eth0 and eth4 - must be online together!!!
Posted: 2019/02/19 11:00:58
Hi All
I have a strange issue regarding networking. Im not a linux engineer but more vmware and wintel engineer so pls bear with me!
I have a backup server running centos 6.5 (if you need more info let me know).
I backup to LTO7 media a NAS drive, however the speeds are rubbish. So purchased a 10GB NIC (eth4/eth5) card for the server and have installed it fine.
eth0 is on 10.100.209.x
eth1 is on 192.168.x.x
eth2 is on dhcp (unused)
eth3 is on dhcp (unused)
eth4 is on 10.10.209.x
eth5 is not config
When I disable eth0 , eth4 goes offline too. I just simply want to disable eth0 and use eth4 as a primary nic, but eth4 goes offline too until service network restart command is run and then both interfaces come online.
DEVICE=eth0
TYPE=Ethernet
UUID=6f7ec780-88ea-461d-8ad1-xxxxx
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
HWADDR=80:C1:6E:66:xx:xx:xx
IPADDR=10.10.209.x
PREFIX=24
GATEWAY=10.10.209.1
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
DEVICE=eth4
HWADDR=28:80:23:41:xx:xx
TYPE=Ethernet
UUID=2db4a4f9-5f53-4fxd-9396-xxxxd
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.10.209.x
NETMASK=255.255.255.0
GATEWAY=10.10.209.1
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth4"
I have a strange issue regarding networking. Im not a linux engineer but more vmware and wintel engineer so pls bear with me!
I have a backup server running centos 6.5 (if you need more info let me know).
I backup to LTO7 media a NAS drive, however the speeds are rubbish. So purchased a 10GB NIC (eth4/eth5) card for the server and have installed it fine.
eth0 is on 10.100.209.x
eth1 is on 192.168.x.x
eth2 is on dhcp (unused)
eth3 is on dhcp (unused)
eth4 is on 10.10.209.x
eth5 is not config
When I disable eth0 , eth4 goes offline too. I just simply want to disable eth0 and use eth4 as a primary nic, but eth4 goes offline too until service network restart command is run and then both interfaces come online.
DEVICE=eth0
TYPE=Ethernet
UUID=6f7ec780-88ea-461d-8ad1-xxxxx
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=none
HWADDR=80:C1:6E:66:xx:xx:xx
IPADDR=10.10.209.x
PREFIX=24
GATEWAY=10.10.209.1
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
DEVICE=eth4
HWADDR=28:80:23:41:xx:xx
TYPE=Ethernet
UUID=2db4a4f9-5f53-4fxd-9396-xxxxd
ONBOOT=yes
NM_CONTROLLED=yes
BOOTPROTO=static
IPADDR=10.10.209.x
NETMASK=255.255.255.0
GATEWAY=10.10.209.1
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth4"