P-660R-T Series User’s Guide
185
Chapter 22 Filter Configuration
Figure 120
Executing an IP Filter
Packet
into IP Filter
Matched
Matched
Yes
Action Matched
Action Not Matched
More?
No
Filter Active?
Check
IP Protocol
Drop
Drop Packet
Accept Packet
Drop
Forward
Check Next Rule
Check Next Rule
Check Next Rule
Forward
Not Matched
Yes
No
Check Src
IP Addr
Apply SrcAddrMask
to Src Addr
Matched
Check Dest
IP Addr
Apply DestAddrMask
to Dest Addr
Not Matched
Not Matched
Check Src &
Dest Port
Matched
Not Matched
22.4.2 Generic Filter Rule
This section shows you how to configure a generic filter rule. The purpose of generic rules is
to allow you to filter non-IP packets. For IP, it is generally easier to use the IP rules directly.
For generic rules, the Prestige treats a packet as a byte stream as opposed to an IP packet. You
specify the portion of the packet to check with the
Offset
(from 0) and the
Length
fields, both
in bytes. The Prestige applies the Mask (bit-wise ANDing) to the data portion before
comparing the result against the Value to determine a match. The
Mask
and
Value
fields are
specified in hexadecimal numbers. Note that it takes two hexadecimal digits to represent a
byte, so if the length is 4, the value in either field will take 8 digits, for example, FFFFFFFF.
Содержание ADSL2+ 4-port Gateway P-660H-D Series
Страница 1: ...P 660R T Series ADSL2 Ethernet Gateway User s Guide Version 3 40 6 2005 ...
Страница 23: ...P 660R T Series User s Guide 23 ...
Страница 27: ...P 660R T Series User s Guide 27 ...
Страница 31: ...P 660R T Series User s Guide 31 Introduction to DSL ...
Страница 39: ...P 660R T Series User s Guide 39 Chapter 1 Getting To Know Your Prestige ...
Страница 57: ...P 660R T Series User s Guide 57 Chapter 4 Password Setup ...
Страница 65: ...P 660R T Series User s Guide 65 Chapter 5 LAN Setup ...
Страница 75: ...P 660R T Series User s Guide 75 Chapter 6 WAN Setup ...
Страница 87: ...P 660R T Series User s Guide 87 Chapter 7 Network Address Translation NAT Screens ...
Страница 95: ...P 660R T Series User s Guide 95 Chapter 10 Remote Management Configuration ...
Страница 107: ...P 660R T Series User s Guide 107 Chapter 11 Universal Plug and Play UPnP ...
Страница 127: ...P 660R T Series User s Guide 127 Chapter 14 Menu 1 General Setup ...
Страница 131: ...P 660R T Series User s Guide 131 Chapter 15 Menu 2 WAN Backup Setup ...
Страница 135: ...P 660R T Series User s Guide 135 Chapter 16 Menu 3 LAN Setup ...
Страница 157: ...P 660R T Series User s Guide 157 Chapter 19 Static Route Setup ...
Страница 161: ...P 660R T Series User s Guide 161 Chapter 20 Bridging Setup ...
Страница 177: ...P 660R T Series User s Guide 177 Chapter 21 Network Address Translation NAT ...
Страница 205: ...P 660R T Series User s Guide 205 Chapter 24 System Information and Diagnosis ...
Страница 217: ...P 660R T Series User s Guide 217 Chapter 25 Firmware and Configuration File Maintenance ...
Страница 223: ...P 660R T Series User s Guide 223 Chapter 26 System Maintenance ...
Страница 227: ...P 660R T Series User s Guide 227 Chapter 27 Remote Management ...
Страница 237: ...P 660R T Series User s Guide 237 Chapter 28 IP Policy Routing ...
Страница 241: ...P 660R T Series User s Guide 241 Chapter 29 Call Scheduling ...
Страница 253: ...P 660R T Series User s Guide 253 Chapter 30 Troubleshooting Figure 173 Java Sun ...
Страница 257: ...P 660R T Series User s Guide 257 Appendix A ...
Страница 281: ...P 660R T Series User s Guide 281 Appendix C IP Subnetting ...
Страница 284: ...P 660R T Series User s Guide Appendix D Splitters and Microfilters 284 ...
Страница 285: ...P 660R T Series User s Guide 285 Appendix D Splitters and Microfilters ...
Страница 287: ...P 660R T Series User s Guide 287 Appendix E Command Interpreter ...
Страница 295: ...P 660R T Series User s Guide 295 Virtual Circuit Topology ...