tcpdump is a tool for network monitoring, protocol debugging and data acquisition.
- low footprint: fits both regular and embedded systems
- good portability: runs on most Unix flavors
- easy to build: depends only on libpcap and conforms to C89
- easy to use: is well documented and widely available
- current: includes modern updates to network protocols
Tested a number of alternatives.
thanks for this great software. it saves me so much time.