Category Archives: Tools

Setting up OpenGear ACM5004 for remote access via mobile/Celluar networks

In this guide we will setup an OpenGear ACM5004 for remote mgmt and remote SSH capabilities (serial ports) over the mobile network, utilizing DynDNS to enable easy connection to the device. A fair warning first, I would not use the OpenGear over cellular networks as a permanent solution to access any equipment. The reason being […]

How to show mac addresses in TCPdump

Just a quick tip on how to display MAC addresses in the TCPdump utility. Simply use the “-e” switch. tcpdump -i INTERFACENAME -e Without the -e switch: [CheckPoint]# tcpdump -i bond2.100 -n 12:28:42.257902 IP > . ack 1831 win 513 12:28:42.258620 IP > P 1:286(285) ack 1831 win 513 With the […]