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DacatDHCP

dacat.cc

Free plan WebWindows
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Spec score 7.8 #10 of 25 in DHCP Management Software

What it is

DacatDHCP combines an IPv4 DHCP service with a web interface for configuring address pools, viewing leases, and monitoring status. The lightweight single-file application bundles the service and management interface. Settings include network-interface selection, address ranges, gateway, DNS, and lease duration. The interface shows assigned addresses and client information, while version 1.0.0 adds fixed MAC-to-IP mappings with matching logs. The main release supports Windows 10, Windows 11, and Windows Server 2016 or later on Windows amd64. Management works in Edge, Chrome, and other modern Chromium-based browsers; Internet Explorer 11 is not supported. The interface listens on 127.0.0.1, and write endpoints use CSRF and origin checks. Administrator privileges are required. DacatDHCP is permanently free and open source under Apache License 2.0. It is intended for labs, test environments, temporary LANs, small networks, troubleshooting, and isolated networks. Address pools must share the selected interface’s subnet. Leases remain in memory after startup and are not restored after restart; active IP-conflict detection is not provided.

Spec sheet

Purpose
DacatDHCP combines a DHCP service with a web management interface for configuring address pools, viewing leases, and monitoring service status.Read 4 Oct 2026 · dacat.cc
Deployment
It is delivered as a lightweight single-file application with its service and management interface bundled together.Read 4 Oct 2026 · dacat.cc
Security
The management interface listens only on 127.0.0.1, and write endpoints use CSRF and origin checks.Read 4 Oct 2026 · github.com
License
The v1.0.0 release is published under the Apache License 2.0.Read 4 Oct 2026 · github.com
Browser support
The management interface supports Microsoft Edge, Google Chrome, and other modern Chromium-based browsers; Internet Explorer 11 is no longer supported.Read 4 Oct 2026 · github.com
Features
It supports network-interface selection and configuration of address ranges, gateway, DNS, and lease duration.Read 4 Oct 2026 · dacat.cc
Intended use
The maker describes it for labs, test environments, temporary LANs, small networks, device troubleshooting, and isolated networks.Read 4 Oct 2026 · dacat.cc
Lease management
The interface can show assigned addresses and client information, and the latest release adds MAC-to-IP fixed mappings with matching logs.Read 4 Oct 2026 · github.com
Lease persistence
The v1.0.0 release notes say leases are held in memory and are not restored after restart, and that active IP-conflict detection is not provided.Read 4 Oct 2026 · github.com
Limits
It focuses on IPv4 DHCP and does not currently support IPv6 or DHCPv6.Read 4 Oct 2026 · github.com
Network scope
The address pool must be in the same subnet as the selected network interface; the product does not support cross-subnet address pools.Read 4 Oct 2026 · github.com
Permissions
Running the application requires administrator privileges.Read 4 Oct 2026 · github.com
Platform
The main version supports Windows 10, Windows 11, and Windows Server 2016 or later, with Windows amd64 releases.Read 4 Oct 2026 · dacat.cc
Support and source
The maker directs users to GitHub for source code, releases, documentation, and issue feedback.Read 4 Oct 2026 · dacat.cc

Plans and prices

Official version Free Official version is permanently free. Windows amd64 · IPv4 DHCP only · local DHCP service Read 4 Oct 2026 · github.com

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Strong points and limits

Strong points

  • Bundles DHCP service and web interface in one file
  • Configures ranges, gateway, DNS, and lease duration
  • Adds fixed MAC-to-IP mappings and logs
  • Runs on supported Windows amd64 versions
  • Permanently free and Apache 2.0 licensed

Limits

  • Supports IPv4 only, not IPv6 or DHCPv6
  • Address pools cannot cross the interface subnet
  • Leases are not restored after restart
  • Requires administrator privileges

Who it suits

It suits Windows administrators handling labs, temporary LANs, small networks, or isolated troubleshooting setups. Its IPv4-only scope fits environments without IPv6 DHCP requirements.

Verdict

DacatDHCP is a focused Windows IPv4 DHCP utility with local web management and straightforward deployment. Its subnet restriction, nonpersistent leases, and lack of conflict detection limit longer-lived or more complex networks.

Where Specifiction places it

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