[SI-LIST] : More on si-list malfunction

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From: Ray Anderson (raymonda@radium.eng.sun.com)
Date: Fri Nov 19 1999 - 10:10:02 PST


Not exactly signal integrity, though it does seem some signals are
losing their integrity on the internet. It seems that the strange
actions of si-list are continuing today. I've done some checking
behind the scenes and have come to the conclusion that the list is
functioning properly but that the internet is "broken".

Specifically, their appears to be a "rogue" router on the net that has
chosen to snap up a lot of the si-list traffic and then forward it. This
is happening in addition to the mail being relayed via the normal route.
The end result is subscribers (or at least most of them) are receiving
one "original" message from si-list plus one "rogue" message with the
same content but relayed through a misconfigured router or server.

A system known as "ntserver1.highspeedsolutions.com" (should've know "NT"
had something to do with it :) is mysteriously inserting itself into the
routing path. The headers don't provide any real clue on how the traffic is
getting there. The insidious part is that besides forwarding an extra message to
the intended recipient it also sends a bounced copy back to the list to
be resent again and again and again ... (up to about a maximum of 21 times
before the system desides a loop exists and gives up.

Sorry for the spurious traffic from the list, but steps are being taken
to fix the problem.

-Ray Anderson
Sun Microsystems Inc.

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