I have observed this as a more general problem with any sysctl setting for "all" interfaces.
For example, try: sysctl -a | grep '^net\.ipv4\.conf.*send_redirects' sysctl -w net.ipv4.conf.all.send_redirects=0 sysctl -a | grep '^net\.ipv4\.conf.*send_redirects' sysctl -w net.ipv4.conf.all.send_redirects=1 sysctl -a | grep '^net\.ipv4\.conf.*send_redirects' It seems that setting conf.all does not have any effect on the individual conf.<interface> settings. This begs the question of what setting conf.all is supposed to do. There is also conf.default which appears to be the value inherited when a new interface is created. To test: sysctl -w net.ipv4.conf.all.send_redirects=1 sysctl -w net.ipv4.conf.default.send_redirects=0 brctl addbr br100 sysctl net.ipv4.conf.br100.send_redirects # it's 0 sysctl -w net.ipv4.conf.all.send_redirects=1 sysctl net.ipv4.conf.br100.send_redirects # it's still 0 sysctl -w net.ipv4.conf.all.send_redirects=0 sysctl -w net.ipv4.conf.default.send_redirects=1 brctl addbr br101 sysctl net.ipv4.conf.br101.send_redirects # it's 1 sysctl net.ipv4.conf.br100.send_redirects # it's still 0 This is sensible. Hence I can see how "default" is useful, but not "all". Above tests done with Ubuntu 12.04.4 running kernel 3.8.0-36-generic -- 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/96578 Title: The sysctl net.ipv6.conf.all.autoconf does not apply to "all" Status in “linux” package in Ubuntu: Confirmed Status in “linux-source-2.6.20” package in Ubuntu: Invalid Bug description: Binary package hint: linux-source-2.6.20 Just specifying: net.ipv6.conf.default.autoconf=0 net.ipv6.conf.all.autoconf=0 in sysctl.conf does not actually disable autoconf. Explicitly setting net.ipv6.conf.eth0.autoconf=0 on the other hand does work (if I've added "ipv6" to /etc/modules, but that's another issue). Our workaround for this is to list enough ethN to cover "all likely" network interfaces, but that's not exactly a neat solution. --- AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21. Architecture: amd64 ArecordDevices: **** List of CAPTURE Hardware Devices **** card 0: Intel [HDA Intel], device 0: AD198x Analog [AD198x Analog] Subdevices: 2/2 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 AudioDevicesInUse: Cannot stat file /proc/4797/fd/11: No such file or directory USER PID ACCESS COMMAND /dev/snd/controlC0: maswan 2400 F.... pulseaudio /dev/snd/pcmC0D0p: maswan 2400 F...m pulseaudio CRDA: Error: [Errno 2] No such file or directory Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf3020000 irq 21' Mixer name : 'Analog Devices AD1884' Components : 'HDA:11d41884,103c2819,00100100' Controls : 30 Simple ctrls : 18 DistroRelease: Ubuntu 10.04 IwConfig: lo no wireless extensions. eth0 no wireless extensions. ppp0 no wireless extensions. MachineType: Hewlett-Packard HP Compaq dc7800 Convertible Minitower NonfreeKernelModules: openafs Package: linux (not installed) ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-33-generic root=/dev/mapper/rootvg-rootlv ro quiet splash ProcEnviron: LANGUAGE=en_US:en PATH=(custom, user) LANG=en_US SHELL=/bin/bash ProcVersionSignature: Ubuntu 2.6.32-33.71-generic 2.6.32.41+drm33.18 Regression: No RelatedPackageVersions: linux-firmware 1.34.7 Reproducible: Yes RfKill: Tags: lucid kconfig needs-upstream-testing Uname: Linux 2.6.32-33-generic x86_64 UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev video voice dmi.bios.date: 02/26/2009 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 786F1 v01.28 dmi.board.asset.tag: CZC84703HB dmi.board.name: 0AACh dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: CZC84703HB dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr786F1v01.28:bd02/26/2009:svnHewlett-Packard:pnHPCompaqdc7800ConvertibleMinitower:pvr:rvnHewlett-Packard:rn0AACh:rvr:cvnHewlett-Packard:ct6:cvr: dmi.product.name: HP Compaq dc7800 Convertible Minitower dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/96578/+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
