tracepath
Trace network path with MTU discovery
TLDR
Trace path to a host with MTU discovery
$ tracepath -p 33434 [host]
Trace with a specific destination port$ tracepath -p [port] [host]
Print both hostnames and IP addresses$ tracepath -b [host]
Specify maximum TTL (hops)$ tracepath -m [max_hops] [host]
Specify initial packet length$ tracepath -l [packet_length] [host]
Use only IPv6 addresses$ tracepath -6 [host]
SYNOPSIS
tracepath [options] host
DESCRIPTION
tracepath traces the path to a network host, discovering the MTU (Maximum Transmission Unit) along the path. Unlike traceroute, it does not require superuser privileges and can detect path MTU.
The output shows each hop with its RTT and MTU information.
PARAMETERS
-p _port_
Set initial destination port-b
Print both hostnames and numerical IP addresses-m _max_hops_
Set maximum number of hops (TTL)-l _length_
Set initial packet length-4
Use IPv4 only-6
Use IPv6 only-n
Print only numeric addresses
CAVEATS
May not work through firewalls that block UDP packets. Results can vary based on network conditions and firewall rules. Part of the iputils package.
SEE ALSO
traceroute(8), ping(8), mtr(8)
