Port 33434 is the IANA-reserved port for traceroute. It also seems to be
the most common start port. The following implementations, and
likely others, use it as their start port:
Apple macOS traceroute
FreeBSD traceroute
GNU inetutils-traceroute
Modern traceroute for Linux
OpenBSD traceroute
The benefit to using a standard starting port is that some firewalls may
have these ports allowed, whereas other ports may be blocked, so there
is a greater probability the probe will succeed.
I’m uncertain if the SEQUENCE_NUM and MinSequence constants should also be changed.
Port 33434 is the IANA-reserved port for traceroute. It also seems to be the most common start port. The following implementations, and likely others, use it as their start port:
The benefit to using a standard starting port is that some firewalls may have these ports allowed, whereas other ports may be blocked, so there is a greater probability the probe will succeed.
I’m uncertain if the
SEQUENCE_NUMandMinSequenceconstants should also be changed.