Unfortunately I cannot move to the latest kernel since Freescale does not
yet support it. I worked around the issue by using a bridge in my setup to
eliminate the subnet.  Not a solution, just a workaround.
Thanks for your update, I will move to the latest kernel when I can.


On Mon, Jun 26, 2017 at 9:49 AM, Craig-z <[email protected]>
wrote:

> With he latest kernel updates I haven't seen this issue for a while.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1695829
>
> Title:
>   IP Subnet to internet routing fails 5x/day after latest 16.04 LTS
>   updates
>
> Status in linux package in Ubuntu:
>   Incomplete
>
> Bug description:
>   Since updating Ubuntu 16.04.02 LTS with all latest patches on 6/2, my
>   subnet internet routing is failing 5x+/day for my Windows 10 machine.
>   Unfortunately, Windows 10 is also a moving target, which also updated
>   6/2, about when this problem started. Bug report also filed with MS.
>
>   Why I think it's Ubuntu... When Windows 10 based web pages stop
>   loading, email stops transmitting, and internet-based CAD licensing
>   stops working, I can get everything working like new again by typing
>   "firehol start", which refreshes iptables entries.  So I suspect the
>   issue might be related to either the Linux kernel or iptables.
>
>   I also see another bug dated 2-Jun-2017 for IP subnet routing, but
>   that one is running on an ARM processor.  Mine is AMD FX-8120, Ubuntu
>   16.04.2 LTS x64. The reported problem sounds similar.
>
>   I performed an IP Tables dump during "operating" and "not routing"
>   states.  I can't see any difference between the two dumps, but running
>   firehol start clears the problem.
>
>   While in the "problem state", my Ubuntu server does have internet
> connectivity.  i.e. Loading web pages on Firefox on the Server/router does
> work.  On the "routed" Windows 10 machine, what doesn't work are; ping
> (internet), Firefox (internet), Thunderbird (internet)...  From the Windows
> 10 machine what does work are; ping (server), Firefox (server apache web
> pages), Thunderbird (server imaps accounts).  So the Windows 10 machine
> still has full server access over gigabit ethernet, but can't see any
> internet based services, where IP routing is required to succeed.  "firehol
> start" restores routing until for a brief time when the Windows machine is
> busy accessing the internet.  Routing stayed up all night when there was no
> Windows 10 internet routing activity.  Resuming activity in the morning
> caused a quick routing failure.
>   ---
>   ApportVersion: 2.20.1-0ubuntu2.6
>   Architecture: amd64
>   AudioDevicesInUse:
>    USER        PID ACCESS COMMAND
>    /dev/snd/controlC1:  craig      7726 F.... pulseaudio
>    /dev/snd/controlC0:  craig      7726 F.... pulseaudio
>   DistroRelease: Ubuntu 16.04
>   HibernationDevice: RESUME=UUID=5967ff24-0a8c-4a29-bd33-408fc996d7a5
>   InstallationDate: Installed on 2016-06-13 (357 days ago)
>   InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release
> amd64 (20160420.3)
>   MachineType: To be filled by O.E.M. To be filled by O.E.M.
>   Package: linux (not installed)
>   ProcEnviron:
>    LANGUAGE=en_US
>    TERM=xterm-256color
>    PATH=(custom, no user)
>    LANG=en_US.UTF-8
>    SHELL=/bin/bash
>   ProcFB: 0 nouveaufb
>   ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-78-generic
> root=UUID=5764c9d8-e512-48d9-8496-58db180684ac ro
>   ProcVersionSignature: Ubuntu 4.4.0-78.99-generic 4.4.62
>   PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
> PulseAudio daemon running, or not running as session daemon.
>   RelatedPackageVersions:
>    linux-restricted-modules-4.4.0-78-generic N/A
>    linux-backports-modules-4.4.0-78-generic  N/A
>    linux-firmware                            1.157.10
>   RfKill:
>
>   Tags:  xenial
>   Uname: Linux 4.4.0-78-generic x86_64
>   UpgradeStatus: No upgrade log present (probably fresh install)
>   UserGroups:
>
>   _MarkForUpload: True
>   dmi.bios.date: 11/24/2011
>   dmi.bios.vendor: American Megatrends Inc.
>   dmi.bios.version: 0901
>   dmi.board.asset.tag: To be filled by O.E.M.
>   dmi.board.name: SABERTOOTH 990FX
>   dmi.board.vendor: ASUSTeK COMPUTER INC.
>   dmi.board.version: Rev 1.xx
>   dmi.chassis.asset.tag: To Be Filled By O.E.M.
>   dmi.chassis.type: 3
>   dmi.chassis.vendor: To Be Filled By O.E.M.
>   dmi.chassis.version: To Be Filled By O.E.M.
>   dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0901:bd11/24/2011:
> svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:
> rvnASUSTeKCOMPUTERINC.:rnSABERTOOTH990FX:rvrRev1.xx:
> cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
>   dmi.product.name: To be filled by O.E.M.
>   dmi.product.version: To be filled by O.E.M.
>   dmi.sys.vendor: To be filled by O.E.M.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/linux/+bug/
> 1695829/+subscriptions
>


-- 
Dan McLane
www.phasemargin.com
p ++1 310.997.8176

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https://bugs.launchpad.net/bugs/1695829

Title:
  IP Subnet to internet routing fails 5x/day after latest 16.04 LTS
  updates

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