Thanks very much for your help
I see Example 7-27 is for router. But I can't find any command related to "directed broadcast" in PIX/ASA firewall.
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Verify PIX/ASA block directed broadcast traffic
I need to check If firewall(PIX/ASA) block inbound and outbound directed broadcast traffic.
I want to do some testing to verify this issue. but how to do it?
If any expert would be willing to help, it would be greatly appreciated!
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by: MikeHolcombPosted on 2009-11-07 at 05:58:30ID: 25766342
Typically, when you discuss blocking "directed broadcast" traffic, you're looking at addressing the network conditions that allow your network to be used in an amplification attack such as a Smurf or Fraggle attack. Your ISP's routers should already be configured to block this type of traffic.
If you want to also ensure your Cisco PIX/ASA blocked directed broadcast traffic, you'll want to implement an ACL on your firewall as soon in Example 7-27 on the following link to prevent broadcasts moving in and out of the firewall interfaces.
http://books.google.com/bo
Hope this helps...
Mike