Re: source filtering

On Tue, Jan 12, 1999 at 06:25:47PM +0000, Alex Bligh wrote: ==>Is UDP smurf much in evidence? (send a UDP packet to the broadcast address ==>on the echo server port and you'll either get ICMP port unreachables ==>back or UDP echos). The reason I ask is that edge ICMP rate ==>limiting won't help UDP. People are still preferring ICMP smurfs as the reflection is usually greater. With that said, you can use a line like the following to filter UDP echo smurfs at the network border; it won't affect other UDP traffic. access-list 101 permit udp any eq 7 any /cah