DPDK（9）：tcpdump出现本机地址替换为bogon

来源：互联网发布：io 域名注册编辑：程序博客网时间：2024/05/29 09:21

tcpdump抓包时IP地址莫名其妙变为bogon，应该是和DNS或者hostname有一定的关系，但是我的电脑hostname又没有修改，应该和我修改了虚拟机配置有关系。

找到一种办法是在tcpdump中加参数-nn，姑且解决一下问题。

加参数前：

root@ubuntu:/home/cling60# tcpdump -vv  -i  eth3  -c 10tcpdump: listening on eth3, link-type EN10MB (Ethernet), capture size 262144 bytes17:32:12.476102 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1817:32:12.476111 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1817:32:12.476155 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1817:32:12.476158 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1817:32:12.476161 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1817:32:12.476168 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1817:32:12.476170 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1817:32:12.516051 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1817:32:12.516106 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1817:32:12.516109 IP (tos 0x0, ttl 32, id 4, offset 0, flags [none], proto UDP (17), length 46)    bogon.discard > bogon.discard: [no cksum] UDP, length 1810 packets captured1126 packets received by filter837 packets dropped by kernel

加参数后：

root@ubuntu:/home/cling60# tcpdump  -nn -vv  -i  eth3  -c 10tcpdump: listening on eth3, link-type EN10MB (Ethernet), capture size 262144 bytes17:35:16.961262 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1817:35:16.961726 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1817:35:16.962658 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1817:35:16.962710 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1817:35:16.962714 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1817:35:16.962723 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1817:35:16.962730 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1817:35:16.984193 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1817:35:16.984222 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1817:35:16.984225 IP (tos 0x0, ttl 32, id 8, offset 0, flags [none], proto UDP (17), length 46)    192.168.19.129.9 > 192.168.19.128.9: [no cksum] UDP, length 1810 packets captured422 packets received by filter139 packets dropped by kernel

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