Draytek VIGOR120 Guide de l'utilisateur télécharger pdf (Page 54)

Vigor120 Series User’s Guide

Block Unknown

Protocol

Check the box to activate the Block Unknown Protocol function.

Individual IP packet has a protocol field in the datagram header to

indicate the protocol type running over the upper layer. However,

the protocol types greater than 100 are reserved and undefined at

this time. Therefore, the modem should have ability to detect and

reject this kind of packets.

Warning Messages We provide Syslog function for user to retrieve message from Vigor

modem. The user, as a Syslog Server, shall receive the report

sending from Vigor modem 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.

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Draytek VIGOR120 Guide de l'utilisateur Page 54