Only if you believe censorship has nothing to do with free speech.
On 1/11/2021 6:16 PM, Anne P. Mitchell, Esq. wrote:
That would make me wonder how many cases there have been of someone
"shouting fire in a crowded theatre" where there was no fire and at
least one person died as a result; ...
T
You might try the SiLK offering from Carnegie-Mellon's CERT team. A
netflow/sflow collector with full tool suite.
Very robust, fast and free.
https://tools.netsa.cert.org/silk
On 1/21/2021 9:31 AM, Drew Weaver wrote:
Good morning everyone,
I am looking for a Netflow collector that can forwa
V8! heh ... wow hadn't thought of that for a while ...
On 2/15/2021 3:39 PM, Valdis Klētnieks wrote:
On Mon, 15 Feb 2021 10:51:51 -0800, Sabri Berisha said:
Well, considering this RIPE article that talked about IPv7 already..
https://lists.ripe.net/pipermail/ripe-org-closed/1993/msg00024.htm
If your looking to go low-cost (free) try:
1) Carnegie/Mellon's very robust, flexible and efficient collector
analyzer (command line): SiLK - https://tools.netsa.cert.org/silk
2) FlowViewer - A comprehensive web-based user interface for SiLK which
provides textual, graphical analysis, long te
Indeed. I was quite surprised to learn that an issue we were dealing
with was a result of not having have the latest TZ file installed.
On 3/16/2022 4:47 PM, Ask Bjørn Hansen wrote:
This is a weirdly long thread, mostly unrelated to NANOG, it seems.
The work for how this will be implemented in
Try FlowViewer (analyzing, graphing, tending software) + SiLK (robust,
high-performance capture software from Carnegie-Mellon).
Pretty full netflow analysis package; free.
See: http://flowviewer.net
Joe
On 5/16/2022 2:34 PM, Matthew Crocker wrote:
I’m looking for a free-ish Linux open sourc
FiOS from Maryland (anonymized):
enp3s0: flags=4163 mtu 1500
inet 192.168.1.164 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::b104:8f4d:e5b2:e13b prefixlen 64 scopeid 0x20
inet6 2600:4040:b27f:cb00:a9b1:5f59:: prefixlen 64
scopeid 0x0
in
Well, makes sense. According to Schrodinger it's both up and down.
On 8/11/2022 5:16 PM, Michael Thomas wrote:
On 8/11/22 2:12 PM, Mel Beckman wrote:
According to Heisenberg, it’s up :)
It's still having problems serving up images. Thankfully their ad
images are not affected :/
Mike
-m
I dunno ... I had to turn Verizon's FiOS IPv6 off because it wasn't
playing well with my Pulse VPN. So they are providing it now (maybe not
supporting it ;-)
On 7/15/2023 12:05 PM, Joe Klein wrote:
As from a consumers standpoint, Verizon FIOS has published an IPv6
website, created a discussion
Dennis,
You might try FlowViewer https://sourceforge.net/projects/flowviewer
Fairly easy Linux install over top of SiLK, netflow capture and analysis
software from Carnegie-Mellon. SiLK is very robust and FlowViewer
provides a web-based interface with extensive analysis, graphing and
tracking
+1
Joe Loiacono
From: Mike Hammett
To:
Cc: Nanog@nanog.org
Date: 12/23/2016 08:20 AM
Subject:Re: Canada joins the 21st century !
Sent by:"NANOG"
The government getting involved with the Internet rarely goes well. The
FCC is a shining example of how to
Consider also open-source FlowViewer for netflow capture and analysis. A lot of
very useful netflow based analytical tools in an easy UI. Sits on top of a
robust set of Carnegie-Mellon's high-capacity SiLK netflow tools.
https://sourceforge.net/projects/flowviewer/
Joe
- Original Message
Try FlowViewer http://flowviewer.net
Free, complete, graphical netflow analysis tool.
Developed for NASA. Runs on top of SiLK, a powerful open-source netflow
capture and analysis tool developed by Carnegie-Mellon for DoD. Supports
IPFIX, netflow v5, sflow, IPv6. Text reports, graphing and long
Lowering barriers to entry is where the next political focus should be.
