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Subnet Vault User Guide
Calculate subnets, analyze networks, and manage IP addresses with our comprehensive networking toolkit.
Table of Contents
1
Basic Subnet Calculations
How do I perform a standard subnet calculation?
Enter a base IP address and CIDR notation (e.g., 192.168.0.0/24). Tap Calculate to view results, which include: network address, broadcast address, usable IP range, and number of available hosts.
What is VLSM and how do I use it?
Variable Length Subnet Mask (VLSM) allows you to create subnets of different sizes from a single network address. To use the VLSM Calculator: enter your base network address, add the required number of hosts for each subnet, and the app will calculate the optimal subnet sizes automatically.
Does the app support IPv6?
Yes, for IPv6 calculations, switch to the IPv6 Calculator tab where you'll find specialized tools for IPv6 subnetting and address management.
2
Network Tools
How do I test if a host is reachable?
Use the Ping tool. Enter an IP address or hostname. View results showing round-trip times and packet loss.
How can I look up domain information?
Use the WHOIS tool. Enter a domain name. View registration details, ownership, and expiration information.
What DNS records can I look up?
Enter any domain name and select from available record types: A records (IPv4), AAAA records (IPv6), MX records (mail), TXT records, CNAME records, and other DNS record types.
3
Wake-on-LAN Feature
How do I wake up a remote device?
Go to the Wake-on-LAN tab. Enter the device's MAC address. Enter the network broadcast address (or use auto-detect). Optionally specify a custom port (default is 9). Tap "Wake Device" to send the magic packet.
Why isn't Wake-on-LAN working?
Check these common issues: Verify the target device supports Wake-on-LAN. Ensure Wake-on-LAN is enabled in the device's BIOS/settings. Confirm the device is in sleep mode (not powered off). Double-check the MAC address and broadcast address. Verify you're on the same network as the target device.
4
Sharing and Exporting
How can I share calculation results?
Tap the share icon after performing calculations. Choose from sharing options: Messages, Mail, AirDrop, or Save to Files.
Can I quickly copy specific values?
Tap the copy icon next to any individual result. The value will be copied in a clean, formatted text layout.