ZyWALL 2 and ZyWALL 2WE

Table 19-3 TCP/IP Filter Rule Menu Fields

FIELD

DESCRIPTION

OPTIONS

 

 

 

IP Mask

Enter the IP mask to apply to the Destination: IP Addr.

0.0.0.0

 

 

 

Port #

Enter the destination port of the packets that you wish to filter.

0-65535

 

The range of this field is 0 to 65535. This field is ignored if it is

 

 

0.

 

Port # Comp

Press [SPACE BAR] and then [ENTER] to select the

None

 

comparison to apply to the destination port in the packet

Less

 

against the value given in Destination: Port #.

Greater

 

 

Equal

 

 

Not Equal

Source

 

 

 

 

 

IP Address

Enter the source IP Address of the packet you wish to filter.

0.0.0.0

 

This field is ignored if it is 0.0.0.0.

 

 

 

 

IP Mask

Enter the IP mask to apply to the Source: IP Addr.

0.0.0.0

 

 

 

Port #

Enter the source port of the packets that you wish to filter. The

0-65535

 

range of this field is 0 to 65535. This field is ignored if it is 0.

 

Port # Comp

Press [SPACE BAR] and then [ENTER] to select the

None

 

comparison to apply to the source port in the packet against

Less

 

the value given in Source: Port #.

Greater

 

 

Equal

 

 

Not Equal

TCP Estab

This field is applicable only when the IP Protocol field is 6,

Yes

 

TCP. Press [SPACE BAR] and then [ENTER] to select Yes, to

No

 

have the rule match packets that want to establish a TCP

 

 

connection (SYN=1 and ACK=0); if No, it is ignored.

 

More

Press [SPACE BAR] and then [ENTER] to select Yes or No. If

Yes

 

Yes, a matching packet is passed to the next filter rule before

No

 

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.

 

19-8

Filter Configuration