Understanding H.323 ALG DoS Attack Protection

You can protect the H.323 gatekeeper from denial-of-service (DoS) flood attacks by limiting the number of Registration, Admission, and Status (RAS) messages per second it will attempt to process. Incoming RAS request messages exceeding the threshold you specify are dropped by H.323 Application Layer Gateway (ALG). The range is 2 to 50,000 messages per second, the default value is 1000.

Related Topics

• JUNOS Software Feature Support Reference for SRX Series and J Series Devices
• Understanding H.323 ALGs
• H.323 ALG Configuration Overview
• Example: Configuring H.323 ALG DoS Attack Protection