Skip to main content
glyph.sh
Type a command…⌘K

VLAN Calculator

VLAN planning tool with IPv4 and IPv6 addressing guidance

Plan your VLANs with proper ID ranges and IP addressing for both IPv4 and IPv6 networks. All calculations happen in your browser.

VLAN Information

Valid range: 1-4094 (0 and 4095 are reserved)
Descriptive name for the VLAN
Number of devices that will be on this VLAN

VLAN Details

Basic Information

VLAN ID:
Name:
Status:
Range Type:

802.1Q Information

Tag Size:4 bytes (32 bits)
TPID:0x8100
PCP (Priority):3 bits (0-7)
VID (VLAN ID):12 bits

Recommended IPv4 Addressing

Recommended IPv6 Addressing

Best Practices

Naming Conventions

  • Use descriptive names (Servers, Guest, Voice)
  • Include location if managing multiple sites
  • Avoid spaces (use underscores or hyphens)
  • Document VLAN purposes in network diagram

Security Tips

  • Separate management VLAN from user traffic
  • Use private VLANs for guest networks
  • Implement VLAN ACLs for inter-VLAN routing
  • Disable unused VLANs on switches

VLAN ID Ranges

RangeDescriptionUsage
0ReservedNot used for normal traffic
1Default VLANDefault for all ports (should be changed)
2-1001Normal RangeStandard VLANs, stored in vlan.dat
1002-1005Reserved (Legacy)Token Ring and FDDI (rarely used)
1006-4094Extended RangeFor large networks, not all switches support
4095ReservedReserved by 802.1Q standard

Common VLAN Assignments

VLAN IDCommon NameTypical UseIPv4 Example
10ManagementSwitch/router management interfaces192.168.10.0/24
20ServersProduction servers and services192.168.20.0/24
30WorkstationsEmployee computers and devices192.168.30.0/24
40Guest/WiFiGuest network access172.16.40.0/24
50Voice/VoIPIP phones and voice traffic10.50.0.0/24
60IoT/SensorsIoT devices, cameras, sensors192.168.60.0/24
99Native/UnusedTrunk native VLAN (dummy VLAN)None