Our system is PRI based, not sip. ---- Matthew Huff | One Manhattanville Rd OTA Management LLC | Purchase, NY 10577 http://www.ox.com | Phone: 914-460-4039 aim: matthewbhuff | Fax: 914-460-4139
> -----Original Message----- > From: wher...@gmail.com [mailto:wher...@gmail.com] On Behalf Of William Herrin > Sent: Wednesday, October 06, 2010 11:15 AM > To: Dan White > Cc: Matthew Huff; (nanog@nanog.org) > Subject: Re: Scam telemarketers spoofing our NOC phone number for callerid > > On Wed, Oct 6, 2010 at 10:37 AM, Dan White <dwh...@olp.net> wrote: > > If your PBX is SIP based, you might be victim of a SIP registration hijack, > > which are on the rise, based on traffic we've been seeing in our network. > > I had my unpublished asterisk box up for all of two days before > getting half a megabit per second worth of false SIP registration > attempts. Filled /var/log. I had to write a script to dynamically > filter source IPs with too many failures. > > Regards, > Bill Herrin > > -- > William D. Herrin ................ her...@dirtside.com b...@herrin.us > 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> > Falls Church, VA 22042-3004
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