Measuring data transferred through an interface?

Peter McGarvey fbsu-x at packet.org.uk
Mon Feb 10 14:21:29 GMT 2003


Well, looking for packets of protocol type IPIP (0x04) would be one way.

But as the network guys I work with didn't know this until I told them I
doubt NTL will figure it out any time soon.  

    :-j



* Sam Pikesley <samdavidpikesley at yahoo.co.uk> [2003-02-10 12:56:37 GMT]:
> http://www.dont-pay-ntl.co.uk/
> 
> I wonder how they intend to detect my VPN? ;)
> 
> --- Peter McGarvey <fbsu-x at packet.org.uk> wrote: >
> I've been expecting broadband capping for a while
> > now, so the 1GB limit
> > is no suprise to me.  I've been graphing my
> > connection for the past 6
> > months.  It's remarkable just how little bandwidth
> > I've actually been
> > using.
> > 
> > If you're interested I've been using RRD tool, and a
> > nicel little PHP
> > frontend called cacti:
> > 
> >     http://www.raxnet.net/
> > 
> > But, IMHO, the usage cap is nothing but a nice
> > red-herring.  Have a read
> > of the rest of the revised AUP.
> > 
> > >  ... the ntl Internet and/or Interactive Services
> > are for residential
> > >  use only and we do not support the use of VPN. If
> > we find you are
> > >  using VPN via the ntl IP network we may instruct
> > you to stop using it
> > >  and you must comply with this request. This is in
> > order to prevent
> > >  problems to ntl (eg network performance) and
> > other Internet users.
> > 
> > The background traffic keeping my VPN up is less
> > than the stoopid
> > NetBIOS broadcasts badly configured Windose PCs
> > insist on sending.  Yet
> > somehow I'm casuing performance problems.
> > 
> > I also like this bit.
> > 
> > > You must not connect more than three (3) PC's to
> > the Broadband
> > > Services at any one time.
> > 
> > I understand the need for capping - after all, the
> > latency has been
> > creeping up and up.  But telling me what I can and
> > cannot fill my IP
> > packets with - that sounds like censorship.
> > 
> > 
> > * Jonathan Belson <jon at witchspace.com> [2003-02-09
> > 16:44:27 GMT]:
> > > Hiya
> > > 
> > > 
> > > It seems that NTL are going to be limiting cable
> > users to 1GB a day, which
> > > got me wondering exactly how many bytes I transfer
> > on a daily basis.
> > > 
> > > My cable modem is connected to a server which
> > performs NAT for machines
> > > connected to it.  Since all my external traffic
> > travels through a single
> > > interface, is there an easy way to measure how
> > much data travels through
> > > it?
> > > 
> > > 
> > > --Jon
> > > 
> > > http://www.witchspace.com
> > > 
> > > 
> > > 
> > > ------ FreeBSD UK Users' Group  -  Mailing List
> > ------
> > >
> >
> http://listserver.uk.freebsd.org/mailman/listinfo/freebsd-users
> > > 
> > 
> > -- 
> > TTFN, FNORD
> > 
> > Peter McGarvey
> > Freelance FreeBSD Hacker
> > (will work for bandwidth)
> > 
> > ------ FreeBSD UK Users' Group  -  Mailing List
> > ------
> >
> http://listserver.uk.freebsd.org/mailman/listinfo/freebsd-users 
> 
> =====
> FreeBSD: Because reboots are for hardware upgrades
> 
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-- 
TTFN, FNORD

Peter McGarvey
Freelance FreeBSD Hacker
(will work for bandwidth)




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