一、官网下载tcpdump和libpcap压缩包

官网：https://www.tcpdump.org/index.html#latest-releases

二、安装相关依赖库

1）yum -y install gcc-c++;

2）yum -y install flex;

3）yum -y install bison;

出现了Failed to download metadata for repo 'ks10-adv-os'，这是下载源有问题

解决办法：

cd /etc/yum.repos.d

vi kylin_aarch64.repo

删除原代码，将下列代码复制过去

[ks10-adv-os]
name = Kylin Linux Advanced Server 10 - Os
baseurl = http://archive2.kylinos.cn/rpm/kylin/production/KY-KY10-GFB-aarch64/custom/kylin-server/KY10-GFB-aarch64/
#baseurl = http://update.cs2c.com.cn:8080/NS/V10/V10SP1/os/adv/lic/base/$basearch/
gpgcheck = 0
enabled = 1

[ks10-adv-updates]
name = Kylin Linux Advanced Server 10 - Updates
baseurl = http://update.cs2c.com.cn:8080/NS/V10/V10SP1/os/adv/lic/updates/$basearch/
gpgcheck = 0
enabled = 0

[ks10-adv-addons]
name = Kylin Linux Advanced Server 10 - Addons
baseurl = http://update.cs2c.com.cn:8080/NS/V10/V10SP1/os/adv/lic/addons/$basearch/
gpgcheck = 0
enabled = 0

reposync -v --installroot /opt/aarch64/

完成后可以看到，yum install 程序名，可正常下载，不会报错了

三、安装libpcap库(libpcap与tcpdump有依赖，需先安装)

tar -zxvf libpcap-1.10.1.tar.gz；

cd libpcap-1.10.1;

./configure;

make;

make install;

四、安装tcpdump

tar -zxvf tcpdump-4.99.1.tar.gz;

cd tcpdump-4.99.1;

./configure;

make;

make install;

本文参考链接：

https://blog.csdn.net/dluhehe/article/details/121306765

https://blog.csdn.net/m0_53967669/article/details/127283289?spm=1001.2014.3001.5506