When cables aren’t labeled and documentation is missing, simple network troubleshooting can take far longer than it should. Questions like "Which switch and port am I connected to?" or "Is this link negotiating at Gigabit?" come up all the time.
This cross-platform tool brings together common network checks in one place to help you diagnose issues faster from the client's point of view, no need to log into every switch (for those not yet on cloud managed network environments).
Download the Latest Release
Features
- Network interface discovery with speed/duplex status
- LLDP/CDP neighbor discovery
- DHCP information gathering
- Plain text report
Usage
# network report sudo ./netool # network report sudo ./netool -i eth0
Example Report
Select interface:
1) Embedded LOM 1 Port 1
2) Local Area Connection* 10
3) Ethernet 3
4) vEthernet (HPE Virtual Switch Adapter #1 - Virtual Switch)
Enter number (1..4): 4
Interface: vEthernet (HPE Virtual Switch Adapter #1 - Virtual Switch)
MAC: 94:40:C9:12:2F:49
IP: 192.168.30.100/24
Link: up [ethernet 1.00 Gbps]
Switch / VLAN Info (LLDP)
System: USW-24-PoETechBenchCenter
Port: Port 23
VLAN: 30
Chassis:E4:38:83:87:AF:6C
Connectivity Tests
Ping 8.8.8.8: 8.0 ms
Ping 1.1.1.1: 8.0 ms
DNS Lookup: google.com 142.250.76.110
HTTPS Test: 200
DHCP Lease / Server Detection
DHCP: sending DISCOVER and listening for OFFER...
Sent DISCOVER (xid=0x30a5e0eb)
Listening for 30s...
DHCP OFFER:
Your IP: 192.168.30.100
Server ID: 192.168.30.1
Router: 192.168.30.1
DNS: 172.64.36.1 172.64.36.2
Lease: 24h 0m
Zig build
https://ziglang.org/documentation/0.14.1/#Build-Mode
zig build -Doptimize=ReleaseSmall # Intel macOS: zig build -Dtarget=x86_64-macos -Dcpu=baseline -Doptimize=ReleaseSmall # Apple Silicon: zig build -Dtarget=aarch64-macos -Dcpu=baseline -Doptimize=ReleaseSmall # Windows: zig build -Dtarget=x86_64-windows -Dcpu=baseline -Doptimize=ReleaseSmall # Linux: zig build -Dtarget=x86_64-linux -Dcpu=baseline -Doptimize=ReleaseSmall
Requirements
- Root/Administrator privileges
- Zig 0.15.2
- Linux: lldpctl