Network Utility for iOS
https://itunes.apple.com/us/app/utility-network-for-ios/id573021799
Universal App! Compatible with iPhone and iPad. Utility Network supports iOS 8's Widget, add to your notification center every available network info.
With Utility Network you can quickly find all informations about your network. Information such as internal and external IP, network name, MAC address, gateway address, subnet mask and DNS addresses.
In addition, with a single tap you can PING a domain, query a Whois server or use NSLookup function to discover every info about it.
You can copy any information of the network that you are connected, simply tap on it!
You can also copy result of Whois or NSLookup and paste it everywhere on your iOS device.
An amazing real time graph help you to visualize PING response times, and Utility Network v4 has also real time stats.
Video: Network Utility running on iPad
https://itunes.apple.com/us/app/utility-network-for-ios/id573021799