nast网络分析扫描工具

Network Analyzer Sniffer Tool (nast) 是一个网络包嗅探和局域网分析工具，基于 libnet 和 libpcap 开发。

nast can sniff in normal mode or in promiscuous mode the packets on a network interface and log it. It dumps the headers of packets and the payload in ascii or ascii-hex format. You can apply a filter. The sniffed data can be saved in a separated file.

主要特点：

• Build LAN hosts list


• Follow a TCP-DATA stream


• Find LAN internet gateways


• Discover promiscuous nodes


• Reset an established connection


• Perform a single half-open portscanner


• Perform a multi half-open portscanner


• Find link type (hub or switch)


• Catch daemon banner of LAN nodes


• Control arp answers to discover possible arp-spoofings


• Byte counting with an optional filter


• Write reports logging