Create and Edit ASA Service Objects
In a service object, you can specify a single protocol and assign it to a source port, destination port, or both source and destination ports.
Procedure
Step 1 | In the left pane, click Objects > ASA Objects. |
Step 2 | Click . |
Step 3 | Enter an object name. |
Step 4 | Select Create a service object |
Step 5 | Click the Service Type button and select the protocol for which you want to make an object.
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Step 6 | Click Add. |
Examples
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A service object that identifies incoming FTP traffic would be one with a TCP Service type and a destination port range of 21.
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A service object that identifies outgoing DNS and DNS over TCP traffic would be one with a tcp-udb service type and a source port equal to 53.