[ns] sending packet with unicast node address in wireless mac

[reza mohammadi]

hello
i design new mac protocol and i implement in wireless topology
but in first packet sennding (RTS) destination address is -1 and -1 is br
oadcast mac address. how i can send packet with unicat node address my output is shown below
my simulation time is 5 minutes but in first packet sending below result occure
when i implemetn my protocol only one packet exchange occurany body can help me?
best regards
hdr_src,,,,,,,,,,,,,src=0
hdr_type
hdr_dst ,,,,,,,,,, dts=-1
hdr_src,,,,,,,,,,,,,src=0
hdr_type
hdr_dst ,,,,,,,,,, dts=-1
ns: finish: X connection to :0.0 broken (explicit kill or server shutdown).