Videotron EMG2926-Q10A User Manual page 119

Figure 85 Security > Firewall > Services
The following table describes the labels on this screen.
Table 58 Security > Firewall > Services
LABEL DESCRIPTION
ICMP Internet Control Message Protocol is a message control and error-reporting protocol
between a host server and a gateway to the Internet. ICMP uses Internet Protocol (IP)
datagrams, but the messages are processed by the TCP/IP software and are directly
apparent to the application user.
Respond to Ping The EMG2926-Q10A will not respond to any incoming Ping requests when Disable is
on selected. Select LAN to reply to incoming LAN Ping requests. Select WAN to reply to
incoming WAN Ping requests. Select LAN&WAN to reply to all incoming LAN and WAN
Ping requests.
Apply Click Apply to save the settings.
Enable TearDrop Teardrop is a type of DoS (Denial of Service) attack. Teardrop sends IP fragments with
Rule oversized payloads to a machine. This causes fragmented packets to overlap. When these
fragments are reassembled at the destination, the machine can crash, hang, or reboot
due to a bug in the TCP/IP fragmentation reassembly code.
Select this option to have the EMG2926-Q10A automatically detect and thwart Teardrop
attacks.
Apply Click Apply to save the settings.
Enable Firewall Rule
Enable Firewall Select this check box to activate the firewall rules that you have defined (see Add
Rule Firewall Rule below).
Apply Click Apply to save the settings.
Chapter 15 Firewall
EMG2926-Q10A User's Guide
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