to a host behind a firewall where only specific services are allowed.
For example, to trace the hops to an HTTP server behind a firewall,
$ traceroute -e -P tcp -p 80 www-firewalled.example.com
MFC after: 1 week
probe
Before:
5 *
freebsd (195.250.137.134) 19.086 ms 24.694 ms
After:
5 * freebsd (195.250.137.134) 19.086 ms 24.694 ms
Fixes: bin/90098
Reported by: Jeremy Chadwick <freebsd@jdc.parodius.com>
Approved by: andre
MFC after: 1 day
Before (backslash in c syntax meaning):
6 p16-2-0-0.r21.sttlwa01.us.bb.verio.net (129.250.2.180) 71.027 ms \
p16-1-1-3.r20.sttlwa01.us.bb.verio.net (129.250.2.6) 66.730 ms 66.535 ms
7 xe-0-2-0.r20.sttlwa01.us.bb.verio.net (129.250.4.16) 71.092 ms \
xe-3-1.r00.sttlwa01.us.bb.verio.net (129.250.2.205) 66.598 ms \
xe-0-2-0.r20.sttlwa01.us.bb.verio.net (129.250.4.16) 71.024 ms
After:
6 p16-2-0-0.r21.sttlwa01.us.bb.verio.net (129.250.2.180) 71.027 ms
p16-1-1-3.r20.sttlwa01.us.bb.verio.net (129.250.2.6) 66.730 ms 66.535 ms
7 xe-0-2-0.r20.sttlwa01.us.bb.verio.net (129.250.4.16) 71.092 ms
xe-3-1.r00.sttlwa01.us.bb.verio.net (129.250.2.205) 66.598 ms
xe-0-2-0.r20.sttlwa01.us.bb.verio.net (129.250.4.16) 71.024 ms
Submitted by: Richard A Steenbergen <ras at e-gerbil.net>
MFC after: 3 days
struct fd_set that should be able to hold sock + 1 bits.
Before, it was apparently assumed that an fd_mask has
the same size as type char.
PR: bin/39617
Reported by: Peter N Lewis <peter@stairways.com.au>
instead of just UDP; an alternate protocol is specified by '-P proto'.
This is useful for finding routers that are blocking packets based on
IP protocol. New handlers can be added fairly easily to do protocol-
specific things.
(implemented better, admittedly) with a new option, '-S'. If the
maintainers of traceroute (Van?) add a -S option, we will then be in
conflict.
Also added a too-brief description of the option in the man page. Someone
with a better command of English than I at the moment should probably look
over it and rephrase it.
Reviewed by: pst, jkh