Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.17 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.17-rc5 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1771222 Title: Using sysctl to permanently disable IPv6 doesn't have any effect Status in linux package in Ubuntu: Incomplete Bug description: Shows up in version 18.04 of Ubuntu. I added the following 2 lines in /etc/sysctl.d/99-sysctl.conf and /etc/sysctl.d/01-disable-ipv6.conf: ``` net.ipv6.conf.all.disable_ipv6=1 net.ipv6.conf.default.disable_ipv6=1 ``` Rebooting my machine sets those parameters for "all" and "default" but not for the sysctl options of my network interface: ``` net.ipv6.conf.all.disable_ipv6 = 1 net.ipv6.conf.default.disable_ipv6 = 1 net.ipv6.conf.ens160.disable_ipv6 = 0 ``` I use disable_ipv6 above as an example. I've also verified this with the promote_secondaries option of ipv4. I can always restart systemd-sysctl.service at every boot and this will set net.ipv6.conf.ens160.disable_ipv6 to 1. Unfortunately though this won't work for devices that are hot-plugged. Other info: - version signature: Ubuntu 4.15.0-20.21-generic 4.15.17 - lspci is attached To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1771222/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
