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Anyway to drop udp packets equaling 35 bytes?

Just like the title says. I like to find way to drop udp packets equaling a certain size. Since the packet could be fragmented I fairly certain it would have to handled by a host instead.

1 REPLY
Cisco Employee

Re: Anyway to drop udp packets equaling 35 bytes?

Hi,

If you are talking about routers then yes there is a way, but on PIX firewall I dont think so.

Here is a sample, you can get the relevant inforamtion from http://www.cisco.com/warp/public/707/cisco-sn-20030820-nachi.shtml

Some thing like this

access-list 199 permit udp any any

route-map blockudp35 permit 10

match ip address 199

match length 32 32

set interface Null0

interface

ip policy route-map blockudp35

Thanks

Nadeem

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