Using address wildcards, Using the ip simulate function, Ip simulate overview – Avaya Media Gateway G250 User Manual
Page 272: Using address
Policy Based Routing
272 Avaya Integrated Management Release 4.0.1 Software Update Manager
Using Address Wildcards
Wildcards are used to mask all or part of a source or destination IP address. Using wildcards,
you can create filters for IP addresses. A wildcard can also be used to mask specific bits of an
IP address. This mask is used to specify which bits are used and which bits are ignored.
If you specify Host, the wildcard is set to 0.0.0.0 and the entire address is used. If you specify
Any, the wildcard is set to 255.255.255.255 and the IP address is ignored. You can also specify
a custom wildcard to mask part of the IP address.
Examples:
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If the source IP address is 149.36.184.189 and the wildcard is 255.0.255.255, the rule will
apply to all packets, where the second byte of the IP address is 36. The 255 in the first,
third, and fourth bytes allow any value in the corresponding bytes of the source address to
match this rule.
●
If the destination address is 149.36.184.189 and the destination wildcard is 255.255.127.0,
the rule will only apply to traffic directed to IP addresses whose third byte is between
128-255 and whose fourth byte is 189.
Using the IP Simulate Function
This section provides instructions on activating and using the IP Simulate function to simulate
the effect of rules on information packets. It discusses the following topics:
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- An overview of the IP Simulate function.
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- Instructions for using the IP Simulate function to simulate the actions
of a policy on defined packets.
IP Simulate Overview
The IP Simulate function allows you to view the results of a policy on a simulated packet.
The IP Simulate function tests a simulated packet against the rules in a policy. The rules are
applied to the simulated packets in the order they appear in the Rules List, and the resulting
operation is reported in the Result field of the IP Simulate dialog box.
The rule that matched the packet is highlighted in the Rules List. This enables you to view the
outcome of a policy before activating it. It also eases the editing of rules in a policy to provide
the desired results.