Linux Multi-NIC sets the same network segment, causing problems

linux  multiple network cards set up the same network segment, causing the problem server has two network ports, two network port IP are the same network segment network Port 1:172.16.18.102/16, to the corporate LAN network Port 2:172.16.18.13/ 16, directly connected to a NAS server, NAS and the above two IP also for the same network segment NAS server: 172.16.16.20/16 problem performance: According to the above connection, the server accesses any machine to make it impossible to access the NAS Server principle: Routing table decision, [[ email protected] ~]# route -nkernel ip routing tabledestination      Gateway         Genmask          Flags Metric Ref    Use Iface172.16.0.0       0.0.0.0         255.255.0.0      U     100    0         0 enp2s0f0172.16.0.0      0.0.0.0          255.255.0.0     U      101    0 &Nbsp;      0 enp2s0f1[[email protected] ~] #可以看到, All data is  at 00:1f via ENP2S0F0 network Port [[email protected] ~]# arp -an?  (172.16.66.22): c6:9c:a2:11 [ether] on enp2s0f0?  (172.16.66.234)  at f4:4d:30:0b:53:95 [ ether] on enp2s0f0?  (172.16.20.243)  at 08:9e:01:24:7d:bd [ether] on  enp2s0f0[[email protected] ~]#  workaround, manually specify a route to access through the ENP2S0F1 network Port 172.16.16.20 route add  -HOST 172.16.16.20 DEV ENP2S0F1 Test:[[email protected] ~]# ping  172.16.16.20ping 172.16.16.20  (172.16.16.20)  56 (+)  bytes of data.64 bytes  from 172.16.16.20: icmp_seq=1 ttl=64 time=0.062 ms64 bytes from  172.16.16.20: icmp_seq=2 ttl=64 time=0.059 ms^c--- 172.16.16.20 ping  statistics ---2 PACKETS TRANSMITTED,&Nbsp;2 received, 0% packet loss, time 999msrtt min/avg/max/mdev =  0.059/0.060/0.062/0.007 ms[[email protected] ~]#  Problem Solving!

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Linux Multi-NIC sets the same network segment, causing problems