ZyXEL Communications ZyXEL ZyWALL 50 User Manual page 195

FIELD
Port # Enter the destination port of the packets that you wish
to filter. The range of this field is 0 to 65535. This
field is ignored if it is 0.
Port # Comp Select the comparison to apply to the destination port
in the packet against the value given in Destination:
Port #.
Source
IP Address Enter the source IP Address of the packet you wish to
filter. This field is ignored if it is 0.0.0.0.
Enter the IP mask to apply to the Source: IP Addr.
IP Mask
Port # Enter the source port of the packets that you wish to
filter. The range of this field is 0 to 65535. This field is
ignored if it is 0.
Port # Comp Select the comparison to apply to the source port in
the packet against the value given in Source: Port #.
TCP Estab This field is applicable only when the IP Protocol field
is 6, TCP. If Yes, the rule matches packets that want
to establish a TCP connection (SYN=1 and ACK=0); if
No, it is ignored.
More If Yes, a matching packet is passed to the next filter
rule before an action is taken; if No, the packet is
disposed of according to the action fields.
If More is Yes, then Action Matched and Action Not
Matched will be N/A.
Log Select the logging option from the following:
None – No packets will be logged.
Action Matched - Only packets that match the rule
parameters will be logged.
Action Not Matched - Only packets that do not
match the rule parameters will be logged.
Both – All packets will be logged.
Action Select the action for a matching packet.
Matched
.
Filter Configuration
Table 15-3 TCP/IP Filter Rule Menu Fields
DESCRIPTION
ZyWALL 50 Internet Security Gateway
OPTIONS
0-65535
None/Less/Greater/Equal/Not
Equal]
0.0.0.0
0.0.0.0
0-65535
None/Less/Greater/Equal/Not
Equal
Yes/No
Yes/No
None
Action Matched
Action Not Matched
Both
Check Next Rule
Forward
15-9