Re: Bug#104450: ITP: tcptraceroute -- A traceroute implementation using TCP packets
On Fri, Jul 13, 2001 at 12:14:51PM -0400, David Coe wrote:
> I'm no expert, but from a quick scan of RFC 2481, section "6.1.1. TCP
> Initialization," it sounds to me like the ECN flags in *SYN* packets
> only declare the host's ability to participate in ECN. Since
> tcptraceroute only sends SYN packets (I believe), it doesn't get
> blocked because of ECN.
>
> This is a good thing, I think.
>
Ahh, but is it? How does one track down which device is ECN
blocking? It would be very useful to have something that would
perform traceroute type functionality but show the first device
which was blocking ECN, or flag ECN incompatibility.
Maybe there is already such a creature, and I am speaking from
deep ignorance, but if so, would someone please point me in its
direction?
Jim Penny
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