Jump to content

This is the support site for Andrews & Arnold Ltd, a UK Internet provider. Information on these pages is generally for our customers but may be useful to others, enjoy!

VMG1312-B10A: Bugs: Difference between revisions

m
 
 
----
 
==UDP Deafness==
====Issue Description====
Seems to sometimes "go deaf" to certain UDP packets, which has the side effect of breaking VPNs and/or DNS in the same way as the BT Huawei modems did (https://aastatus.net/1854). Power cycling clears it. This has been seen on one staff line a couple of times. ZyXEL is in bridge mode, and TCP DUmp on the FireBrick router shows port 53 UDP going out, and a dump on the AAISP end (via Clueless) does not see the packet. It seemed that the ZyXEL had blocked the FireBrick router from sending DNS, yet other machines on the LAN could still send DNS queries successfully.
====Date Reported====
2015-04-07
====Updates====
As this is rather intermittent, we've not yet reported it to ZyXEL - awaiting further examples.
====Resolution====
None yet.
 
----
 
=Template to use for new problems=
autoreview, Bureaucrats, editor, Interface administrators, reviewer, Administrators
12,264

edits