Chapter 16 Firewall
EMG2306-R10A User’s Guide
116
16.5 The Services Screen
If an outside user attempts to probe an unsupported port on your EMG2306-R10A, an ICMP
response packet is automatically returned. This allows the outside user to know the EMG2306-R10A
exists. Use this screen to prevent the ICMP response packet from being sent. This keeps outsiders
from discovering your EMG2306-R10A when unsupported ports are probed.
Click Configuration > Security > Firewall > Services to display the following screen.
Figure 65 Configuration > Security > Firewall > Services
The following table describes the labels in this screen.
Table 50 Configuration > Security > Firewall > Services
LABEL DESCRIPTION
ICMPv6 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 directly
apparent to the application user.
Respond to Ping on The EMG2306-R10A will not respond to any incoming Ping requests when Disable is
selected. Select LAN to reply to incoming LAN Ping requests. Select WAN to reply to
incoming WAN Ping requests. Otherwise select LAN & WAN to reply to all incoming
LAN and WAN Ping requests.
Enable Firewall Rule
Enable Firewall Rule Select this check box to enable firewall rule and click Apply.
Add Firewall Rule
Service Name Enter a name that identifies or describes the firewall rule.
MAC Address Enter the MAC address of the computer for which the firewall rule applies.
Dest_IP_Address Enter the IP address of the computer to which traffic for the application or service is
entering.
The EMG2306-R10A applies the firewall rule to traffic initiations from this computer.
Source_IP_Address Enter the IP address of the computer that initializes traffic for the application or service.
The EMG2306-R10A applies the firewall rule to traffic initiating from this computer.
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