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A comment on Rapid DHCP: Or, how do Macs get on the network so fast?. Parent comment

Re:Rapid DHCP: Or, how do Macs get on the network so fast? by cbs on Tuesday July 12, 2011 @04:36PM (#2756437)
the Mac is not sending that out in the request.

I could be wrong about this, as I haven't analyzed actual arp requests in ages, but from the article it appears the arp requests are unicast to the (at least in the example) cached MAC for the gateway.

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Re:Rapid DHCP: Or, how do Macs get on the network so fast? by tomlogic on Tuesday July 12, 2011 @08:18PM (#2757225)
Ah, after a closer look at the original article, I see that now. Curious that Apple would choose to unicast those requests.
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Re:Rapid DHCP: Or, how do Macs get on the network so fast? by caf on Wednesday July 13, 2011 @01:49AM (#2757942)
It does this to verify that the DHCP server has the same MAC address as the one that it remembers. If the server that it remembers isn't present on the current network, the unicast packet should be ignored.
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