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パケットキャプチャが大きくなりすぎる時の対処法

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キャプチャをフィルタリングして取得する

tshark -w capture.pcap -f 'port 80'

キャプチャを開かずにフィルタリングして取り出す(aaa.capが肥大化したキャプチャ、test.pcapが吐き出し先 windowsで実行した場合)

"C:/Program Files/Wireshark/tshark" 
-r aaa.cap -R http -w test.pcap

Tsharkオプション一覧

tshark option mean
-w [File] 出力ファイルを指定
-d tcp.port=111,http portとプロトコルを紐付(tcp 111portをhttpにする)
-r [inFile] 読み込ませるファイルを指定(-Rオプションでフィルタリング可能)
-f [capture filter] -f 'port 111' port 111のパケットをキャプチャする
okiami123
日々困ったことを綴ります 自分で忘れないために
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