traceroute

Traceroute

Windows (see capture files tracecert.pcapng and tracecert-8-8-8-8.pcapng)

• ICMP packets of increasing TTL to force routers on the route to report an error with some information
• stupid implementation, repeatedly using weird protocols (LLMNR, NBNS, MDNS) in serial

Linux

• uses UDP packets
• significantly faster
• immediately try to resolve information when available, no retries with weird backup mechanisms