Subject: RE: [Sigtran] SCTP: Heartbeat ack recieved without sending Heartbeat

From: "Schwarzbauer, Hanns Juergen" <[email-masked]>
Date: Fri, 16 Jun 2006 11:22:27 +0200

Hi,
 
this question should go to the TSVWG list ([email-masked]), as SCTP is
discussed there.
Do you think about a new kind of attack here?
 
greetings
 
HannsJuergen

________________________________

	From: ash kat [mailto:[email-masked]] 
	Sent: Friday, June 16, 2006 11:10 AM
	To: [email-masked]
	Subject: [Sigtran] SCTP: Heartbeat ack recieved without sending
Heartbeat

	Hi All
	 
	What should be the behavior of SCTP when an endpoint recieved a
Heartbeat-ack from peer when it has not sent any heartbeat to peer?
	 
	Is RFC 2960 say anything about this?
	 
	If Not then What is the proper solution:
	1. The Endpoint should drop the message [ ignore the Heartbeat
ack ]
	2. Process the Hearbeat ack as normal.
	3. Send an Abort to peer.
	4. Some other option.....
	 
	Regards,
	Ashwani Kathuria.

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