ICMP and IGMP belong to which layer of the OSI model? ICMP和IGMP协议在OSI模型中属于那层?() A. Datagram Layer.数据报文层 B. Network Layer.网络层 C. DataLink Layer.数据链路层 D. Transport Layer.传输层 相关知识点: 试题来源: 解析 B.Network Layer.网络层 ...
ngrep is like GNU grep applied to the network layer. It's a PCAP-based tool that allows you to specify an extended regular or hexadecimal expression to match against data payloads of packets. It understands many kinds of protocols, including IPv4/6, TCP, UDP, ICMPv4/6, IGMP and Raw, ...