Hello friends,

i'm new here and have one question. i have virtual machine (CentOS 7), that have 3 nic:

enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.137 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::7c2f:a798:df68:40bd prefixlen 64 scopeid 0x20<link>
ether 08:00:27:39:c4:8c txqueuelen 1000 (Ethernet)
RX packets 7886 bytes 9089665 (8.6 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2834 bytes 416670 (406.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

enp0s8: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST> mtu 1500
ether 08:00:27:c0:26:20 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 28 bytes 2032 (1.9 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

enp0s9: flags=6211<UP,BROADCAST,RUNNING,SLAVE,MULTICAST> mtu 1500
ether 08:00:27:c0:26:20 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

1. i need to make bond with enp0s8/enp0s9
this is done with configuration files in /etc/sysconfig/network-scripts/bond0

2. then i need to make vlan over bond0
ifcfg-bond0.100

3. then i need to give two ip address on this vlan. do i need additional file for this or is it possible to write both addresses in ifcfg-bond0.100 file?

thanks in advance.

In the same file. Call them IPADDR1 and IPADDR2. You may then also have to create two prefix PREFIX1, PREFIX2 or netmask settings.

Thank youo for your reply I tried:

DEVICE=bond0.100
NAME=bond0.100
BOOTPROTO=none
ONPARENT=yes
IPADDR1=192.168.1.141
IPADDR2=192.168.1.142
NETMASK=255.255.255.0
VLAN=yes
NM_CONTROLLED=no

but it does not works:

bond0.100: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.141 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::a00:27ff:fec0:2620 prefixlen 64 scopeid 0x20<link>
ether 08:00:27:c0:26:20 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 20 bytes 1160 (1.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

Well, as I said, I think you need two netmasks.