VLANlab
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VLANlab
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16 tools
Subnet CalculatorCIDR Range ViewerVLSM CalculatorCloudVLAN PlannerBandwidth CalcIPv6 Subnet CalcIP ↔ BinarySupernet CalcCIDR MergeCIDR to IP RangeCIDR SplitIPv4 → IPv6CIDR OverlapFree IP Space FinderDHCP CalculatorMTU Calculator
VLANlab

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What Is My IP?IPv6 TestSpeed Test
DNS LookupDNS PropagationDNS Health CheckerSPF AnalyzerPTR LookupCAA RecordSRV RecordDNS TraceDNS PrivacyDANE / TLSADNSSEC CheckerSPF BuilderDKIM GeneratorZone DiffPTR Zone Generator
Subnet CalculatorCIDR Range ViewerVLSM CalculatorVLAN PlannerBandwidth CalcIPv6 Subnet CalcIP ↔ BinarySupernet CalcCIDR MergeCIDR to IP RangeCIDR SplitIPv4 → IPv6CIDR OverlapFree IP Space FinderDHCP CalculatorMTU Calculator
WHOIS LookupDomain Age CheckerSubdomain FinderIP GeolocationASN / BGP LookupIP Blacklist CheckReverse IP LookupMAC Address LookupBGP Prefix LookupRPKI / ROA CheckDomain Availability
Email InspectorDKIM CheckerEmail HeadersSMTP TestSMTP TLS CheckMX Health CheckEmail SecurityDMARC Generator
Temp Mail很快
Is It Down?SSL/TLS CheckerOpen Port CheckerOG Tag CheckerOCSP CheckerPing / LatencyHTTP InspectorRedirect ChainCSP AnalyzerTech Stack CheckerBetaTracerouteBetaHTTP/2 + HTTP/3robots.txt ViewerSSL Cert DecoderBanner GrabberWebSocket TesterCORS TesterDomain MonitoringHTTP TimingStructured DataPWA ManifestSEO Auditor
One-Time SecretHash GeneratorPassword StrengthSecurity.txtCT Log SearchAXFR Zone Test
HTTP Sec Score很快
WebRTC Leak TestIP Reputation
JSON FormatterYAML FormatterBase64 / URL EncodeJWT DecoderRegex TesterUnix TimestampCron BuilderUUID / ULIDPunycode / IDNBase ConverterACL Generator
CSS Unit ConverterColor ToolkitGradient GeneratorcURL BuilderURL ParserURL Encoder/DecoderHTTP Status CodesBox Shadow GenFavicon GeneratorFlex & Gridrobots.txt Tester
Text CompareCase ConverterText CleanerText AnalyzerText TransformerList ToolsLorem GeneratorSlug Generator
Cloud VPC PlannerCloud IP RangeSecurity GroupsIAM AnalyzerK8s CIDR PlannerFirewall BuilderHCL FormatterEgress Cost CalcCloud DNS Zone
VM Cost Estimator很快
Proxmox Net ConfigVMware Port GroupHyper-V vSwitchVXLAN VNI PlannerKVM Net ConfigXCP-ng NetworkNSX-T Segment
Disposable Email DetectorPhone InspectorTor Exit NodeVPN/Proxy DetectDomain ReputationTyposquat DetectUsername SearchFavicon Hash
GitHub ActionsDockerfile Gendocker-composeArgoCD AppK8s Manifests
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VLAN规划器

设计您的网络分段 - 分配 VLAN ID、名称和子网，并进行实时验证和 CSV 导出。

5 VLANs · 5 valid · 1,526 total hosts
IDNameSubnet / CIDRHosts网络GatewayLast Usable播送Description
254192.168.10.0192.168.10.1192.168.10.254192.168.10.255
254192.168.20.0192.168.20.1192.168.20.254192.168.20.255
510192.168.30.0192.168.30.1192.168.31.254192.168.31.255
25410.0.40.010.0.40.110.0.40.25410.0.40.255
254172.16.0.0172.16.0.1172.16.0.254172.16.0.255
Export config
! Generated by VLANlab VLAN Planner
! Paste into IOS/IOS-XE global configuration mode
!
! VLAN definitions
vlan 10
 name Management
vlan 20
 name Servers
vlan 30
 name Workstations
vlan 40
 name IoT
vlan 99
 name Guest
!
! SVI Layer 3 interfaces
! (gateway = first usable host in each subnet)
!
interface Vlan10
 description Network devices and OOB access
 ip address 192.168.10.1 255.255.255.0
 no shutdown
!
interface Vlan20
 description Production servers
 ip address 192.168.20.1 255.255.255.0
 no shutdown
!
interface Vlan30
 description Employee desktops and laptops
 ip address 192.168.30.1 255.255.254.0
 no shutdown
!
interface Vlan40
 description Smart devices and cameras
 ip address 10.0.40.1 255.255.255.0
 no shutdown
!
interface Vlan99
 description Guest WiFi (isolated)
 ip address 172.16.0.1 255.255.255.0
 no shutdown

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DHCP Calculator

计算子网的 DHCP 地址池范围和租约总数。排除保留 IP 地址，并生成可直接粘贴的配置。

关于此工具

使用此规划工具记录您的网络分段。每个 VLAN 都会获得一个 IEEE 802.1Q ID（1-4094）、一个名称和一个采用 CIDR 表示法的子网。重复的 ID 和重叠的子网会被实时标记。您可以将规划导出为 CSV 文件，以便交接或存档。

常见模式：VLAN 10 用于管理，VLAN 20 用于服务器，VLAN 30 用于工作站，VLAN 40 用于物联网/摄像头，VLAN 50 用于 VoIP，VLAN 99 用于访客 Wi-Fi。保持 VLAN ID 的合理性（以 10 或 100 为步长）有助于交换机上的配置信息清晰易读。首先使用 VLSM 计算器从基本地址块分配子网，然后在此处记录分配结果。