Security 14-35
This incoming IP packet (10000000) has a source IP address that does not match the network address in the
Source IP Address field (00000000) in the Netopia R7200. This rule
will
for ward this packet because the
packet does not match.
Example 3
Incoming packet has the source address of 200.1.1.184.
Since the Source IP Network Address in the Netopia R7200 is 01100000, and the source IP address after the
logical AND is 1011000, this rule does
not
match and this packet will be for warded.
Example 4
Incoming packet has the source address of 200.1.1.104.
Filter Rule:
200.1.1.96
(Source IP Network Address)
255.255.255.240
(Source IP Mask)
For ward = No
(What happens on match)
IP Address
Binar y Representation
200.1.1.184
10111000
(Source address in incoming IP packet)
AND
255.255.255.240
11110000
(Per form the logical AND)
10110000
(Logical AND result)
Filter Rule:
200.1.1.96
(Source IP Network Address)
255.255.255.240
(Source IP Mask)
For ward = No
(What happens on match)
IP Address
Binar y Representation
200.1.1.104
01101000
(Source address in incoming IP packet)
AND
255.255.255.240
11110000
(Per form the logical AND)
01100000
(Logical AND result)
Summary of Contents for R7200
Page 1: ...Netopia R7200 SDSL Router Nokia Speedlink certified User s Reference Guide ...
Page 12: ...User s Reference Guide ...
Page 18: ...2 4 User s Reference Guide ...
Page 42: ...5 14 User s Reference Guide ...
Page 56: ...User s Reference Guide ...
Page 72: ...8 16 User s Reference Guide ...
Page 82: ...9 10 User s Reference Guide ...
Page 112: ...10 30 User s Reference Guide ...
Page 118: ...11 6 User s Reference Guide ...
Page 150: ...13 20 User s Reference Guide ...
Page 200: ...User s Reference Guide ...
Page 206: ...A 6 User s Reference Guide ...
Page 220: ...B 14 User s Reference Guide ...
Page 234: ...E 4 User s Reference Guide ...
Page 250: ...8 User s Reference Guide ...
Page 256: ...Index 6 ...
Page 258: ...2 User s Reference Guide ...