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Host on network shows an error about duplication of its IP address when ClusterXL with VMAC is used
Symptoms

  • "Error, some other host already uses address IP_ADDRESS" error on command line on Linux-based host when restarting the "network" service (with "service network restart" command) on a host, or when rebooting a host.

  • "Found duplicate IP address IP_ADDRESS" error on Windows-based host when restarting the "Network Connections" or "Server" service on a host, or when rebooting a host.

Cause

There are two causes:

  1. ClusterXL answers the Gratuitous ARP Requests (sent by hosts on the network) for IP addresses configured in the $FWDIR/conf/local.arp file (per sk30197).

  2. ClusterXL with VMAC (per sk50840) sends Gratuitous ARP Requests for IP addresses configured in the $FWDIR/conf/local.arp file (per sk30197).

Solution
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