Update cheatsheets

ipsumdump

@@ -0,0 +1,21 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ipsumdump
+
+> Summarise TCP/IP dumps into a human and machine readable ASCII format.
+> More information: <https://manned.org/ipsumdump>.
+
+- Print the source and destination IP addresses of all packets in a pcap file:
+
+`ipsumdump --src --dst {{path/to/file.pcap}}`
+
+- Print the timestamps, source address, source port, destination address, destination port and protocol of all packets read from a given network interface:
+
+`ipsumdump --interface {{eth0}} -tsSdDp`
+
+- Print the anonymised source address, anonymised destination address, and IP packet length of all packets in a pcap file:
+
+`ipsumdump --src --dst --length --anonymize {{path/to/file.pcap}}`