Update cheatsheets

tldr/ping6.py

@@ -0,0 +1,18 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ping6.py
+
+> Simple ICMPv6 ping using Impacket to check if an IPv6 host is reachable.
+> Sends ICMPv6 echo requests and listens for echo replies. Requires root privileges for raw socket access (e.g., run with `sudo`).
+> More information: <https://github.com/fortra/impacket>.
+
+- Ping an IPv6 host from a specified source IPv6 address:
+
+`ping6.py {{source_ipv6}} {{destination_ipv6}}`
+
+- Ping 2001:db8::2 from 2001:db8::1:
+
+`ping6.py 2001:db8::1 2001:db8::2`