Dynamix UM-S Uživatelský manuál stáhnout pdf (Strana 54)

G.shdsl Router User Manual 152

Rule Order

The rules order affects the filtering result. The filtering process will proceed from top to bottom,

changing the order as the different result of filtering.

Rule Source Address Destination Address Action

A 10.0.0.0 172.16.6.0 Permit

B 10.1.99.0 172.16.0.0 Deny

C Any Any Deny

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.

Index Source Address Destination Address Action

1 10.1.99.1 172.16.1.1 Deny (B)

2 10.1.99.1 172.16.6.1 Permit (A)

3 10.1.1.1 172.16.6.1 Permit (A)

4 10.1.1.1 172.16.1.1 Deny (C)

5 192.168.3.4 172.16.6.1 Deny (C)

The rule order will permit 10.1.99.1 to access 172.16.6.1.

When the rule is ordered as BAC.

Index Source Address Destination Address Action

1 10.1.99.1 172.16.1.1 Deny (B)

2 10.1.99.1 172.16.6.1 Deny (B)

3 10.1.1.1 172.16.6.1 Permit (A)

4 10.1.1.1 172.16.1.1 Deny (C)

5 192.168.3.4 172.16.6.1 Deny (C)

The rule order will deny 10.1.99.1 to access 172.6.6.1.

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 101 102

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Dynamix UM-S Uživatelský manuál Strana 54