Wireshark SSH remote capture
OpenWrt 側の設定
# opkg update && opkg install tcpdump
Downloading https://downloads.openwrt.org/releases/21.02.3/targets/bcm53xx/generic/packages/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_core Downloading https://downloads.openwrt.org/releases/21.02.3/targets/bcm53xx/generic/packages/Packages.sig Signature check passed. Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/base/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_base Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/base/Packages.sig Signature check passed. Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/luci/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_luci Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/luci/Packages.sig Signature check passed. Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/packages/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_packages Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/packages/Packages.sig Signature check passed. Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/routing/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_routing Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/routing/Packages.sig Signature check passed. Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/telephony/Packages.gz Updated list of available packages in /var/opkg-lists/openwrt_telephony Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/telephony/Packages.sig Signature check passed. Installing tcpdump (4.9.3-4) to root... Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/base/tcpdump_4.9.3-4_arm_cortex-a9.ipk Installing libpcap1 (1.9.1-3.1) to root... Downloading https://downloads.openwrt.org/releases/21.02.3/packages/arm_cortex-a9/base/libpcap1_1.9.1-3.1_arm_cortex-a9.ipk Configuring libpcap1. Configuring tcpdump.
PC 側の設定
Server タブ
Remote SSH server address に OpenWrt ルーターの IP アドレスを指定する。
Remote SSH server port に OpenWrt ルーターの SSH ポートを指定する。
Authentication タブ
Remote SSH server username に root を指定する。
Path to SSH private key に rsa key (OpenSSH 形式) のパスを指定する。
SSH key passphrase に rsa key のパスフレーズを指定する。
Capture タブ
Remote interface に br-lan を指定する。
Remote capture filter に not port 22 (SSH ポート 22 を除外) を指定する。
最後に [開始] ボタンを押して、パケットキャプチャを開始する。