uhmmm I guess to have understood your question (something like sending the same packets to SERVER:1234 SERVER:1235 SERVER:1236 and so on) but this is not possible in the Source engine and practically in almost all the other games due to the handshakes/challenges and other details of the protocol (ids, qports and so on).
anyway sudppipe implements 2 options for doing a similar job:
-X the packets will be sent to all the specified hosts using a new local port
-Y the packets will be sent to all the specified hosts using the same local port
example:
Code:
sudppipe -X 1.2.3.4:1234,1.2.3.4:1235,1.2.3.4:1236,192.168.0.14:12345 0 1234
I have used 0 as destination port because all the hosts I have specified have their port (:port)