Virtual Router Redundancy Protocol (vrrp)

NOTE: This charter is a snapshot of the . It may now be out-of-date.

Last Modified: 2009-04-02


Radia Perlman <>
Mukesh Gupta <>

Routing Area Director(s):

Stewart Bryant <>
Adrian Farrel <>

Routing Area Advisor:

Adrian Farrel <>

Mailing Lists:

General Discussion:
To Subscribe:
In Body: subscribe vrrp

Description of Working Group:

The purpose of this working group is to define and develop a standard
virtual router redundancy protocol for IPv4 and IPv6.  A virtual
router redundancy protocol is a protocol which allows several
routers on a multiaccess link to utilize the same virtual IP address.
One router will be elected as a master with the other routers acting as
backups in case of the failure of the master router.  The primary
motivation to using a virtual router redundancy protocol is that host
systems may be configured (manually or via DHCP) with a single default
gateway, rather than running an active routing protocol.  The protocol
should also support the ability to load share traffic when both routers
are up.

The goals of this working group are:

1. Define and develop a standard virtual router redundancy protocol
    for IPv4 and IPv6.

2. Develop VRRP MIB(s).

3. Separate specifications will be developed for IPv4 and IPv6.

4. Determine whether static (configuration based) load sharing is
    adequate or if some amount of dynamic load sharing is required.

5. Working group will examine security issues to determine what
    security threats it is appropriate for the VRRP protocol to
    handle and include the appropriate mechanisms in the VRRP protocol.

  6. The internet draft "Virtual Router Redundancy Protocol"
    (draft-hinden-vrrp-00.txt) will be use as the basis of virtual
    router redundancy protocol.  The working group will also consider
    other Internet-Drafts related to this topic allowing for issues
    regarding change control, security, running code, etc.

  7. Intellectual property issues regarding the technology to
      develop a virtual router redundancy protocol will be identified
      and addressed.

Goals and Milestones:

Done  Charter Working Group
Done  Issue new Internet Drafts for IPv4 version of the protocol.
Done  Review and finalize IPv4 Internet Drafts.
Done  Issue Internet Draft for IPv6 version of VRRP.
Done  Submit revised IPv4 Internet Drafts to IESG for proposed standard.
Done  Issue VRRP MIB drafts.
Done  Issue revised draft for IPv6 version of VRRP.
Done  Finalize MIB draft and submit to IESG.
Done  Resolve open issues with authentication methods
Done  Issue VRRPv3 (VRRP for IPv6) MIB drafts
Done  Submit updated version of VRRP (IPv4) for Draft Standard
Done  Decide on the VRRP MIB draft (unified or separated MIBs)
Done  Resolve ND vs VMACs issue with VRRPv3
Done  Submit MIB for VRRPv3 for Proposed Standard
Done  Submit VRRP for IPv6 (VRRPv3) for Proposed Standard
Nov 2004  Review the WG goals and future potential


  • draft-ietf-vrrp-unified-mib-07.txt

    Request For Comments:

    RFC2338 PS Virtual Router Redundancy Protocol
    RFC2787 PS Definitions of Managed Objects for the Virtual Router Redundancy Protocol using SNMPv2
    RFC3768 Standard Virtual Router Redundancy Protocol
    RFC5798 PS Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6