Siemens E-110-I - Manual (Page 63)

Chapter 4: Advanced Configuration
Field Description
Max Half open TCP Conn. Sets the percentage of concurrent IP sessions that can be in the
half-open state. In ordinary TCP communication, packets are in the
half-open state only briefly as a connection is being initiated; the state
changes to active when packets are being exchanged, or closed when
the exchange is complete. TCP connections in the half-open state can
use up the available IP sessions.
If the percentage is exceeded, then the half-open sessions will be closed
and replaced with new sessions as they are initiated.
Max ICMP Conn. Sets the percentage of concurrent IP sessions that can be used for ICMP
messages.
If the percentage is exceeded, then older ICMP IP sessions will be
replaced by new sessions as the are initiated.
Max Single Host Conn. Sets the percentage of concurrent IP session 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 via Ethernet to be handled
by a system utility Ethernet to (Trace) or can E-mailed to specified
administrators.
E-Mail ID of Admin 1/2/3 Specifies the E-mail addresses of the administrators who should receive
notices of any attempted firewall violations. Type the addresses in
standard Internet E-mail address format, e.g., [email protected].
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 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 [Apply]. A page gives a receipt for the changes.
4. Select Admin > Commit & Reboot and click [Save] to save your changes to permanent storage.
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