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CSS 11501 DOS attack white list

Posted on 2008-10-13
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Last Modified: 2013-12-09
Hello..... is it possible to white list a network or host address? I have a situation where a NAT'ed ip is being blocked possibly because of the number of connections coming through. Any input will be appreciated. Thanks.
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Question by:cavacamite
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4 Comments
 
LVL 32

Expert Comment

by:harbor235
ID: 22707897


CSS perfroms NAT, it is also a content service device, load balancer, etc .... The CSS doe snot handle spam or deal with DOS attacks.

harbor235 ;}
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Author Comment

by:cavacamite
ID: 22708014
Thanks. See the DOS output below. The source address is the one experiencing problems accessing the destination ip. The CSS isn't configured to block anything. Could there be any default values on the CSS causing the problem?
DOS Attack Event  1:
First Attack: 10/13/2008 15:47:56
Last Attack:  10/13/2008 16:09:01
Source Address: A.B.C.D  Destination Address: A.B.R.T
Event Type: SYN Attack Total Attacks: 402

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Accepted Solution

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harbor235 earned 500 total points
ID: 22711272


The DOS feature on the CSS is informational only, it provides statistics on potential attacks and allows you to send SNMP traps to alrt you, it doe snot perfrom DOS mitigation. You can accumulate statistics and you can also reset those statistics for monitoring purposes. I did not this feature existed until yooumade me look at it, thanx

http://www.cisco.com/en/US/docs/app_ntwk_services/data_center_app_services/css11500series/v8.20/configuration/administration/guide/SNMP.html#wp1051871

harbor235 ;}
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Author Comment

by:cavacamite
ID: 22712426
Thanks very much for your help. That means back to troubleshooting the issue.
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