Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →
instance method
IPAddr#mask
mask(prefixlen)
lib/ipaddr.rb
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# File tmp/rubies/ruby-3.3.0/lib/ipaddr.rb, line 160
def mask(prefixlen)
return self.clone.mask!(prefixlen)
end
Returns a new ipaddr built by masking IP address with the given prefixlen/netmask. (e.g. 8, 64, “255.255.255.0”, etc.)