network-programminglink-local

AUTO IP address range


I was going thru RFC3927 which stated below statement -

"The first 256 and last 256 addresses in the 169.254/16 prefix are reserved for future use and MUST NOT be selected by a host using this dynamic configuration mechanism".

Further:

"When a host wishes to configure an IPv4 Link-Local address, it selects an address using a pseudo-random number generator with a uniform distribution in the range from 169.254.1.0 to 169.254.254.255 inclusive."

So which are the specific range or addresses are reserved?


Solution

  • It's exactly as you write: 169.254.0.0/24 and 169.254.255.0/24 are reserved, the rest is used for link-local/zeroconf/APIPA.