[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
In Ubuntu 10.10 the entry in sysctl.conf was changed to 'net.ipv4.ip_forward=1', uncommenting it alone DO enable the ip routing, and no need to add extra lines. -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
This is still an issue on Ubuntu Server 10.04 ** Changed in: procps (Ubuntu) Status: Incomplete => Confirmed ** Changed in: procps (Ubuntu) Assignee: Yves Junqueira (yves.junqueira) => (unassigned) -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
Dear friends, FYI, this bug is mentioned in https://help.ubuntu.com/community/Internet/ConnectionSharing . Many blessings. -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
Does this bug affects hardy? Is it fixed in hardy? I couldn't find any infos about it's status in 8.04, thats why I'm asking... -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
Sorry was abit quick at clicking "Save Changes". This is how it looks in /etc/sysctl.conf now: # Uncomment the next line to enable packet forwarding for IPv4 #net.ipv4.ip_forward=1 removing the # and running sysctl enables forwarding for me: [EMAIL PROTECTED]:~# cat /proc/sys/net/ipv4/ip_forward 0 [EMAIL PROTECTED]:~# vi /etc/sysctl.conf [EMAIL PROTECTED]:~# sysctl -p kernel.printk = 4 4 1 7 kernel.maps_protect = 1 fs.inotify.max_user_watches = 524288 vm.mmap_min_addr = 65536 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.all.rp_filter = 1 net.ipv4.ip_forward = 1 [EMAIL PROTECTED]:~# cat /proc/sys/net/ipv4/ip_forward 1 -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
I'm using Hardy Heron and I don't believe I've been tinkering with /etc/sysctl.conf. Found this in the file so I believe this is fixed now?: # Comment the next two lines to disable Spoof protection (reverse-path filter) # Turn on Source Address Verification in all interfaces to # prevent some spoofing attacks net.ipv4.conf.default.rp_filter=1 net.ipv4.conf.all.rp_filter=1 -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
I can confirm this bug in Gutsy. I'm using my Ubuntu box as a home internet gateway, and uncommenting that line did not set /proc/sys/net/ipv4/ip_forward to 0 on reboot. -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
I have always found that one needs to set both the "all" and the "default" in order to guarantee the changes affect all interfaces regardless of when those interfaces are created. In the latest hardy version here are the options which only specify "all" and not "default" and "all": # Do not accept ICMP redirects (prevent MITM attacks) #net/ipv4/conf/all/accept_redirects = 0 # _or_ # Accept ICMP redirects only for gateways listed in our default # gateway list (enabled by default) # net/ipv4/conf/all/secure_redirects = 1 # # Do not send ICMP redirects (we are not a router) #net/ipv4/conf/all/send_redirects = 0 # # Do not accept IP source route packets (we are not a router) #net/ipv4/conf/all/accept_source_route = 0 # # Log Martian Packets #net/ipv4/conf/all/log_martians = 1 My suggestions: * these options should have both "all" and "default" specified * clarify "we are not a router" - I have found that these settings can be turned on without issue on NAT "routers" * it might be wise to select either "." or "/" as a separator and not use both -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
This bug report (marked as a duplicate) fixes it for me: https://bugs.launchpad.net/ubuntu/+source/procps/+bug/156017 -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
Hi there, same problem here on Feisty server using a single network interface with static IP address. When I reboot if forwarding is not enabled and I have to enable it manually using: echo "1" > /proc/sys/net/ipv4/ip_forward Do you think upgrading to gutsy will solve the problem? I plan on doing it soon anyway... -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
How is it possible? I can't understand why Canonical (and Debian too) released an OS with this configuration error... very strange... -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
@Kir Kolyshkin Adding net.ipv4.conf.all.forwarding=1 to sysctl.conf solves the problem. The problem is though that in /ets/sysctl.conf it says : # Uncomment the next line to enable packet forwarding for IPv4 #net.ipv4.conf.default.forwarding=1 however uncommenting that line does not enable packet forwarding for IPv4 -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
To Edmunds Kalniņš, Eelko van Breda: What happens if you just set net.ipv4.ip_forward = 1 in /etc/sysctl.conf, and run sysctl -p? To me, the bug looks like a mistype in default /etc/sysctl.conf (i.e. wrong setting). Say, here's the relevant section from Fedora 8: # Controls IP packet forwarding net.ipv4.ip_forward = 0 And this is from Gentoo 2007.0: # Disables packet forwarding #net.ipv4.ip_forward = 0 -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
I can also confirm this problem with the default gutsy server install + OpenVZ kernel (2.6.18-ovz-028stab048.1) -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
I have the same problem as well, running feisty latest updates, init: init (upstart 0.3.8) kernel:2.6.18-ovz-028stab045.1 (OPENVZ kernel) if I put the following line "net.ipv4.conf.all.forwarding=1" in the "/etc/sysctl.conf" file and run "sysctl -p", forwarding is enabled regards, Eelko van Breda -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
I have a similar situation: Running feisty, setting net.ipv4.conf.default.forwarding=1 in /etc/sysctl.conf consistently does not enable IP forwarding in /proc/sys/net/ipv4/ip_forward (always zero). If I add net.ipv4.conf.all.forwarding=1, then it works ok. -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
Hello, On 5/8/07, Yves Junqueira <[EMAIL PROTECTED]> wrote: > Do you still use this system where you were having problems? If so, can > you check if you're using upstart or sysvinit? I have upgraded the system to the latest Ubuntu, but I can try to check these details from the backups. > try running /sbin/init --version and see if it's upstart or else. At the time I was experiencing the problems, the system was an up-to-date Ubuntu edgy, and /sbin/init --version displayed the following: init (upstart 0.2.7) > Also, was that interface using DHCP or static addresses? eth0 uses DHCP, eth1 uses static addresses. I do not know if the bug has been fixed in the latest version of Ubuntu; I am still using the workaround that I mentioned in the original bug report. Kind regards, Jukka Suomela -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 84537] Re: sysctl.conf, net.ipv4.conf.default.forwarding, race condition?
Hi. Thank you for your report. Do you still use this system where you were having problems? If so, can you check if you're using upstart or sysvinit? try running /sbin/init --version and see if it's upstart or else. Also, was that interface using DHCP or static addresses? Usually, at least for upstart, rcS is run before networking scripts, but this needs further testing I guess. I'll see if I can reproduce it myself. ** Changed in: procps (Ubuntu) Assignee: (unassigned) => Yves Junqueira Status: Unconfirmed => Needs Info -- sysctl.conf, net.ipv4.conf.default.forwarding, race condition? https://bugs.launchpad.net/bugs/84537 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
