NetTools - Network Utilities 4+‎

Common tools for network diagnostics right in your pocket. This app allows to explore lan and external networks, check internet connection or servers availability with using your phone. The following tools are currently available:
1) Network information - displays external ip and detailed info about internet connection..
2) LAN explorer - will find all devices in local network.
3) IP range scanner - search hosts by ip range, allows to dynamically check ports and filter hosts by opened ports.
4) Ping - easy way to check internet connection.
5) Traceroute - displays route to the host.
6) Port scanner - check ports in selected range, supports TCP and UDP protocols.
7) DNS records - find DNS records for selected domain.
8) Whois - displays information about domains owner.
9) Server check - checks availability of selected servers (supported methods: ping, tcp, http, https)
10) Wake On Lan - wake up machine by network.
11) TCP client - may be used for testing of servers those use text protocols (HTTP, whois, ...)
12) IP calculator

App interface allows to use several tools in one moment, call tools from each other and also share result of their working or copy it to the clipboard.

Every tool has multiple settings - IP scanner supports several modes. Ping and Traceroute can work with ICMP and UDP protocols. Also app allows to enter manually DNS servers those will be used by tools in the settings.