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Subnetmask Calculator

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Overview

Simple IP subnet calculator. Enter an IP/prefix to get network, broadcast, subnet mask, and address count.

日本語 IP Address Subnet Calculator IPアドレス、サブネットマスクを簡単に計算できるツールです。このツールを使用することで、ネットワークの設定や管理が効率的に行えます。特にCisco機器のACL（アクセス制御リスト）で使用するワイルドカードマスクの一覧も提供しています。 機能: IPアドレスの入力とサブネットマスクの計算 ネットワークアドレス、ブロードキャストアドレス、使用可能なIPアドレスの数を表示 Cisco ACLで使用するワイルドカードマスクの参照 このツールは、ネットワークエンジニアやシステム管理者に必要最低限の機能を提供します。 English IP Address Subnet Calculator This tool allows you to easily calculate IP addresses and subnet masks. By using this tool, you can efficiently manage and configure your network. It is especially useful for providing a list of wildcard masks used in Cisco device ACLs (Access Control Lists). Features: Input IP address and calculate subnet mask Display network address, broadcast address, and the number of usable IP addresses Reference wildcard masks used in Cisco ACLs This tool offers essential functionalities for network engineers and system administrators. Source Code (GitHub): https://github.com/kurakens/IP-subnet-calc

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Details

  • Version
    3.0
  • Updated
    September 13, 2026
  • Offered by
    kurakens
  • Size
    20.41KiB
  • Languages
    日本語
  • Developer
    Email
    ken@vilsv.net
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

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  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

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