ATL Telecom AM2 User Manual
Page 54
ATL User Guide
AM2 G.SHDSL Modem
54
Rule Order
The rules order affects the filtering result. The filtering process proceeds from top to bottom, changing the
order based on the results of filtering.
Where "0" at the last eight bits indicates "from 1 to 254", "0" at any eight bits preceding "0", "0.0" or
"0.0.0" indicates "from 1 to 254". On the other hand, "0" and all "0" successive with "0" represents any.
When the rule is ordered as ABC.
The rule order will permit 10.1.99.1 to access 172.16.6.1.
When the rule is ordered as BAC.
The rule order will deny 10.1.99.1 to access 172.6.6.1.
Rule
Source Address
Action
Deny (B)
10.1.99.1
1
Deny (B)
10.1.99.1
2
Permit (A)
10.1.1.1
3
Destination Address
172.16.1.1
172.16.6.1
172.16.6.1
Deny (C)
10.1.99.1
4
Deny (C)
192.168.3.4
5
172.16.1.1
172.16.6.1
Rule
Source Address
Action
Deny (B)
10.1.99.1
1
Permit (A)
10.1.99.1
2
Permit (A)
10.1.1.1
3
Destination Address
172.16.1.1
172.16.6.1
172.16.6.1
Deny (C)
10.1.99.1
4
Deny (C)
192.168.3.4
5
172.16.1.1
172.16.6.1
Rule
Source Address
Action
Permit
10.0.0.0
A
Deny
10.1.99.0
B
Deny
Any
C
Destination Address
172.16.6.0
172.16.0.0
Any