Is there a command or application similar to ipconfig? I would like to see my network addresses on my phone. On Windows I can use ipconfig for this and ifconfig on Linux. But how can I see this information on my Android device? Is there an application or command for this?

More specifically I would like to see what IPv4 address I get and what IPv6 address I get or if I don't get one.
Android comes with ifconfig, install Terminal Emulator and type "ifconfig eth0", or use "netcfg" to list all available devices. You need root to use ifconfig though.