Filter
Top Products
Prestige 652 ADSL Security Router
Filter Configuration 16-9
Table 16-3 TCP/IP Filter Rule Menu Fields
FIELD DESCRIPTION EXAMPLE
Filter # This is the filter set, filter rule coordinates, for instance, 2, 3 refers to
the second filter set and the third filter rule of that set.
7,1
Filter Type Use [SPACE BAR] and then [ENTER] to choose a rule. Parameters
displayed for each type will be different. Choices are
TCP/IP Filter
Rule
or
Generic Filter Rule
.
TCP/IP Filter
Rule
Active
Use [SPACE BAR] and then [ENTER] to select
Yes
to activate
or
No
to deactivate the filter rule.
No
(default)
IP Protocol This is the upper layer protocol, for example, TCP is 6, UDP is 17
and ICMP is 1. The value must be between 0 and 255. A value of O
matches ANY protocol.
0 to 255
IP Source
Route
IP Source Route is an optional header that dictates the route an IP
packet takes from its source to its destination. If
Yes
, the rule
applies to any packet with an IP source route. The majority of IP
packets do not have source route.
No
(default)
Destination:
IP Addr
Type the destination IP address of the packet you want to filter. This
field is ignored if it is 0.0.0.0.
IP address
IP Mask Type the IP mask to apply to the Destination: IP Addr field. IP mask
Port # Type the destination port of the packets you want to filter. The field
range is 0 to 65535. A 0 field is ignored.
0 to 65535
Port # Comp Select the comparison to apply to the destination port in the packet
against the value given in
Destination: Port #.
Choices are
None
,
Less
,
Greater
,
Equal
or
Not Equal
.
None
Source:
IP Addr
Type the source IP Address of the packet you want to filter. A
0.0.0.0 field is ignored.
IP address
IP Mask
Type the IP mask to apply to the
Source: IP Addr
field.
IP mask
Port # Type the source port of the packets you want to filter. The range of
this field is 0 to 65535. A 0 field is ignored.
0 to 65535
Port # Comp Select the comparison to apply to the source port in the packet
against the value given in
Source: Port #
field. Choices are
None
,
Less
,
Greater
,
Equal
or
Not Equal
.
None
TCP Estab
This applies only when the IP Protocol field is 6, TCP. If
Yes
, the
rule matches packets that want to establish TCP connection(s)
(SYN=1 and ACK=0); else it is ignored.
No
(default)