If the gateway processing a datagram determines that the time to live field in the datagram's IP header is 0, it discards the datagram and notifies the sending host with a time Exceeded Message.

如果处理数据报的网关测定该数据报i p头中的生存时间字段为0，则丢弃该数据报并用超时消息通知源主机。

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IPC protocol (resemble TCP) provide credible transmit, realize slip-window, and provide the function of datagram partition and composition. This protocol has to send and accept datagram serially.

IPC协议(类似TCP协议)提供可靠传输，实现滑动窗口功能，并提供数据包的自动分包、组包功能，按序传送和接受数据包。

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The data collector can test and recombine the segment datagram, easily find the attack that utilized the recombined datagram, thus improve the speed of detection.

数据采集器能对分段报文进行重组测试，可以很容易的检测到利用报文重组方式来发动的攻击，从而提高了检测的速度。

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Buzzfeed, which is using Tumblr as a breaking news platform while its site remains static, reports that the three all share a server host, Datagram, whose Whitehall Street offices flooded.

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