Solaris local-mac-address setting

Hi all,
Having 10gR2 Clusterware and RAC on two Solaris 10 sparc, is it required to set the EEPROM settng local=mac-address? to true so that each network card will use its own MAC address instead of the server unified MAC address? Did anyone see it in Oracle documentation for Solaris?

In order to avoid MAC address conflicts between the primary and standby NIC's, a unique
ethernet MAC address must be assigned to each network interface (NIC) on the server. On
Solaris, this can be done by setting the "local-mac-address?" PROM variable to TRUE (the
default value is FALSE) on each cluster node.
Regards
Marc

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