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BLAEU(1) User Commands BLAEU(1)

NAME

Blaeu - Test reachability of the target, like ping

SYNOPSIS

blaeu-reach target-IP-address ...

DESCRIPTION

General options are:

--verbose or -v : makes the program more talkative

--help or -h : this message

--displayprobes or -o : display the probes numbers (WARNING: big lists)

--displayprobeasns : display the (unique) probe ASNumbers (currently only for blaeu-resolve)

--cache-probes=<file.json> : cache probe data

--country=2LETTERSCODE or -c 2LETTERSCODE : limits the measurements to one country (default is world-wide)

--area=AREACODE or -a AREACODE : limits the measurements to one area such as North-Central (default is world-wide)

--asn=ASnumber or -n ASnumber : limits the measurements to one AS (default is all ASes)

--prefix=IPprefix or -f IPprefix : limits the measurements to one IP prefix (default is all prefixes) WARNING: it must be an *exact* prefix in the global routing table

--probes=N or -s N : selects the probes by giving explicit ID (one ID or a comma-separated list)

--requested=N or -r N : requests N probes (default is 5)

--percentage=X or -p X : stops the program as soon as X % of the probes reported a result (default is 90 %)

--measurement-ID=N or -m N : do not start a measurement, just analyze a former one

--old-measurement MSMID or -g MSMID : uses the probes of measurement MSMID

--include TAGS or -i TAGS : limits the measurements to probes with these tags (a comma-separated list)

--exclude TAGS or -e TAGS : excludes from measurements the probes with these tags (a comma-separated list)

--port=N or -t N : destination port for TCP (default is 80)

--size=N or -z N : number of bytes in the packet (default is 64 bytes)

--ipv4 or -4 : uses IPv4 (default is IPv6, except if the parameter or option is an IP address, then it is automatically found)

--tags TAGS : tag the measurement (no relationship with probes tags) (a comma-separated list)

--spread or -w : spreads the tests (add a delay before the tests)

--private : makes the measurement private

--resolve-on-probe : resolve names with the probe's DNS resolver

--machine-readable or -b : machine-readable output, to be consumed by tools like grep or cut

Also:

--tests=N or -d N : send N ICMP packets from each probe (default is 3)

--by_probe : count the percentage of success by probe, not by test (useless if --tests=1)

SEE ALSO

The full documentation for Blaeu is maintained as a Texinfo manual. If the info and Blaeu programs are properly installed at your site, the command

info Blaeu

should give you access to the complete manual.

October 2024 Blaeu version 2.1.1