[186883] in North American Network Operators' Group
Re: Smokeping targets
daemon@ATHENA.MIT.EDU (Marco d'Itri)
Fri Jan 8 11:15:36 2016
X-Original-To: nanog@nanog.org
Date: Thu, 7 Jan 2016 17:13:58 +0100
From: Marco d'Itri <md+nanog@Linux.IT>
To: nanog@nanog.org
Mail-Followup-To: nanog@nanog.org
In-Reply-To: <CAH8qE+1rX8bvfB1fW3TZYKJjDiPkVP-3y0kvMGyS8c=qcJKbFQ@mail.gmail.com>
Errors-To: nanog-bounces@nanog.org
--uQr8t48UFsdbeI+V
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable
On Jan 07, Andrew Dampf <adampf@gmail.com> wrote:
> Something I found that is helpful once you've gathered a list of targets =
is
> the following command for generating config to paste:
>=20
> traceroute -w 3 [IPaddress] | grep -v "*" | grep -v "traceroute" | sed -e
> 's/(//g' -e 's/)//g' | awk '{ gsub(/\./,"_",$2); print "++++ "$2"\nmenu =
=3D
> "$3"\ntitle =3D "$2" - "$3"\nhost =3D "$3"\n"}'
>=20
> That generates a valid output for configs to ping each hop along the way =
to
> your destination, which can be super useful. Not all of them allow ICMP b=
ut
> a decent amount do.
It is also super stupid, because routers reply to ICMP echo requests=20
with a very low priority: this introduces jitter which makes these=20
measurements unreliable.
If you are not monitoring a server then you are wasting your time.
(Also, it would be nice to have the owner permission before deciding to
permanently send a lot of ICMPs to a device.)
--=20
ciao,
Marco
--uQr8t48UFsdbeI+V
Content-Type: application/pgp-signature; name="signature.asc"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=YYKE
-----END PGP SIGNATURE-----
--uQr8t48UFsdbeI+V--
