Access Control - Planet VRT-402N User Manual

ICMP Broadcasting
Protection
ICMP Redirect Protection
5.2

Access Control

This section shows how to setup the Broadband router's system Time Zone, Password and Remote
Management Administrator.
Check to enable ICMP Broadcasting Protection.
Uncheck to disable ICMP Broadcasting Protection.
ICMP broadcasting attack is a type of DoS attacks. A flood of ICMP broadcasting packets is
generated and sent to a server (like PLANETCom Mobile Router). Consequently, this
server will suffer from a huge amount of interruptions and consumption of computing
resources.
PLANETCom Mobile Router is able to stop responding to ICMP broadcasting echo packets
in order to avoid a potential ICMP broadcasting DoS attack.
Check to enable ICMP Redirect Protection.
Uncheck to disable ICMP Redirect Protection.
An ICMP redirect message is a way to change the existing routing path. Generally, ICMP
redirect packets should not be sent, and so when there is the occurrence that ICMP
redirect packets are sent, it is important to note that it is very likely to be used as a means
for a network attack.
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