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Cisco Pix 520 - Open Ports

Posted on 2013-06-25
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Last Modified: 2013-07-10
How can i see what ports are open on my Pix 520?
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Question by:deklinm
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TMekeel earned 2000 total points
ID: 39276222
You want to sh run check for access-list permit statements, and also then verify they are open by looking for access groups that apply the access-list to an interface.

ACLs dont open the ports necessarily, they need to be applied to an interface.
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by:Cyclops3590
ID: 39277761
please post a sanitized config and we can help out.
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by:NE_Tech_Dude
ID: 39288930
To add on to TMekeel's answer above, If you don't have ACLs applied to the interfaces (show run access-group and see if acl's are assigned), then the rules of traffic will be governed by the security interface number.  No ACL needed to get traffic flowing from a higher numbered security zone to a lower numbered security zone, all that traffic will be implicitly allowed when no access-list is applied via access-group command.
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