During login, a host may perform a reverse lookup on the IP address of the source address on the packets it receives.
在登录期间，主机可能会对它收到的数据包的源地址的IP地址执行反向查找。
Knowing this, imagine that an attacker constructs an ICMP echo message containing the spoofed source address of some arbitrary Host a, such as 192.168.2.2, in its header.
知道了这一点，假设攻击者构造了一条IC MP回应消息，它的头中包含伪造的任意主机a的源地址，如192.168.2.2。
IP Address or Host Name of the source and DB2 servers.
源数据库和DB 2服务器的IP地址或主机名。
If the receiving hosts IP address matches the requested IP address, an ARP reply is formulated with the requested hardware address and sent directly to the source host.
如果接收方主机ip地址与要求的IP地址匹配，就生成一个包括发送方所要求的硬件地址的ARP回应帧，并直接发送给源主机。
To make future communications more efficient, the IP address and hardware address mapping of the source host is also included in the request frame.
为了使下一步的通讯更有效，发送端主机的IP地址和硬件地址的映象也包含在请求帧中。
When an application wants to send data to another host, UDP builds a header that includes a source port, a destination port which provides an address for delivering messages.
当应用软件向另一主机发送数据时，UDP协议生成一个数据头，包括源端口，目的地端口。这些端口提供为送达信息所需要的地址。
Each communication carries the address of the source and destination networks and the particular machine within the network associated with the user or host computer at each end.
每个通信携带源地址和目的地址的网络和与用户相关的特定的机器在网络或主机两端。
Each communication carries the address of the source and destination networks and the particular machine within the network associated with the user or host computer at each end.
每个通信携带源地址和目的地址的网络和与用户相关的特定的机器在网络或主机两端。
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