with interface bind --> eth3 (192.168.64.66)
v=0^M
o=- 0 0 IN IP4 192.168.64.66^M
t=0 0^M
s=Yuvad^M
a=mpeg4-iod:"data:application/mpeg4-iod;base64,Ah4AT////v7/AxUAZR8EDSEREAAAf////wAAAAAGAQI="^M
m=video 6666 RTP/AVP 96^M
c=IN IP4 224.12.34.56/5^M
b=AS:300^M
b=RS:1500^M
b=RR:0^M
a=rtpmap:96 H264/90000^M
a=mpeg4-esid:101^M
a=fmtp:96 packetization-mode=1; sprop-parameter-sets=Z01ADPQPBTQgAAADACAAAAZB4oVU,aM84gA==^M
a=cliprect:0,0,320,480^M
a=framerate:25.0^M
m=audio 6668 RTP/AVP 14^M
c=IN IP4 224.12.34.56/5^M
b=AS:96^M
b=RS:480^M
b=RR:0^M
udp 0 0 192.168.64.66:42264 224.12.34.56:6668 ESTABLISHED
udp 0 0 192.168.64.66:47412 224.12.34.56:6667 ESTABLISHED
udp 0 0 192.168.64.66:55895 224.12.34.56:6666 ESTABLISHED
udp 0 0 192.168.64.66:57696 224.12.34.56:6669 ESTABLISHED
wireshark
1. capture interface eth3(192.168.64.66)'s mac address
capture filter: ether host 00:1B:21:91:E3:4E
2. expression filter
ip.dst == 224.12.34.56
3. output result
src dest port
192.168.64.66 224.12.34.56 6666
...........................................................................................................