UDP Port 111 – sunrpc / portmap (RPC Service Directory)

About UDP Port 111

Port 111 is registered with the Internet Assigned Numbers Authority (IANA) for sunrpc. The IANA description reads: ‘SUN Remote Procedure Call’. This port appears in 32 IDS rules and does not have notable malware activity indicators in our data.

IDS Rule References

32 IDS / security rules reference UDP port 111. Presence in IDS rules does not mean traffic on this port is malicious. These are patterns security tools monitor.

Rule categories (top 1): rpc-portmap-decode (32).

Sample rule descriptions for UDP port 111:

• PROTOCOL-RPC portmap admind request UDP
• PROTOCOL-RPC portmap amountd request UDP
• PROTOCOL-RPC portmap bootparam request UDP
• PROTOCOL-RPC portmap cmsd request UDP
• PROTOCOL-RPC portmap mountd request UDP

Data Sources

This information is compiled from: IANA Service Name and Transport Protocol Port Number Registry and Snort Community Rules (GPLv2).