Distributed-Denial-of-Service Open Threat Signaling (DOTS) Agent Discovery
draft-ietf-dots-server-discovery-15

Document Type Active Internet-Draft (dots WG)
Authors Mohamed Boucadair  , Tirumaleswar Reddy.K 
Last updated 2020-11-20 (latest revision 2020-11-15)
Replaces draft-boucadair-dots-server-discovery
Stream IETF
Intended RFC status Proposed Standard
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Reviews
Stream WG state Submitted to IESG for Publication (wg milestone: Nov 2019 - DOTS Server Discover... )
Document shepherd Valery Smyslov
Shepherd write-up Show (last changed 2020-02-07)
IESG IESG state RFC Ed Queue
Consensus Boilerplate Yes
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Responsible AD Benjamin Kaduk
Send notices to Valery Smyslov <valery@smyslov.net>
IANA IANA review state IANA OK - Actions Needed
IANA action state RFC-Ed-Ack
IANA expert review state Expert Reviews OK
IANA expert review comments All registrations approved.
RFC Editor RFC Editor state EDIT
Details
DOTS                                                        M. Boucadair
Internet-Draft                                                    Orange
Intended status: Standards Track                                T. Reddy
Expires: May 19, 2021                                             McAfee
                                                       November 15, 2020

    Distributed-Denial-of-Service Open Threat Signaling (DOTS) Agent
                               Discovery
                  draft-ietf-dots-server-discovery-15

Abstract

   This document specifies mechanisms to configure Distributed Denial of
   Service Open Threat Signaling (DOTS) clients with their DOTS servers.
   The discovery procedure also covers the DOTS Signal Channel Call
   Home.  Knowing the appropriate DOTS server for a given location can
   be useful to engage mitigation actions even in cases where the DOTS
   client cannot localize the attack, but only knows that some resources
   are under attack and that help is needed.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 19, 2021.

Copyright Notice

   Copyright (c) 2020 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect

Boucadair & Reddy         Expires May 19, 2021                  [Page 1]
Internet-Draft   DOTS Server/Call Home Client Discovery    November 2020

   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Why Multiple Discovery Mechanisms?  . . . . . . . . . . . . .   5
   4.  DOTS Discovery Procedure  . . . . . . . . . . . . . . . . . .   6
   5.  DHCP Options for DOTS Agent Discovery . . . . . . . . . . . .   8
     5.1.  DHCPv6 DOTS Options . . . . . . . . . . . . . . . . . . .   9
       5.1.1.  Format of DOTS Reference Identifier Option  . . . . .   9
       5.1.2.  Format of DOTS Address Option . . . . . . . . . . . .  10
       5.1.3.  DHCPv6 Client Behavior  . . . . . . . . . . . . . . .  11
     5.2.  DHCPv4 DOTS Options . . . . . . . . . . . . . . . . . . .  11
       5.2.1.  Format of DOTS Reference Identifier Option  . . . . .  11
       5.2.2.  Format of DOTS Address Option . . . . . . . . . . . .  12
       5.2.3.  DHCPv4 Client Behavior  . . . . . . . . . . . . . . .  13
   6.  Discovery using Service Resolution  . . . . . . . . . . . . .  14
   7.  DNS Service Discovery . . . . . . . . . . . . . . . . . . . .  17
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  17
     8.1.  DHCP  . . . . . . . . . . . . . . . . . . . . . . . . . .  18
     8.2.  Service Resolution  . . . . . . . . . . . . . . . . . . .  19
     8.3.  DNS Service Discovery . . . . . . . . . . . . . . . . . .  19
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  19
     9.1.  The Service Name and Transport Protocol Port Number
           Registry  . . . . . . . . . . . . . . . . . . . . . . . .  19
     9.2.  DHCPv6 Options  . . . . . . . . . . . . . . . . . . . . .  20
     9.3.  DHCPv4 Options  . . . . . . . . . . . . . . . . . . . . .  21
     9.4.  Application Service & Application Protocol Tags . . . . .  21
       9.4.1.  DOTS Application Service Tag Registration . . . . . .  21
       9.4.2.  DOTS Call Home Application Service Tag Registration .  21
       9.4.3.  signal.udp Application Protocol Tag Registration  . .  22
       9.4.4.  signal.tcp Application Protocol Tag Registration  . .  22
       9.4.5.  data.tcp Application Protocol Tag Registration  . . .  22
   10. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  22
   11. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  23
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .  23
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