Draytek Vigor2930 Series User Manual page 89

the protocol types greater than 100 are reserved and undefined at
this time. Therefore, the router should have ability to detect and
reject this kind of packets.
Warning Messages We provide Syslog function for user to retrieve message from Vigor
router. The user, as a Syslog Server, shall receive the report sending
from Vigor router which is a Syslog Client.
All the warning messages related to DoS Defense will be sent to
user and user can review it through Syslog daemon. Look for the
keyword DoS in the message, followed by a name to indicate what
kind of attacks is detected.
Vigor2930 Series User's Guide 81