一台服务器两个网卡enp3s0和enp4s0,分别配置192.168.211.20/24,gw192.168.211.1和192.168.205.207/24,无网关。发现开始用192.168.205.0网段的pc192.168.205.201无法ping通192.168.211.20,判断是反向路由检测问题。添加route add -host 192.168.205.201/32 gw 192.168.211.1后,发现能够ping通211.20,但ping192.168.205.207缺显示无法访问目的主机?请问这是为啥?
enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether c4:00:ad:4f:17:61 brd ff:ff:ff:ff:ff:ff
inet 192.168.211.25/24 brd 192.168.211.255 scope global enp3s0
valid_lft forever preferred_lft forever
inet6 fe80::c600:adff:fe4f:1761/64 scope link
valid_lft forever preferred_lft forever
3: enp4s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether c4:00:ad:4f:17:62 brd ff:ff:ff:ff:ff:ff
inet 192.168.205.207/24 brd 192.168.205.255 scope global enp4s0
valid_lft forever preferred_lft forever
inet6 2000::c600:adff:fe4f:1762/64 scope global dynamic mngtmpaddr noprefixroute
valid_lft 2592000sec preferred_lft 604800sec
未添加主机路由前路由表如下:
worker@worker:~$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.211.1 0.0.0.0 UG 0 0 0 enp3s0
172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
172.18.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker_gwbridge
192.168.205.0 0.0.0.0 255.255.255.0 U 0 0 0 enp4s0
192.168.211.0 0.0.0.0 255.255.255.0 U 0 0 0 enp3s0