Finding dynamic IP addresses
|
Mobile
Smartphone users can turn to a commercial tool known by the name of either Look@Lan or Fing [15] for help. This tool comes as a DEB package for Android and Debian and combines Ping and Nmap. The software has versions for the command-line and a graphical interface (Figure 2).
Figure 2: An overview of the network according to Fing.
Conclusion
As long as everything runs smoothly on a DHCP network, you do not need to waste time looking at address assignments for hosts. However, if the system experiences problems, you will find that the collection of tools presented here offers reliable help for analyzing the entire LAN infrastructure.
Acknowledgments
The author thanks Axel Beckert, Sebastian Andres, Wolfram Eifler, Dirk Deimeke, and Werner Heuser for the encouragement and helpful criticism they provided during the preparation of this article.
Infos
- DHCP: https://en.wikipedia.org/wiki/Dynamic_Host_Configuration_Protocol
- ISC DHCP server (DEB): https://packages.debian.org/jessie/isc-dhcp-server
- Dnsmasq: http://thekelleys.org.uk/dnsmasq/doc.html
- Format of lease files: http://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2006q2/000734.html
- ARP: https://en.wikipedia.org/wiki/Address_Resolution_Protocol
- procfs: https://www.kernel.org/doc/Documentation/filesystems/proc.txt
- IP neighbor: http://linux-ip.net/html/tools-ip-neighbor.html
- Fping: http://fping.org
- Nmap: http://nmap.org
- dhcping (DEB): https://packages.debian.org/jessie/dhcping
- DHCPStatus: http://dhcpstatus.sourceforge.net
- reportdhcp: http://www.omar.org/opensource/reportdhcp/
- dhcpd-pools: http://dhcpd-pools.sourceforge.net
- An overview of DHCP leases: http://www.tcpipguide.com/free/t_DHCPLeaseLifeCycleOverviewAllocationReallocationRe.htm
- Fing mobile: http://www.lookatlan.com
« Previous 1 2 3 4 Next »
Buy this article as PDF
Pages: 5
(incl. VAT)
Buy Ubuntu User
US / Canada
UK / Australia
Related content
-
NetworkManager and system updates
With NetworkManager, you can access the Internet during the Ubuntu installation process. The first step is to download updates to make your system more secure.
-
NetworkManager and system updates
With NetworkManager, you can access the Internet during the Ubuntu installation process. The first step is to download updates to make your system more secure.
-
NetworkManager and system updates
With NetworkManager, you can access the Internet during the Ubuntu installation process. The first step is to download updates to make your system more secure.
-
NetworkManager and system updates
With NetworkManager, you can access the Internet during the Ubuntu installation process. The first step is to download updates to make your system more secure.
-
NetworkManager and system updates
With NetworkManager, you can access the Internet during the Ubuntu installation process. The first step is to download updates to make your system more secure.