How can I apply the ACL for worm?

[dullyo]

Hello..

I have a quetion of ACL..

I have many router and want to apply ACL for worm..

It worked in Cisco7500 and Cisco4500, but When I apllied it in Cisco2500(2501, 2511, 2522) it didn't work...

So how can I apply it in Cisco2500??

========== To 7500, 4500 ============

access-list 187 permit icmp any any echo

access-list 187 permit icmp any any echo-reply

route-map worm permit 10

match ip address 187

match length 92 92

set interface Null0

interface Ethernet0

ip policy route-map worm

[gmarogi]

The packet length used for matching depends on the IOS version used as mentioned in this document. Check if it helps you :

http://www.cisco.com/en/US/products/sw/voicesw/ps556/products_tech_note09186a00801b143a.shtml