The IP address range is 169.254.0.1 through 169.254.255.254. The client also configures itself with a default class B subnet mask of 255.255.0.0. A client uses the self-configured IP address until a DHCP server becomes available. The APIPA service also checks regularly for the presence of a DHCP server (every five minutes, according to Microsoft).

Mar 21, 2019 dhcp - Why is Windows' default IP address 169.xx.xx.xx The use of 169.x.x.x addresses are defined within a standard colloquially known as APIPA - Automatic Private IP Addressing.. In a nutshell, if a network device has not been assigned a fixed (static) address and cannot obtain one by asking (), the device says to itself, "Well, I'd better make up an address of my own so I can communicate on this network", so it assigns itself an APIPA address Understanding TCP/IP addressing and subnetting basics

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169.254.0.0/16 addresses explained - PacketLife.net Sep 24, 2008 A List of Common Default Router IP Addresses - TechSpot

Removing an IIS server’s IP address from HTTP responses

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