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But this is not over yet. Ethernet also requires CRC verification when transmitting data. The network card will CRC check the data packet before sending the data, attaching a 4-byte CRC value to the back of the packet header. At this time, the packet length is no longer 40 bytes, but 64 bytes, which is often referred to as SYN packet attack. The packet structure is as follows:徐风笑嘻嘻地说：我帮你弄弄吧。Chu can also see clearly that the reason is that there are too many of them. Let's describe them this way-it looks like a dark cloud rising out of thin air in the rainforest. "Zhang Xiaobo said.Step 3: Specify Operations and Product Policies该剧讲述上世纪三十年代初，日本占领中国东北三省，在一列从哈尔滨开往奉天的列车上，一方面日本人进行细菌战筹备中，秘密对相关生化专家及重要物资进行转移；另一方面南满伪政府中央银行将通过铁路秘密运送大批黄金，国民党特工乌鸦计划炸车夺金；除此之外，共产党秘密据点在此间也被乌鸦袭击，抗联特工队队长林胜男计划抓捕乌鸦。各方焦点汇集，在全长六百余公里的南满铁路沿线上演中国版火车大劫案。……翘儿苦思道，类似的话……相公倒也说过。