Archives for the ‘Network’ Category

IR Sensor network.

I was thinking about making a sensor network. I considered just making every sensor fat with Ethernet. Ethernet modules run around $25 + $0.50 for a MAC address eeprom. That can really add up fast if you have no budget. Then there are ip addresses, configuration code, local interfaces, cables, and power, and wait…a cable, [...]

DHCP Options (for clocks)

A couple DHCP options that are handy for network clocks: 42: NTP Server 100: IEEE 1003.1 TZ String. 101: Reference to the TZ Database. RFC2132, RFC4833