[tcpdump-workers] Convert timeval to timestamp

2006-03-20 Thread Luis Del Pino
What function do I have to use to convert a struct timeval (struct pcap_pkthdr {struct timeval ts;...}) to timestamp units(u_int32)? i like calculating jitter in RTP streams. Very thanks - This is the tcpdump-workers list. Visit https://lists.sandelman.ca/ to unsubscribe.

[tcpdump-workers] Checksum

2006-03-15 Thread Luis Del Pino
When I capture an UDP datagram from a well-known source, Could the checksum be incorrect? do I have to calculate it? or How Could I ask other entity about it? Thanks - This is the tcpdump-workers list. Visit https://lists.sandelman.ca/ to unsubscribe.

[tcpdump-workers] UDP Fragments

2006-03-11 Thread Luis Del Pino
Hi, I'm Luis del Pino, What filter could I use to capture UDP datagrams and its fragments? I have this filter "dst 192.168.0.120 and (udp dst port 10005 or udp dst port 10006 or udp dst port 10007)" but it doesn't capture the fragments. I only want capture its fragments an

[tcpdump-workers] fragmented packets

2006-02-24 Thread Luis Del Pino
Hello, i have a question. I am filtering UDP segments by port. In fragmented packets, i only capture the UDP segment and i can't capture the other fragments. My questions are: could the fragments loss? or if a fragment is lost in the network, the UDP segment entirely is it lost?. i'm sorry for my E

[tcpdump-workers] Capture icmp type = 3

2006-01-11 Thread Luis Del Pino
Hello i have a problem. I can't capture the packets ICMP type 3 "Destination Host Unreachable". I can capture packets ICMP type 0 "echo reply" but i do "ping IP(unknow)" I can't the answer . Here it is the code of program. I believe that libpcap doesn't capture this packets well because i capture E

[tcpdump-workers] radio header 802.11

2005-11-02 Thread Luis Del Pino
Can i capture radio header 802.11 with promicuouos mode or only monitor mode? I would like to get signal strength, noise strength, etc. Could i capture this information with libpcap and promiscuous mode? - This is the tcpdump-workers list. Visit https://lists.sandelman.ca/ to unsubscribe.