problem with packet id

[Fabiana moreno]

Hello there, i need some help with a problem i have come across. I am
streaming an mpeg4 video with darwin streaming server and i am capturing the
streaming with tcpdump but when i read the captures; all the rtp packet id
are 0. I dont know why is this happening. or if this a problem with the
kernel. is there a way i can get the ip stack to add an ip id ? Any
suggestions will do. Thank you

1207912741.803450 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP
(17), length 85) 192.168.123.100.6970 > 192.168.123.103.6970: UDP, length 57
1207912741.803515 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP
(17), length 1500) 192.168.123.100.6970 > 192.168.123.103.6970: UDP, length
1472
1207912741.803591 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP
(17), length 1500) 192.168.123.100.6970 > 192.168.123.103.6970: UDP, length
1472
1207912741.803666 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP
(17), length 1500) 192.168.123.100.6970 > 192.168.123.103.6970: UDP, length
1472
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