nanog mailing list archives
Re: Denial of service attacks apparently from UUNET Netblocks
From: "Jay R. Ashworth" <jra () scfn thpl lib fl us>
Date: Tue, 7 Oct 1997 22:50:44 -0400
On Tue, Oct 07, 1997 at 06:20:01PM -0700, Dalvenjah FoxFire wrote: [ David Lesher:]
Just want to make sure all parties here do not think ANI == CNID. They are different critters. You get CNID usually. Real time ANI is available on 800 trunks, but at a cost.I realize this is probably something one learns in Telco 101, which I haven't taken, but if CNID == Caller ID, wouldn't ANI be *more* useful?
Sometimes. CNID bounces around with forwarded calls, as was pointed out to me in private mail earlier today, whilst ANI will be from the _last_ site in a forwarding chain -- since that's the only place an INWATS subscriber is paying for a call from.
Or does CNID report the number regardless of Caller-ID blocking on PRI lines/etc?
No, CNID is Caller-ID. Blocking is _supposed_ to be implemented by the _terminating_ end office. If you receive your traffic over dedicated trunks from an IXC, rather than a LEC, you're not _supposed_ to get it... but I'd be unsurprised if some IXC's get this wrong. I _would_ be surprised if many LEC's were blowing this.
(I'm assuming that CNID == standard Caller-ID as it appears on POTS, and that ANI == the special service that 800-lines get that *always* reports the number, regardless of blocking..if I'm wrong, I'll accept the LART.)
You assume correctly. Cheers, -- jra -- Jay R. Ashworth jra () baylink com Member of the Technical Staff Unsolicited Commercial Emailers Sued The Suncoast Freenet "People propose, science studies, technology Tampa Bay, Florida conforms." -- Dr. Don Norman +1 813 790 7592
Current thread:
- Re: Denial of service attacks apparently from UUNET Netblocks, (continued)
- Re: Denial of service attacks apparently from UUNET Netblocks John A. Tamplin (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Kevin Smith (Oct 07)
- Message not available
- Re: Denial of service attacks apparently from UUNET Netblocks Jay R. Ashworth (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Kevin Smith (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Alex Przekupowski (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Eric Wieling (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Joe Shaw (Oct 08)
- Message not available
- Re: Denial of service attacks apparently from UUNET Netblocks Jay R. Ashworth (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks David Lesher (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Dalvenjah FoxFire (Oct 07)
- Message not available
- Re: Denial of service attacks apparently from UUNET Netblocks Jay R. Ashworth (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks John A. Tamplin (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Greg A. Woods (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks David Lesher (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks David Lesher (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Karl Denninger (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Joe Shaw (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Brett Frankenberger (Oct 07)
- Re: Denial of service attacks apparently from UUNET Netblocks Karl Denninger (Oct 08)
- Re: Denial of service attacks apparently from UUNET Netblocks Dan Foster (Oct 07)