Re: [Sigtran] SCTP: Heartbeat ack recieved without sending Heartbeat

"Brian F. G. Bidulock" <[email protected]> Mon, 19 Jun 2006 03:05:46 -0600

Newsgroups	gmane.ietf.tsvwg,gmane.ietf.sigtran
Organization	http://www.openss7.org/
Message-ID	<[email protected]>

ash,

ash kat wrote:                               (Sun, 18 Jun 2006 23:14:09)
>
>    But there should be some standardized behavior [Whatever it will be as
>    a result of this discussion] for this scenario.
> 
>    Please let me know your opinion about this.

At one time there was some (more) mention of this in the I-G (which became
RFC 4460) because at early interops hacking the other implementation's HB
was a popular passtime, however, it was removed at some point along the way
(I'm not sure why).

IMO there should be some mention, as a hacked HB-ACK could cause an
implementation to overrun its congestion window, posing both a security risk
as well as a risk to the Internet.

--brian

-- 
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/