30 Sep
2014
30 Sep
'14
2:15 p.m.
This new router seems to broadcast a number of packet
types that the
IP stack on the Annex was not designed to handle. The buffers
containing these packets appear to be leaked and the memory loss
eventually causes the Annex to hang hard. This happens about every
40 hours. A power cycle will bring it back. A bit of googling seems
to indicate that I am running the latest official firmware (from
1995?). I can't seem to find any web discussion of the Annex more
recent than 2004. I wondered whether anyone here might know of some
trick or some small remaining community of users of the Annex. I
know that it has something to do with traffic from the new router
because if I isolate it on a subnet by itself it still runs fine with
no memory loss.
Nortel discontinued the line about then, if memory serves. You might
try asking Doug Jones <dcjones at netdesc.com>. He was providing some
support for Annexen after Nortel quit.
Honestly, the easiest thing to do is probably to throw one of the small
board computers at being a packet filter, though.
What model do you have?
De
30 Sep
30 Sep
2:59 p.m.
Finding updates to the firmware is probably a non-starter. You could build
an active router/firewall for it that filtered the offending packets.
On Tue Sep 30 2014 at 5:27:09 PM Dennis Boone <drb at msu.edu> wrote:
This new
router seems to broadcast a number of packet types that the
IP stack on the Annex was not designed to handle. The buffers
containing these packets appear to be leaked and the memory loss
eventually causes the Annex to hang hard. This happens about every
40 hours. A power cycle will bring it back. A bit of googling seems
to indicate that I am running the latest official firmware (from
1995?). I can't seem to find any web discussion of the Annex more
recent than 2004. I wondered whether anyone here might know of some
trick or some small remaining community of users of the Annex. I
know that it has something to do with traffic from the new router
because if I isolate it on a subnet by itself it still runs fine with
no memory loss.
Nortel discontinued the line about then, if memory serves. You might
try asking Doug Jones <dcjones at netdesc.com>. He was providing some
support for Annexen after Nortel quit.
Honestly, the easiest thing to do is probably to throw one of the small
board computers at being a packet filter, though.
What model do you have?
De
3:40 p.m.
In article <20140930211512.59122A58051 at yagi.h-net.msu.edu>,
Dennis Boone <drb at msu.edu> writes:
Honestly, the easiest thing to do is probably to throw
one of the small
board computers at being a packet filter, though.
Or maybe customize the WRT software installed on the router?
Isn't WRT open source?
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4:24 p.m.
Richard wrote:
Or maybe customize the WRT software installed on the
router?
Yes, I was thinking about that too. There's a guy called "Merlin"
who customizes it. I have not exactly identified the offending
traffic. I'm not sure what I would lose if various "subsystems"
in the router were disabled.
Isn't WRT open source?
Yes.
Bill S.
4:21 p.m.
Dennis Boone wrote:
You might try asking Doug Jones <dcjones at
netdesc.com>.
I'll give that a try.
Honestly, the easiest thing to do is probably to throw
one of the small
board computers at being a packet filter, though.
At that point, I'll probably just switch to a linux box, a couple of USB
hubs and a bunch of USB<>serial dongles. Somebody has probably already
written a generic POSIX terminal server program... if not, I can hack one
up myself.
What model do you have?
MicroAnnex XL. 8 serial ports, I can't quite get to it to look at the
label on the back to get the exact model number. In addition to 10baseT,
I think it has thickwire.
Bill S.
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