include?(other) public

Returns true if the given ipaddr is in the range.

e.g.:

require 'ipaddr'
net1 = IPAddr.new("192.168.2.0/24")
net2 = IPAddr.new("192.168.2.100")
net3 = IPAddr.new("192.168.3.0")
p net1.include?(net2)     #=> true
p net1.include?(net3)     #=> false
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