.TH BLAEU "1" "June 2022" "Blaeu version 1.1.8" "User Commands" .SH NAME Blaeu \- blaeu-reach : (test reachability of the target, like ping) .SH SYNOPSIS .B blaeu-reach \fI\,target-IP-address \/\fR... .SH DESCRIPTION .SS "General options are:" .HP \fB\-\-verbose\fR or \fB\-v\fR : makes the program more talkative .HP \fB\-\-help\fR or \fB\-h\fR : this message .HP \fB\-\-displayprobes\fR or \fB\-o\fR : display the probes numbers (WARNING: big lists) .HP \fB\-\-country\fR=\fI\,2LETTERSCODE\/\fR or \fB\-c\fR 2LETTERSCODE : limits the measurements to one country (default is world\-wide) .HP \fB\-\-area\fR=\fI\,AREACODE\/\fR or \fB\-a\fR AREACODE : limits the measurements to one area such as North\-Central (default is world\-wide) .HP \fB\-\-asn\fR=\fI\,ASnumber\/\fR or \fB\-n\fR ASnumber : limits the measurements to one AS (default is all ASes) .HP \fB\-\-prefix\fR=\fI\,IPprefix\/\fR or \fB\-f\fR IPprefix : limits the measurements to one IP prefix (default is all prefixes) WARNING: it must be an *exact* prefix in the global routing table .HP \fB\-\-probes\fR=\fI\,N\/\fR or \fB\-s\fR N : selects the probes by giving explicit ID (one ID or a comma\-separated list) .HP \fB\-\-requested\fR=\fI\,N\/\fR or \fB\-r\fR N : requests N probes (default is 5) .HP \fB\-\-percentage\fR=\fI\,X\/\fR or \fB\-p\fR X : stops the program as soon as X % of the probes reported a result (default is 90 %) .HP \fB\-\-measurement\-ID\fR=\fI\,N\/\fR or \fB\-m\fR N : do not start a measurement, just analyze a former one .HP \fB\-\-old_measurement\fR MSMID or \fB\-g\fR MSMID : uses the probes of measurement MSMID .HP \fB\-\-include\fR TAGS or \fB\-i\fR TAGS : limits the measurements to probes with these tags (a comma\-separated list) .HP \fB\-\-exclude\fR TAGS or \fB\-e\fR TAGS : excludes from measurements the probes with these tags (a comma\-separated list) .HP \fB\-\-port\fR=\fI\,N\/\fR or \fB\-t\fR N : destination port for TCP (default is 80) .HP \fB\-\-size\fR=\fI\,N\/\fR or \fB\-z\fR N : number of bytes in the packet (default is 64 bytes) .HP \fB\-\-ipv4\fR or \fB\-4\fR : uses IPv4 (default is IPv6, except if the parameter or option is an IP address, then it is automatically found) .HP \fB\-\-spread\fR or \fB\-w\fR : spreads the tests (add a delay before the tests) .HP \fB\-\-private\fR : makes the measurement private .HP \fB\-\-machinereadable\fR or \fB\-b\fR : machine\-readable output, to be consumed by tools like grep or cut .SS "Also:" .HP \fB\-\-tests\fR=\fI\,N\/\fR or \fB\-d\fR N : send N ICMP packets from each probe (default is 3) .HP \fB\-\-by_probe\fR : count the percentage of success by probe, not by test (useless if \fB\-\-tests\fR=\fI\,1\/\fR) .SH "SEE ALSO" Other Blaeu tools .HP \fBblaeu-cert\fR : (display the PKIX certificate) .HP \fBblaeu-reach\fR : (test reachability of the target, like ping) .HP \fBblaeu-resolve\fR : (use the DNS to resolve the name) .HP \fBblaeu-traceroute\fR : (like traceroute) .PP