Sniff Traffic
tcpdump
Linux (while connected via SSH):
Windows:
Wireshark
Filters
Protocols to consider:
DTP (Dynamic Trunking Protocol)
OSPF (Open Shortest Path First)
SSDP (Simple Service Discovery Protocol)
ARP (Address Resolution Protocol)
LLMNR (Link-Local Multicast Name Resolution)
NBNS (NetBIOS Name Service)
mDNS (Multicast DNS)
ICMPv6 (Internet Control Message Protocol version 6)
DHCPv6 (Dynamic Host Configuration Protocol version 6)
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