// REFERENCE
Port 427 (SLP)
Protocol: TCP/UDP
Service: SLP
High risk
SLP: service discovery on the LAN. Exposed it's a massive DDoS amplification vector (CVE-2023-29552) and shows up in VMware ESXi hit by ransomware. Don't expose it.
Related tools
Work with this in:
Related
67
Port 67 (DHCP server) 68
Port 68 (DHCP client) 123
Port 123 (NTP) 161
Port 161 (SNMP) 162
Port 162 (SNMP Trap) 179
Port 179 (BGP)
Port 67 (DHCP server) 68
Port 68 (DHCP client) 123
Port 123 (NTP) 161
Port 161 (SNMP) 162
Port 162 (SNMP Trap) 179
Port 179 (BGP)
Assignments per the IANA port registry. Educational content.