NetSim Pro
Topology Designer
Protocols & Ports
Packet Simulator
IP Analyzer
Design Guide
SIM ONLINE
Network Devices
Router
Switch
Firewall
Server
Desktop
Laptop
Cloud/Internet
Tools
Wire Tool
Send Test Packet
Auto Layout
Clear All
Legend
• Click device to select
• Drag to move
• Wire Tool: click two devices to connect
• Right-click to delete
Drag devices onto the canvas to start designing
Router
Type
—
IP Address
—
MAC
—
Connections
—
Status
Online
All
Application
Transport
Network
Link
Source
192.168.1.10 (Desktop)
192.168.1.20 (Laptop)
10.0.0.5 (Server)
Destination
8.8.8.8 (DNS - Google)
93.184.216.34 (Web Server)
192.168.1.1 (Router/Gateway)
10.0.0.5 (Internal Server)
Protocol
HTTP (Port 80)
HTTPS (Port 443)
DNS (Port 53)
SSH (Port 22)
SMTP (Port 25)
FTP (Port 21)
ICMP (Ping)
Payload (bytes)
TTL
▶ Send Packet
⚡ Send Burst (10x)
OSI Layer Traversal
7
Application
—
6
Presentation
—
5
Session
—
4
Transport
—
3
Network
—
2
Data Link
—
1
Physical
—
// Packet log — send packets to see activity
Enter IP Address or CIDR Block
Analyze
Random IP
IP Address Ranges Reference
Common Subnet Reference
Network Design Workflow
Follow these steps to design a production-ready network structure. Check off tasks as you complete them.