Joe Loiacono
From: Mike Hammett
To:
Cc: NANOG list
Date: 03/29/2017 09:13 AM
Subject:Re: EFF Call for sign-ons: ISPs, networking companies and
engineers opposed to FCC privacy repeal
Sent by
"NANOG" wrote on 05/16/2017 03:34:39 PM:
> From: freed...@freedman.net (Avi Freedman)
> To: Vitaly Nikolaev
> Cc: nanog@nanog.org, Mehrdad Arshad Rad
> Date: 05/16/2017 03:36 PM
> Subject: Re: vFlow :: IPFIX, sFlow and Netflow collector
> Sent by: "NANOG"
> I've seen a lot of different approa
You may want to check out the SiLK netflow capture and analysis tool
suite. Look in particular at it's SiLK Administrators Tools section which
provides extensive flexibility for manipulating netflow exports. The
analysis tools are quite good too.
http://tools.netsa.cert.org/silk/silk-reference-
Dorn Hetzel wrote on 10/04/2010 06:22:58 PM:
> With regards to the Wired Article, I still have my copy of that issue
and
> would consider that article perhaps my favorite magazine article of all
> time.
Same here. A classic.
"Justin M. Streiner" wrote on 10/21/2010
01:58:46 PM:
> My next question would be "How many times will that get extended/pushed
> back because somebody screams loudly enough?". It will probably sunset
> around the time that v6 starts to run out of gas and people start
thinking
> about IPv8
Note that the NIST IPv6 document Kevin pointed to, in the acknowledgements
section, includes the following individual who assisted:
Trung Nguyen, FAA
Joe
From:
"Ryan Finnesey"
To:
Date:
01/04/2011 10:25 PM
Subject:
RE: FAA - ASDI servers
Is anyone on the list from the FAA? I am trying to
If you're considering actual 'netflow' data, I'm not really sure it will
help with your requirements. The smallest unit is the 'flow' which could
include many UDP packets and has only *flow* start and end times.
Cisco's IP SLA might help. See:
http://www.cisco.com/en/US/docs/ios/12_4/ip_sla/con
Another use of 'hacking' has been around in software for awhile ...
Newsgroups: comp.lang.perl.misc
Subject: Re: Who is Just another Perl hacker?
From: mer...@stonehenge.com (Randal L. Schwartz)
Message-ID:
> "Juho" == Juho Cederstrom writes:
Juho> But when do I become Just another Perl
Larry Sheldon wrote on 03/15/2014 06:07:33 PM:
> From: Larry Sheldon
> To: nanog@nanog.org
> Date: 03/15/2014 06:09 PM
> Subject: Re: US to relinquish control of Internet
>
> On 3/15/2014 7:39 AM, Bob Evans wrote:
> >> Was I being a pollyanna?
> >
> > Yep, way to optimistic. The world always wan
"NANOG" wrote on 05/02/2014
11:00:15 AM:
> From: freed...@freedman.net (Avi Freedman)
>
> There's also SiLK from CMU. It's powerful but has a learning curve.
>
SiLK is very good. See FlowViewer for a powerful front-end to the tool.
http://sourceforge.net/projects/flowviewer/
Also supports
Mike Jones wrote on 12/02/2011 03:14:58 PM:
> What about land? it's a public resource that you've paid money to
> someone in exchange for transferring their rights over that public
> resource to you.
Land is private property.
Joe
Beware the office with an Internet connection too:
http://xkcd.com/862/
Don't forget to 'mouseover' the graphic.
Joe
William Herrin wrote on 12/05/2011 11:20:04 PM:
> 3. Beware tracking hours. Try to select work which is goal and
> deadline based. Your supervisor won't see you in your seat; h
I have had success in the recent past using their chat channel ...
http://webchat.freenode.net/?randomnick=0&channels=sourceforge
Joe
From: Seamus Ryan
To: "'NANOG list'"
Date: 12/13/2012 04:28 AM
Subject:RE: Has anyone had any response from Sourceforge lately?
Looking for a
Tim Calvin wrote on 01/16/2013 05:51:11 PM:
> PowerEdge R610 -
>
> 2x Intel E5540, 2.53GHz Quad Core Processor
>
> 32GB RAM
>
> 2x 300gb 10k 2.5" SAS HDD
Since netflow processing is generally I/O bound, you may want to invest in
15K drives.
Joe
christopher.mor...@gmail.com wrote on 01/17/2013 11:01:06 AM:
> From: Christopher Morrow
> To: Joe Loiacono/USA/CSC@CSC
> Cc: Tim Calvin , "nanog@nanog.org"
> Date: 01/17/2013 11:01 AM
> Subject: Re: Netflow Nfsen Server Hardware
> Sent by: christopher.mor...@gmail.c
If you can export netflow you can use the FlowViewer / flow-tools / SiLK
open-source toolset. It can track bandwidth over time according to any
filter you provide it, including IP address. User interface includes an
updating dashboard.
http://sourceforge.net/projects/flowviewer
Joe
From:
Check out the FlowViewer/flow-tools/SiLK combo also.
https://sourceforge.net/projects/flowviewer/
Erik Sundberg wrote on 05/14/2013 06:59:32 PM:
> From: Erik Sundberg
> To: "nanog@nanog.org"
> Date: 05/14/2013 07:00 PM
> Subject: Looking for Netflow analysis package
>
> Does anyone know of
Is a good knowledge of either origin-AS, or next-AS with respect to flows
valuable in establishing, monitoring, or re-enforcing a security posture?
