Package: nmap
Version: 7.95+dfsg-2
Severity: normal
X-Debbugs-Cc: deb...@rocketjump.eu

Hello,

$ ping -c 3 2a01:4f8:231:161c::1
PING 2a01:4f8:231:161c::1 (2a01:4f8:231:161c::1) 56 data bytes
64 bytes from 2a01:4f8:231:161c::1: icmp_seq=1 ttl=58 time=21.4 ms
64 bytes from 2a01:4f8:231:161c::1: icmp_seq=2 ttl=58 time=20.9 ms
64 bytes from 2a01:4f8:231:161c::1: icmp_seq=3 ttl=58 time=20.9 ms

--- 2a01:4f8:231:161c::1 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2004ms
rtt min/avg/max/mdev = 20.920/21.073/21.357/0.200 ms
$ nmap -6 2a01:4f8:231:161c::1
Starting Nmap 7.95 ( https://nmap.org ) at 2025-02-19 16:58 CET
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 0.10 seconds

I'd expect nmap to show the host as up since I can ping that address. Using -Pn
scan the host and shows the open ports correctly.

Greets,
Lee

-- System Information:
Debian Release: trixie/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 6.12.12-amd64 (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages nmap depends on:
ii  libc6          2.40-6
ii  libgcc-s1      14.2.0-16
ii  liblinear4     2.3.0+dfsg-5+b2
ii  liblua5.4-0    5.4.7-1+b2
ii  libpcap0.8t64  1.10.5-2
ii  libpcre2-8-0   10.44-5
ii  libssh2-1t64   1.11.1-1
ii  libssl3t64     3.4.0-2
ii  libstdc++6     14.2.0-16
ii  nmap-common    7.95+dfsg-2
ii  zlib1g         1:1.3.dfsg+really1.3.1-1+b1

nmap recommends no packages.

Versions of packages nmap suggests:
pn  ncat    <none>
pn  ndiff   <none>
pn  zenmap  <none>

-- no debconf information

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