How do I block requests from an ip address on a Cisco Pix 515?

Posted on 2004-09-11
Medium Priority
Last Modified: 2013-11-16
I have a Cisco Pix 515e and I was wondering if anyone knew how to block traffic from a certain IP adress.  The problem is that there's a machine out there sending my company thousands of e-mails a day just tryng to spam us.  It's all coming from one IP address does anyone know a way to block this?   Thanks
Question by:doubledown830
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Accepted Solution

lrmoore earned 200 total points
ID: 12035798
Easy. Assuming that you already have an inbound traffic access-list that is permitting smtp from "any", just add a block at the top of the acl:

access-list inbound_acl deny ip host <spammer ip> any
<rest of inbound_acl>

Always re-apply the acl when changing it:
  access-group inbound_acl in interface outside
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Expert Comment

ID: 12076454
Are you still working on this? Any updates to your status?

LVL 79

Expert Comment

ID: 13703145
How's it going? Have you found a solution? Do you need more information?
Can you close this question?


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