The ieee 802.11 headers can vary in length depending on the packets types, qos, etc.
The ieee standard is available for free, that should be your best reference. -- Sent from mobile, brevity, accuracy and security disclaimers. abhinav narain <abhinavnarai...@gmail.com> wrote: hi, I have seen tcpdump,wireshark both just print packet contents till mac header in monitor mode. In case of normal wireless interfaces (wlan0), they follow a different execution path. Can someone tell me what should I expect in the the frame after ieee80211_hdr (which comes after the radiotap header) ? According to my knowledge, I assume if the control frame bit with Is it an llc header with a general format : struct llc_hdr { uint8 dsap; uint8 ssap; struct { uint8 ui; uint8 org_code[3]; uint16 ether_type; } snap; }; so that i can jump it and get the ip header ? If some one can correct me ? would be great Abhinav - This is the tcpdump-workers list. Visit https://cod.sandelman.ca/ to unsubscribe.
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