// value was already found (the values)
		presentAddrs := make(map[string]bool, len(expectedIPs))
		for _, ip := range expectedIPs {
			presentAddrs[ip] = false
		}

		// uniqueness is assumed amongst all Addresses.
		for _, addr := range sub.Addresses {
			if alreadySeen, ok := presentAddrs[addr.IP]; alreadySeen || !ok {
				ipsCorrect = false
				break
			}

			presentAddrs[addr.IP] = true
		}
	}