[root@VM-0-13-centos ~]# ip link set dev eth0 multicast off
[root@VM-0-13-centos ~]#
[root@VM-0-13-centos ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
link/ether 52:54:00:b1:26:bf brd ff:ff:ff:ff:ff:ff
inet 172.16.0.13/24 brd 172.16.0.255 scope global noprefixroute eth0
valid_lft forever preferred_lft forever
inet6 fe80::5054:ff:feb1:26bf/64 scope link
valid_lft forever preferred_lft forever
[root@VM-0-13-centos ~]#
[root@VM-0-13-centos ~]#
[root@VM-0-13-centos ~]# ip -d link show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 promiscuity 0 minmtu 0 maxmtu 0 addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535
2: eth0: <BROADCAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP mode DEFAULT group default qlen 1000
link/ether 52:54:00:b1:26:bf brd ff:ff:ff:ff:ff:ff promiscuity 0 minmtu 68 maxmtu 65535 addrgenmode eui64 numtxqueues 1 numrxqueues 1 gso_max_size 65536 gso_max_segs 65535 ```
混杂已关闭,多播已关闭
网卡接收多播 mac(33:33:00:01:02),但是centos仍然处理这个数据包,不掉落。是什么原因?