Garmin HM210DP/DI Modem User Manual


 
Configuring Firewall Settings
80 EN/LZT 108 6492 R2 - October 2003
they are initiated.
Max Single Host
Conn.:
Sets the percentage of concurrent IP sessions
that can originate from a single computer. This
percentage should take into account the number
of hosts on the LAN.
Log Destination:
Specifies how attempted violations of the firewall
settings will be tracked. Records of such events
can be sent out via Ethernet to be handled by a
system utility Ethernet to (Trace) or can be e-
mailed to specified administrators.
E-Mail ID of Admin
1/2/3:
Specifies the e-mail address(es) of the
administrator(s) who should receive notices of
any attempted firewall violations. Type the
address(es) in standard internet e-mail address
format, e.g.
j.smith@onecompany.xom
The e-mail message will contain the time of the
violation, the source address of the computer
responsible for the violation, the destination IP
address, the protocol being used, the source and
destination ports, and the number of violations
occurring the previous 30 minutes. If the ICMP
protocol were being used, then instead of the
source and destination ports, the e-mail will
report the ICMP code and type.
3. Click the Submit button.
4. Select Admin > Commit & Reboot and click the Commit button to
save your changes to permanent storage.
11.2 Configuring IP Filters
When you define an IP filter rule and enable the feature, you instruct the
HM210dp/di to examine each data packet it receives to determine whether
it meets criteria set forth in the rule. The criteria can include the size of the
packet, the network or internet protocol it is carrying, the direction in which
it is traveling (for example from the LAN to the Internet or vice versa), the IP
address of the sending computer, the destination IP address, and other
characteristics of the packet data.
If the packet matches the criteria established in a rule, the packet can either
be accepted (forwarded towards its destination) or denied (discarded)
depending on the action specified in the rule.