i have to confirm following logic. i know the for smurf attack i have to consider icmp echo and icmp echo reply and then either drop it or policy it as per requirement.
but , i have read that "no ip directed-broadcast" can also be used for smurf protection ? today i was using a router with flash:c2600-advsecurityk9-mz.124-15.T14.bin" and when i did #show run all, under fa0/0 there is not default value of "no ip directed broadcast", so just want to confirm from EXPERTS, would that be ok and acceptable by CCIE LAB, in case if they ask smurf attack question and i configure both "no ip directed broadcast " under the interface and also deny icmp-echo and echo-reply or police it if mentioned !!! regards,
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