In what ways?
TIA,
Joe
Consider also FlowViewer w/ flow-tools. You can set up long-term graphs of
any filtered traffic you like (e.g., by AS, by IP range, by service (ie
port), or any combination, etc.) Keeps stats like peak, average, etc. (just
like MRTG, only for the filtered set of your choice.) Has an email alert
cap
Tei wrote on 03/26/2012 06:16:53 AM:
> I imagine a easier solution. Use a random number generator in both
> sides, with the same seed. Then use a slower way to send "packets
> re-sync" that will contain the delta from the generated number, to the
> real actual number.
>
> I suppose this speeds
Peter Phaal wrote on 07/13/2012 04:20:45 PM:
> 2. sFlow: Packets are randomly sampled in hardware and the packet
> headers are immediately exported as sFlow datagrams - there is no flow
> cache on the switch/router. In addition to exporting the packet
> header, the sFlow agent captures the FIB st
Peter Phaal wrote on 09/23/2012 12:23:57 PM:
> Exporting packet oriented measurements doesn't mean that you have to
> loose ingress/egress interface data. In the specific example being
> discussed (sFlow export), detailed forwarding information from the
> router forwarding plane is exported with
Peter Phaal wrote on 09/24/2012 10:39:26 AM:
> When a switch/router decides to sample a packet it records the
> ingress/egress interfaces and accumulates information about how it
> decided to forward the packet by examining its FIB tables. Each packet
> may take a different path, some may by swit
FlowViewer version 4.4 (open-source) is now available on SourceForge.
FlowViewer provides a dynamic web front-end to two powerful open-source
netflow data collector and analyzers, flow-tools and SiLK. FlowViewer
provides the user with the ability to report, graph and track (MRTG-like)
user spec
Perhaps you've considered this already ... not sure if it gets 1us or not
: bwctl?
http://software.internet2.edu/bwctl/
Joe
From: Saku Ytti
To: nanog@nanog.org
Date: 08/26/2014 01:15 PM
Subject:network quality measurement probes+reporting
Sent by:"NANOG"
Anyone ca
"NANOG" wrote on 10/22/2014 10:47:46 PM:
> The arguments against systemd that I've seen so far:
>
> 1) It's different so it's bad.
> 2) There's a lot of code, there must be some really bad security
> problems just waiting to happen, so it's bad.
> 3) It doesn't do things the way we've always don
If you go the netflow route you might consider FlowViewer/SiLK for the
collector/analyzer. It is web driven and allows you to easily establish
traffic thresholds which will generate an alert email.
https://sourceforge.net/projects/flowviewer
Joe
"NANOG" wrote on 11/14/2014 02:35:44 AM:
> Fro
Got your attention. Made a statement. Good for them.
"NANOG" wrote on 02/27/2015 09:10:58 AM:
> From: Scott Fisher
> To: Larry Sheldon , NANOG list
> Date: 02/27/2015 09:12 AM
> Subject: Re: Verizon Policy Statement on Net Neutrality
> Sent by: "NANOG"
>
> Funny, but in my honest opinion, un
You could use FlowViewer with the flow-tools underlying collector option
if you're collecting v5 netflow. This will permit you to keep long-term
graphs (ala MRTG - Last 24 hours, Last 7 days, etc.) for each AS peer with
5-minute granularity You can also graph specified time intervals at much
sm
The maximum you can expect is:
Rate < (MSS/RTT)*(1 / sqrt(p)) where p is the probability of packet loss.
Credit: Mathis, Semke, Mahdavi & Ott in Computer Communication Review, 27
(3), July 1997, titled The macroscopic behavior of the TCP congestion
avoidance algorithm.
( http://www.infoblox.com/
Try opensource flowtools/FlowViewer. All sorts of reports, graphs, and
RRDtool-like long-term series graphs, for AS'es.
The flowtools capture/analyzer software can handle high volumes of netflow
exports from many exporters.
http://ensight.eos.nasa.gov/FlowViewer/
Joe
"Michael J McCafferty"
"Lee, Steven (NSG Malaysia)" <[EMAIL PROTECTED]> wrote on 10/10/2008
01:20:30 PM:
> Does anyone aware of the sampled netflow accuracy?
If you mean how well you can extrapolate "real" numbers from "samples" by
multiplying by the inverse sample rate, my (initial and somewhat limited)
testing sho
Paul Vixie wrote on 02/06/2009 02:20:01 AM:
> the fundamental implication is, forget about address space, it's
paperwork
> now, it's off the table as a negotiating item or any kind of constraint.
