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instance method

IPAddr#mask

(::String | ::Integer prefixlen) -> ::IPAddr

mask(prefixlen)

# File tmp/rubies/ruby-4.1.0-preview1/lib/ipaddr.rb, line 180
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.)

See also #mask! #loopback? #link_local_unicast? #multicast? also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0