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Bug #2828

closed

CARP does not work on dual-homed VMware ESXi hosts without a workaround on the ESX host

Added by Bernhard Schmidt almost 12 years ago. Updated over 10 years ago.

Status:
Closed
Priority:
Normal
Assignee:
-
Category:
CARP
Target version:
-
Start date:
02/20/2013
Due date:
% Done:

0%

Estimated time:
Plus Target Version:
Release Notes:
Affected Version:
Affected Architecture:
All

Description

Certain active/active VMware ESXi configurations loop back CARP multicast frames sent by the machine. This breaks CARP, the machine continously reports

lan_vip3: 2 link states coalesced

and the VIPs are not available, even when the machine is alone in the network.

This is described in the Wiki (http://doc.pfsense.org/index.php/CARP_Configuration_Troubleshooting#VMware_ESX.2FESXi_Users), but altering a setting on the HOST is absolutely impossible in a shared multi-tenant environment.

There is a patch around that allows ignoring the own CARP hello even if it is echoed back. Please consider adding that: http://www.mail-archive.com/freebsd-net@freebsd.org/msg30562.html

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