> but the size of the routing table is still a bogeyman, and IPv6 arms
that
> bogeyman with nukes.
Tim Durack wrote on 02/06/2009 09:28:02 AM:
>
> Given that ARIN at least is assigning end-user /48s out of 2620::/23
> it would be useful to accept these announcements. If not end-user PI
> is dead in the water. Some providers might like that. End-users
> probably won't.
That range alone is 25
I'd like to add:
--flow-tools and FlowViewer ( http://ensight.eos.nasa.gov/FlowViewer )
Keeps max, mean, and 95th pct. for up to three years for any predefined
customer (defined by a flow-tool filter and stored in RRDtool). Can group
customers for visual comparison.
Joe
"Rodriguez, Mauricio"
[EMAIL PROTECTED] wrote on 10/30/2007 04:59:05 PM:
> 2. Open Source Tools that you use or would recommend (I know the
> obvious smokeping, mrtg, nagios).
As mentioned, you can get alot of network information from netflow. There
are several open-source options. One such for netflow collection/a
[EMAIL PROTECTED] wrote on 01/02/2008 10:13:52 AM:
> The 196.77 million figure is approxmately 19% higher than the 2005 and
> 2006 numbers, which were largely the same.
This is in line with my (un-scientific) observation that the growth of the
default-free routing table grew modestly through 2
Barry Shein <[EMAIL PROTECTED]> wrote on 05/28/2008 11:08:56 PM:
> I'm still curious what a typical $ sale is on one of these cloud
> compute clusters, in orders of magnitude, $1, $10, $100, $1000, ...?
Not sure what a typical sale looks like, but
Single virtual instance: ~ $72/month
from AWS:
>From a colleague here at NASA (high-performance computing area):
"We are currently using our three Arista switches as
an extremely economical way to get a 10G non-blocking
testbed for our various test areas. We have every
intention of looking at them as an option for
their routing capabilities,
"Babak Pasdar" wrote on 11/16/2009 02:37:10 PM:
> Could some of you share your recommendations on the best tools for
> monitoring per AS communications. I would like to track all source
> AS to Destination AS traffic utilization.
Another netflow open-source solution is flow-tools/FlowViewer.
Thomas Boutrell's 'GD'.
http://www.libgd.org/Main_Page
Joe
From:
Max Pierson
To:
nanog group
Date:
02/18/2011 02:15 PM
Subject:
Graph Utils (Open-Source)
Hi List,
Anyone out there using something other than rrdtool for creating graphs??
I
have a project that will need a trend taken, and
Max Pierson wrote on 02/21/2011 04:15:46 PM:
> Unfortunately, I'm not savvy with Java at all, so the really cool viz
API's
> wont work for me (there's just something about Java ... I simply can't
get
> into it and I see alot of Java based apps that are resource hogs). I was
> looking at mostly
reate textual
reports, graphical
reports, or long-term tracking reports on any specified subset of their
network traffic.
FlowViewer v3.4 can be downloaded from:
http://ensight.eos.nasa.gov/FlowViewer/
Regards,
Joe Loiacono
"Curran, David" wrote on 04/21/2011 08:52:29
AM:
> ... it also strikes me that on the aggregate
> the graphs do indeed show a significant increase around the "holidays"
> (the US ones anyway).
Another bias? :-)
Seems Internet participants took some time off for Christmas:
http
Bernhard Schmidt wrote on 05/12/2011 06:27:38 AM:
> Anthony Francis - Handy Networks LLC wrote:
>
> > I can confirm full IPV6 connectivity from HE.
>
> How can you confirm that when HE just admitted to be lacking IPv6 routes
> from Cogent and a couple of other players?
Anyone know roughly the
Jeroen Massar wrote on 05/12/2011 09:19:21 AM:
> On 2011-May-12 15:14, Joe Loiacono wrote:
> > Anyone know roughly the current default-free routing table size for
IPv6?
>
> http://www.sixxs.net/tools/grh/status/
Awesome web-site. The world of IPv6 routing on one page.
>
"Stefan Fouant" wrote on 05/18/2011
04:19:26 PM:
> > Lets say you had a file that was 1,000,000,000 characters consisting
of
>
> http://www.riverbed.com/us/
>
http://www.juniper.net/us/en/products-services/application-acceleration/wxc-
> series/
>
http://www.cisco.com/en/US/products/ps5680/
Check out FlowViewer:
http://flowviewer.net/
On 2/27/2025 9:40 PM, KARIM MEKKAOUI wrote:
Hi Nanog Community
We’re looking for a (open source, free, cost effective) tool that is
able to analyze traffic flow coming from a couple of router interfaces
and display capacity utilisation per IP, top
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