Update cheatsheets

arping

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# arping
+
+> Discover and probe hosts in a network using the ARP protocol.
+> Useful for MAC address discovery.
+> More information: <https://github.com/ThomasHabets/arping>.
+
+- Ping a host by ARP request packets:
+
+`arping {{host_ip}}`
+
+- Ping a host on a specific interface:
+
+`arping -I {{interface}} {{host_ip}}`
+
+- Ping a host and [f]inish after the first reply:
+
+`arping -f {{host_ip}}`
+
+- Ping a host a specific number ([c]ount) of times:
+
+`arping -c {{count}} {{host_ip}}`
+
+- Broadcast ARP request packets to update neighbours' ARP caches ([U]nsolicited ARP mode):
+
+`arping -U {{ip_to_broadcast}}`
+
+- [D]etect duplicated IP addresses in the network by sending ARP requests with a 3 second timeout:
+
+`arping -D -w {{3}} {{ip_to_check}}`