Table 7-3 Tcp/Ip Filter Rule Menu Fields - ZyXEL Communications ZyXEL ZYWALL10 User Manual

ZyWALL 10 Internet Security Gateway
The following table describes how to configure your TCP/IP filter rule.
FIELD
Active
IP Protocol
IP Source Route
Destination
IP Address
IP Mask
Port #
Port # Comp
Source
IP Address
IP Mask
Port #
Port # Comp
TCP Estab
More
7-8

Table 7-3 TCP/IP Filter Rule Menu Fields

Yes activates the filter rule and No deactivates it.
Protocol refers to the upper layer protocol, e.g., TCP is 6,
UDP is 17 and ICMP is 1. This value must be between 0
and 255. A value of 0 matches ANY protocol.
If Yes, the rule applies to packet with IP source route
option; else the packet must not have source route option.
The majority of IP packets do not have source route.
Enter the destination 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 Destination: IP Addr.
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.
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 65535. This field is ignored if
it is 0.
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. If Yes, the rule matches packets that want to
establish a TCP connection (SYN=1 and ACK=0); if No, it
is ignored.
If Yes, a matching packet is passed to the next filter rule
before an action is taken; if No, the packet is disposed of
DESCRIPTION OPTIONS
Yes/No
0-255
Yes/No
0.0.0.0
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
Filters