Cyclades Marine Instruments 2.3.0 User Manual

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Destination IP address.

Destination network mask.

Select box to invert the target action (i.e., the 
action assigned to the target will be performed to 
all Destination/Mask IPs except to the one just 
defined).

The transport protocol to check. If the numeric 
value is available, select Numeric and type the 
value in the adjacent text input field; otherwise, 
select one of the other options.

Select box to invert the target action (i.e., the 
action assigned to the target will be performed to 
all protocols except to the one just defined). 

The interface where the IP packet should pass. 

Select box to invert the target action (i.e., the 
action assigned to the target will be performed to 
all interfaces except to the one just defined).

Indicates the fragments or unfragmented packets to 
be checked. The firewall (i.e., IP Tables) can check 
for:

- All Packets.
- 2nd, 3rd... fragmented packets.
- Non-fragmented and 1st fragmented packets.

Select from the scrollable list the error message to 
be associated with the rule. ICMP is the internet 
protocol sent in response to errors in TCP/IP 
messages (i.e., IP datagrams or packets), between a 
host and a gateway. The messages are processed by 
the IP software and are transparent to the 
application user.