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Posted by Igor Mamuzic on September 3, 2005, 6:10 pm
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are used?)...
You can discover this (if you don't have netflow analyzer) by creating an
ACL as follows (ACL number is only an example, please check 'show
access-list 100' output to find out if there is already ACL 100 configured
on your router):
access-list 100 permit udp any any log
access-list 100 permit ip any any
Place this ACL on the interface where this susspicious traffic enters your
router...
Then execute 'show log' and you'll see what kind of udp traffic it's about.
Then you can create adequate ACL that will block that traffic...
B.R.
I
> Hello My router is getting a flood of udps, the error could be a denial
> of service attack. what do i do the block it? I see a lot of large size
> udp packets. Could it be a wrong subnet mask.
> Thanks
>
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