Putting the parts together – Netopia 3300 User Manual

Page 289

Advertising
background image

Security 10-25

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 those
protocols are used.

Src. Port: The source por t to match. This is the por t on the sending host that originated the packet.

D. Port: The destination por t to match. This is the por t on the receiving host for which the packet is intended.

On?: Displays Yes when the filter is in effect or No when it is not.

Fwd: Shows whether the filter for wards (Yes) a packet or discards (No) it when there’s a match.

Protocol

Number to use

Full name

N/A

0

Ignores protocol type

ICMP

1

Internet Control Message Protocol

TCP

6

Transmission Control Protocol

UDP

17

User Datagram 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 |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
+----------------------------------------------------------------------+

Advertising