Comment 2 for bug 1304518
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| Julian Edwards (julian-edwards) wrote | #2 |
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1b1ed1a
(Get the code!)
Let me explain what it means and then maybe that will help me to understand which part is confusing you.
When a BMC is using DHCP, its address can change at any time at the whim of the DHCP server. It usually doesn't, which is why it normally works but on a busy network that is using all of its IPs that won't be the case.
To get around this, MAAS allows you to enter the BMCs MAC address instead and uses ARP to look up the IP for that MAC. This is a lot more reliable in the face of changing IPs, however it requires that the ARP table is populated so may not always work.