# ttl-probe

> Minimal traceroute implementation in C++ using raw ICMP sockets: sends echo requests with increasing TTL and reports which hop replies "time exceeded" at each step.

Written for Windows, built with CMake and MSVC.

## Docs

- [README](https://github.com/ImSavsis/ttl-probe/blob/master/README.md): build and usage instructions, architecture diagram
- [src/main.cpp](https://github.com/ImSavsis/ttl-probe/blob/master/src/main.cpp): ICMP packet construction and hop-by-hop probing loop

## Notes

- Originally scoped as a same-connection TTL "fake packet" DPI bypass trick, but that needs raw TCP packet injection which Windows blocks without a driver like WinDivert — this is the honest, working substitute