Hello Troy,
Yes. It is possible to simulate broadcast traffic. I attached a simple topology that I setup in CML. Here are the results of my pings:
Router1#ping 10.1.1.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/4 ms
Router1#ping 10.1.1.3
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.3, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/5 ms
Router1#ping 10.1.1.255 repeat 1
Type escape sequence to abort.
Sending 1, 100-byte ICMP Echos to 10.1.1.255, timeout is 2 seconds:
Reply to request 0 from 10.1.1.3, 2 ms
Reply to request 0 from 10.1.1.2, 2 ms
Router1#
As you can see when I ping the broadcast address (10.1.1.255) both other routers reply.
Hope that helps!
-Bradley Selzer
CCIE# 60833