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Unread 14-01-2017, 03:40
AustinSchuh AustinSchuh is offline
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FRC #0971 (Spartan Robotics) #254 (The Cheesy Poofs)
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Re: Static IP vs DHCP

Quote:
Originally Posted by jlindquist74 View Post
  • DHCP is how a host, lacking its own address, asks a server to assign it one. (It requires a DHCP server to be present somewhere on the local network in order to work.)
  • mDNS is how a host, lacking the address of another host on the local network, asks that other host to provide its address. (It does NOT require a server to work.)
The fun one is what happens when you plug your DS into the robot (a network without a DHCP server). Turns out, you get a link local IPv6 address which can be found via mDNS, allowing the two devices to communicate. Sometimes, if you are luck and everything works. We just gave up debugging the various issues we ran into and put everything on static IP addresses.
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