Other filter attributes, Putting the parts together – Netopia R2121 User Manual
Page 171
Security 14-9
Greater Than or Equal:
For the filter to match, the packet’s por t number must be greater than or equal to the
por t number specified in the filter.
Other filter attributes
There are three other attributes to each filter:
■
The filter’s order (i.e., priority) in the filter set
■
Whether the filter is currently active
■
Whether the filter is set to pass (for ward) packets or to block (discard) packets
Putting the parts together
When you display a filter set, its filters are displayed as rows in a table:
The table’s columns correspond to each filter’s attributes:
#:
The filter’s priority in the set. Filter number 1, with the highest priority, is first in the table.
Source IP Addr:
The packet source IP address to match.
Dest IP Addr:
The packet destination IP address to match.
Proto:
The protocol to match. This can be entered as a number (see the table below) or as TCP or UDP if using
those protocols.
Protocol
Number to use
Full name
N/A
0
Ignores protocol type
ICMP
1
Internet Control Message Protocol
TCP
6
Transmission Control Protocol
+-#---Source IP Addr---Dest IP Addr-----Proto-Src.Port-D.Port--On?-Fwd-+
+----------------------------------------------------------------------+
| 1 192.211.211.17 0.0.0.0 TCP 0 23 Yes No |
| 2 0.0.0.0 0.0.0.0 TCP NC =6000 Yes No |
| 3 0.0.0.0 0.0.0.0 ICMP -- -- Yes Yes |
| 4 0.0.0.0 0.0.0.0 TCP NC >1023 Yes Yes |
| 5 0.0.0.0 0.0.0.0 UDP NC >1023 Yes Yes |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
+----------------------------------------------------------------------+