]>
      主题: Re: [I2nsf] 转发: New Version Notification for 
draft-dong-i2nsf-asf-config-00.txt

      Hi,

      My general comment to these definitions (and others that may come) is that we should try to deal with 
them in terms of capabilities, and not in terms of groupings associated to current (virtual or physical) 
devices. As an example, rather than thinking of "antivirus", I'd propose to think about 
"content analysis" or "content scanning" capabilities.

      Be goode,

      --
      "Esta vez no fallaremos, Doctor Infierno"

      Dr Diego R. Lopez
      Telefonica I+D
      https://www.linkedin.com/in/dr2lopez/

      e-mail: [email protected]
      Tel:         +34 913 129 041
      Mobile:  +34 682 051 091
      ----------------------------------

      On 16/07/2018, 07:02, "I2nsf on behalf of Dongyue (Yue, Network Integration 
Technology Research Dept)" <[email protected] on behalf of [email protected]> 
wrote:

          Dear all,

          The action part of the NSF-facing data model listed many security 
function actions, such as antivirus, ips, ids, and etc, that will be applid on 
traffic flow when the event and condition clauses are satisfied. However, I 
think it only list the corresponding names. And each type of the secuity 
function action (i.e. ips, antivirus, etc.) should have many selective profiles 
that could be executed. Therefore, we proposed a draft, 
draf-dong-i2nsf-asf-config-00, that specifies the configuration detail for each 
of the security function profile settings. And the NSF-facing data model is 
able to reference these profiles.

          This -00 version of draft only contains the antivirus, ips, and 
anti-ddos profiles.

          * Antivirus: The following figure shows the top-level tree diagram 
for antivirus profile settings. Each profile contains the configuration data 
for detection methods, detection configurations, signature exceptions, 
application exceptions, and the white lists configruations.

              +--rw antivirus
                 +--rw antivirus-enable
                 +--rw profiles
                    +--rw profile *  [name]
                    +--rw name
                    +--rw description
                    +--rw collect-attack-evidence-enable
                    +--rw sandbox-detection-enable
                    +--rw heuristic-detection-enable
                    +--rw detect*  [protocol]
                    |  . . .
                    +--rw exception-application* [application-name]
                    |  . . .
                    +--rw exception-signature*  [signature-id]
                    |  . . .
                    +--rw white-list
                       . . .

          * IPS: The following figure shows the top-level tree diagram for IPS 
profile settings. Each profile contains the configuration data for signature 
sets, signature exceptions, and protocol control.

              +--rw ips-config
                 +--rw ips-enable
                 +--rw profiles
                    +--rw profile*  [name]
                    +  . . .
                    +--rw domain-filter
                    |  . . .
                    +--rw signature-sets
                    |  . . .
                    +--rw exception-signatures
                    |  . . .
                    +--rw protocol-control
                       +--rw dns-check
                       | . . .
                       +--rw http-check
                         . . .

          * Anti-ddos: The anti-ddos part contains the configruation of the 
alter rate and/or maximum speed/bandwidth to trigger the prevention functions 
for each type of DDoS attacks.

          For more details, please review the draft: 
https://tools.ietf.org/html/draft-dong-i2nsf-asf-config-00

          We would like to obatain comments from i2nsf WG. Is this draft 
valuable as an individual draft and will the NSF-facing data model reference 
these profiles?
          We will appreciate all the comments from I2NSF WG.

          Best Regards,
          Yue

          -----邮件原件-----
          发件人: I2nsf [mailto:[email protected]] 代表 Dongyue (Yue, Network 
Integration Technology Research Dept)
          发送时间: 2018年6月30日 15:11
          收件人: [email protected]
          抄送: Xialiang (Frank, Network Integration Technology Research Dept) 
<[email protected]>
          主题: [I2nsf] 转发: New Version Notification for 
draft-dong-i2nsf-asf-config-00.txt

          Dear All,

          We have submitted a new draft about the nsf-facing interface data 
model for configuration of some advanced security functions including 
antivirus, antiddos, and ips. We will appreciate all comments.

          Best Regards,
          Yue

          -----邮件原件-----
          发件人: [email protected] [mailto:[email protected]]
          发送时间: 2018年6月30日 15:06
          收件人: Dongyue (Yue, Network Integration Technology Research Dept) 
<[email protected]>; Xialiang (Frank, Network Integration Technology Research Dept) 
<[email protected]>
          主题: New Version Notification for draft-dong-i2nsf-asf-config-00.txt


          A new version of I-D, draft-dong-i2nsf-asf-config-00.txt
          has been successfully submitted by Yue Dong and posted to the IETF 
repository.

          Name:draft-dong-i2nsf-asf-config
          Revision:00
          Title:Configuration of Advanced Security Functions with I2NSF 
Security Controller
          Document date:2018-06-30
          Group:Individual Submission
          Pages:29
          URL:            
https://www.ietf.org/internet-drafts/draft-dong-i2nsf-asf-config-00.txt
          Status:         
https://datatracker.ietf.org/doc/draft-dong-i2nsf-asf-config/
          Htmlized:       
https://tools.ietf.org/html/draft-dong-i2nsf-asf-config-00
          Htmlized:       
https://datatracker.ietf.org/doc/html/draft-dong-i2nsf-asf-config


          Abstract:
             This draft defines a network security function (NSF-) facing
             interface of the security controller for the purpose of configuring
             some advanced security functions.  These advanced security 
functions
             include antivirus, anti-ddos, and intrusion prevention system 
(IPS).
             The interface is presented in a YANG data model fashion and can be
             used to deploy a large amount of NSF blocks that all support above
             mentioned functions in the software defined network (SDN) based
             paradigm.




          Please note that it may take a couple of minutes from the time of 
submission until the htmlized version and diff are available at tools.ietf.org.

          The IETF Secretariat

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  • Re: [I2nsf]... Diego R. Lopez
    • Re: [I... Cataldo Basile
      • [I... Dongyue (Yue, Network Integration Technology Research Dept)
        • ... Cataldo Basile
    • [I2nsf... Xialiang (Frank, Network Integration Technology Research Dept)

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