** Description changed: - When a tun-based VPN is using the subnet topology, the communication - between clients can confuse the routing code that will wrongly emit ICMP - redirects. This problem is very well described here - http://backreference.org/2010/05/02/controlling-client-to-client- - connections-in-openvpn/. The same link also provides the workaround - (disable ICMP redirect on the TUN device). + [Impact] + <fill me in with explanation of severity and frequency of bug on users and justification for backporting the fix to the stable release> + + [Development Fix] + <fill me in with an explanation of how the bug has been addressed in the development branch, including the relevant version numbers of packages modified in order to implement the fix. > + + [Stable Fix] + <fill me in by pointing out a minimal patch applicable to the stable version of the package.> + + [Text Case] + <fill me in with detailed *instructions* on how to reproduce the bug. This will be used by people later on to verify the updated package fixes the problem.> + 1. + 2. + 3. + Broken Behavior: + Fixed Behavior: + + [Regression Potential] + <fill me in with a discussion of likelihood and potential severity of regressions and how users could get inadvertently affected. + + [Original Report] + When a tun-based VPN is using the subnet topology, the communication between clients can confuse the routing code that will wrongly emit ICMP redirects. This problem is very well described here http://backreference.org/2010/05/02/controlling-client-to-client-connections-in-openvpn/. The same link also provides the workaround (disable ICMP redirect on the TUN device). This problem affects Lucid to Precise (Hardy's version does not support the subnet mode). ProblemType: Bug DistroRelease: Ubuntu 11.04 Package: openvpn 2.1.3-2ubuntu3 ProcVersionSignature: Ubuntu 2.6.38-13.53-generic 2.6.38.8 Uname: Linux 2.6.38-13-generic x86_64 Architecture: amd64 Date: Thu Dec 22 11:34:08 2011 ProcEnviron: - LANGUAGE=en_US:en - LANG=en_US.UTF-8 - SHELL=/bin/bash + LANGUAGE=en_US:en + LANG=en_US.UTF-8 + SHELL=/bin/bash SourcePackage: openvpn UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/907828 Title: tun-based VPNs using the "subnet" topology are wrongly sending ICMP redirects To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openvpn/+bug/907828/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
