Public bug reported: When trying to scan an IPv6 host I got this error:
Starting Nmap 5.21 ( http://nmap.org ) at 2012-05-23 11:34 CEST Note: Host seems down. If it is really up, but blocking our ping probes, try -PN Nmap done: 1 IP address (0 hosts up) scanned in 3.26 seconds The host is responding to pings, but nmap never send any pings to the host. Nmap only send a few TCP packets to the host, however this particular host did not have a TCP stack and does not reply to TCP packets. I don't know if this bug is fixed by upstream updates, but since nmap 6 has been released and has lots of IPv6 updates it is not unlikely that it has been fixed upstream. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: nmap 5.21-1.1ubuntu1 ProcVersionSignature: Ubuntu 3.2.0-24.38-generic 3.2.16 Uname: Linux 3.2.0-24-generic i686 NonfreeKernelModules: nvidia ApportVersion: 2.0.1-0ubuntu7 Architecture: i386 Date: Wed May 23 11:50:16 2012 EcryptfsInUse: Yes InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1) ProcEnviron: LANGUAGE=en_US:en TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: nmap UpgradeStatus: Upgraded to precise on 2012-05-08 (14 days ago) ** Affects: nmap (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 precise -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1003326 Title: IPv6 hosts incorrectly reported down To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nmap/+bug/1003326/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs