Why 'ifconfig' command does not update "arp tables" on routers or systems on the subnet?

Solution Unverified - Updated -

Issue

  • ifconfig does not update "arp tables" on routers or systems on the subnet
  • ifconfig in Solaris will make a gratuitous arp request on the network when an interface is brought up, but linux's ifconfig does not.

Environment

  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 4

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