IPV4 UDP checksum

UDP报头中的checksum字段在IPv4中是可选的，而在IPv6中是强制的。在IPv4中，如果checksum字段被省略，则接收方会忽略该字段。然而，在IPv6中，checksum字段是必需的。校验和的目的是验证UDP数据包在传输过程中是否发生了错误。校验和的计算方法可以使用Scapy库来自动计算，也可以手动计算。在UDP报头中，checksum字段用于存储计算得到的校验和值。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* [如何计算UDP报头的checksum](https://download.csdn.net/download/whowin/87637166)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
- *2* [解析IPV4报文和IPV6报文的checksum的算法](https://blog.csdn.net/legnyu880412/article/details/72833431)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
- *3* [[Scapy]Scapy IPv4/IPv6 UDP Checksum 校验和计算方法](https://blog.csdn.net/friend_c/article/details/123363608)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_1"}}] [.reference_item style="max-width: 33.333333333333336%"]
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