tcptraceroute ☆

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Description:
Traceroute implementation using TCP packets

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Networking

Tags: networking diagnostics traceroute tcp troubleshooting

Install: brew install tcptraceroute

About:
tcptraceroute is a versatile network diagnostic tool that implements traceroute using TCP packets instead of traditional ICMP. This approach allows it to bypass firewall restrictions that often block standard traceroute probes, making it highly effective for diagnosing routing issues through filtered networks. It offers similar functionality to standard traceroute but with the ability to specify source ports, destination ports, and other TCP-specific parameters.

Key Features:

TCP-based traceroute bypassing ICMP filters
Configurable source and destination ports
Support for TCP SYN, ACK, and other flags
Packet fragmentation support
TCP timestamp options

Use Cases:

Diagnosing network paths through firewalls that block ICMP
Testing TCP connectivity to specific ports on remote hosts
Troubleshooting load balancer routing and port forwarding
Verifying network ACL rules and filtering policies

Alternatives:

traceroute – Standard ICMP-based traceroute, often blocked by firewalls
mtr – Combines traceroute and ping with continuous monitoring
nmap – General port scanner with traceroute functionality via --traceroute

Version History

Detected	Version	Rev	Change	Commit
Sep 12, 2025 3:25am		2	VERSION_BUMP	6a9ea38b