Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
1–10 of 114 posts
Re: Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
#2Pretty neat!
Previously discussed here: https://news.ycombinator.com/item?id=2755461
Re: Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
#3Could have been titled: How do Apple devices wreak havoc on home networks.
When my kid comes home with his iPhone there is a better than even chance that my home network will go out to lunch. Router reboot time.
Never happens with Windows or Android devices coming and going.
Re: Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
#4Could have been titled: How do Apple devices wreak havoc on home networks. When my kid comes home with his iPhone there is a better than even chance that my home network will go out to lunch. Router reboot time. Never happens with Windows or Android devices coming and going.
Buy a new router?
Re: Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
#5Interesting nugget of information here:
> Thanks to Steinar H. Gunderson for pointing out in the comments that the DHCP server on my test network was incorrectly configured. Since I was using a mostly "out of the box" dhcpd configuration from Ubunbtu Linux, it wasn't set up to be authoritative by default, so it wasn't promptly sending NAKs in response to the Galaxy Tab's requests for an old IP address. After fixing the problem on the DHCP server, the Galaxy Tab's DHCP handshake happens quite a bit faster (although still 85 times slower than the Mac).
Set authoritative on your dhcpd.conf! I checked, fortunately mine is set :)
Re: Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
#6My 5-year-old MBP doesn't seem to connect faster than anything else.
Re: Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
#7Rapid driving: how ignoring red lights makes the iCar so fast.
Re: Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
#8Could have been titled: How do Apple devices wreak havoc on home networks. When my kid comes home with his iPhone there is a better than even chance that my home network will go out to lunch. Router reboot time. Never happens with Windows or Android devices coming and going.
If it's "router reboot time" something is seriously messed up with your network.
If that's an exaggeration and the iPhone is just booting other random stuff off the network, have you tried just increasing the DHCP lease time? On a home network that just sees the same devices day in and out you could safely set it to several days long.
Re: Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
#9They also end up with other host names in the terminal from time to time.
Re: Rapid DHCP: Or, how do Macs get on the network so fast? (2011)
#10I remember this feature used to cause a lot of problems with random IP conflicts, but I haven't had an IP conflict like that in years, so it seems they've made it a lot more robust. Or are routers/DHCP servers just less broken these days (I guess since Apple's market share has forced them to)?