Nortel 252 Configuration page 141

Table 31 TCP/IP Filter Rule Menu fields
Field
IP Mask
Port #
Port # Comp
Source
IP Address
IP Mask
Port #
Port # Comp
TCP Estab
More
Log
Nortel Business Secure Router 252 Configuration — Advanced
Description
Enter the IP mask to apply to the Destination: IP
Addr.
Enter the destination port of the packets that you
wish to filter. The range of this field is 0 to 65 535.
This field is ignored if it is 0.
Press [SPACE BAR] and then [ENTER] to select the
comparison to apply to the destination port in the
packet against the value given in Destination: Port
#.
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.
Enter the source port of the packets that you wish to
filter. The range of this field is 0 to 65 535. This field
is ignored if it is 0.
Press [SPACE BAR] and then [ENTER] to select the
comparison to apply to the source port in the packet
against the value given in Source: Port #.
This field is applicable only when the IP Protocol field
is 6, TCP. Press [SPACE BAR] and then [ENTER] to
select Yes to have the rule match packets that want
to establish a TCP connection (SYN=1 and ACK=0);
if No, it is ignored.
Press [SPACE BAR] and then [ENTER] to select
Yes or No. 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.
Press [SPACE BAR] and then [ENTER] to select a
logging option from the following:
None – No packets are logged.
Action Matched - Only packets that match the rule
parameters are logged.
Action Not Matched - Only packets that do not
match the rule parameters are logged.
Both – All packets are logged.
Chapter 11 Filter configuration 141
Options
0.0.0.0
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