[Bug 1003326] [NEW] IPv6 hosts incorrectly reported down

[Kasper Dupont]

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

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https://bugs.launchpad.net/bugs/1003326

Title:
  IPv6 hosts incorrectly reported down

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