On Thu, 26 Oct 2017, Jarryd Sullivan wrote:
G'day, wondering if anyone else here has recently been experiencing
issues with any of their customers running Telstra 3G/4G services using
Citrix or VPN's? We've got a number of customers experiencing issues
where these no longer work, Citrix apps won't launch, VPN's won't
establish etc. and we've been discussing on the phone with Telstra no
one seems to be aware of any issues so trying to find out if it's just
isolated to our customers. I've got a few customers at remote sites
which rely upon 3G/4G services as their only internet connection method
as nothing else is available in the area. If we test using other
providers 3G/4G services there seem to be no issues.
Few weeks ago (13/Oct) I had a bunch of 3G/4G devices on telstra all
failed at 2am. Only affected devices on one particular netblock (1.129/16
from memory).
Devices on 1.144/16 were unaffected.
Symptoms were VPN tunnels made from the devices to my servers all dropped
and failed to re-establish. Each device required a powercycle to fix (a
right royal PITA when many were in difficult-to-access locations).
Telstra confirmed with me that this was a "planned outage" for an upgrade
to one of two Sydney POPs. I never got to the bottom of the problem, but
telstra said they did find some issue and were going to try to fix that.
Then again a week ago (19/Oct) at 3am, the same issue but this time only
affecting devices on 1.144/16 and not affecting 1.129/16. Telstra have
failed to respond to my email to confirm if this was them updating the
second POP or not, but it seems highly likely. This time I had a sneeky
backdoor to my devices and was able to instruct them remotely to kill and
restart the VPN. Most came back after that, a small number required site
visits.
R.
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