How to remove a vnet0 interface?
In troubleshooting a no connectivity issue on a newly rolled out kvm host machine, I'm noticing a second bridge interface that isn't needed and may have been created previously: vnet0
[user@box]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.14187769b69a no em1
vnet0
virbr0 8000.5254003ada63 yes virbr0-nic
[user@box]# ip route
default via 111.111.111.2 dev br0
169.254.0.0/16 dev br0 scope link metric 1006
111.111.111.0/23 dev br0 proto kernel scope link src 111.111.111.44
192.168.122.0/24 dev virbr0 proto kernel scope link src src 192.168.122.1
Here is the ifcfg-br0 and em1 files respectively:
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0
TYPE=Bridge
BOOTPROTO=static
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=br0
PREFIX=23
DEVICE=br0
ONBOOT=yes
IPADDR=111.111.111.44
GATEWAY=111.111.111.2
DNS1=4.4.4.4
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
NM_CONTROLLED=no
NAME=em1
DEVICE=em1
ONBOOT=yes
BRIDGE=br0
A sister EL7 system with fully functioning network bridge looks like this:
[user@box]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.141877699b no em1
virbr0 8000.5254004bc0f4 yes virbr0-nic
[user@box]# ip route
default via 111.111.111.2 dev br0
111.111.111.0/23 dev br0 proto kernel scope link src 111.111.111.222
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0
TYPE=Bridge
BOOTPROTO=static
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=br0
PREFIX=23
DEVICE=br0
ONBOOT=yes
IPADDR=111.111.111.222
GATEWAY=111.111.111.2
DNS1=4.4.4.4
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
NM_CONTROLLED=no
NAME=em1
DEVICE=em1
ONBOOT=yes
BRIDGE=br0
I tried using virsh net-destroy vnet0, but am seeing failed to get network vnet0
How do I remove the rougue vnet0 interface from the first example?
centos networking network-interface bridge
asked May 3 '17 at 21:20
a codera coder
1,04472848
bumped to the homepage by Community♦ 18 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
In troubleshooting a no connectivity issue on a newly rolled out kvm host machine, I'm noticing a second bridge interface that isn't needed and may have been created previously: vnet0
[user@box]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.14187769b69a no em1
vnet0
virbr0 8000.5254003ada63 yes virbr0-nic
[user@box]# ip route
default via 111.111.111.2 dev br0
169.254.0.0/16 dev br0 scope link metric 1006
111.111.111.0/23 dev br0 proto kernel scope link src 111.111.111.44
192.168.122.0/24 dev virbr0 proto kernel scope link src src 192.168.122.1
Here is the ifcfg-br0 and em1 files respectively:
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0
TYPE=Bridge
BOOTPROTO=static
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=br0
PREFIX=23
DEVICE=br0
ONBOOT=yes
IPADDR=111.111.111.44
GATEWAY=111.111.111.2
DNS1=4.4.4.4
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
NM_CONTROLLED=no
NAME=em1
DEVICE=em1
ONBOOT=yes
BRIDGE=br0
A sister EL7 system with fully functioning network bridge looks like this:
[user@box]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.141877699b no em1
virbr0 8000.5254004bc0f4 yes virbr0-nic
[user@box]# ip route
default via 111.111.111.2 dev br0
111.111.111.0/23 dev br0 proto kernel scope link src 111.111.111.222
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0
TYPE=Bridge
BOOTPROTO=static
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=br0
PREFIX=23
DEVICE=br0
ONBOOT=yes
IPADDR=111.111.111.222
GATEWAY=111.111.111.2
DNS1=4.4.4.4
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
NM_CONTROLLED=no
NAME=em1
DEVICE=em1
ONBOOT=yes
BRIDGE=br0
I tried using virsh net-destroy vnet0, but am seeing failed to get network vnet0
How do I remove the rougue vnet0 interface from the first example?
centos networking network-interface bridge
asked May 3 '17 at 21:20
a codera coder
1,04472848
bumped to the homepage by Community♦ 18 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
In troubleshooting a no connectivity issue on a newly rolled out kvm host machine, I'm noticing a second bridge interface that isn't needed and may have been created previously: vnet0
[user@box]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.14187769b69a no em1
vnet0
virbr0 8000.5254003ada63 yes virbr0-nic
[user@box]# ip route
default via 111.111.111.2 dev br0
169.254.0.0/16 dev br0 scope link metric 1006
111.111.111.0/23 dev br0 proto kernel scope link src 111.111.111.44
192.168.122.0/24 dev virbr0 proto kernel scope link src src 192.168.122.1
Here is the ifcfg-br0 and em1 files respectively:
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0
TYPE=Bridge
BOOTPROTO=static
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=br0
PREFIX=23
DEVICE=br0
ONBOOT=yes
IPADDR=111.111.111.44
GATEWAY=111.111.111.2
DNS1=4.4.4.4
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
NM_CONTROLLED=no
NAME=em1
DEVICE=em1
ONBOOT=yes
BRIDGE=br0
A sister EL7 system with fully functioning network bridge looks like this:
[user@box]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.141877699b no em1
virbr0 8000.5254004bc0f4 yes virbr0-nic
[user@box]# ip route
default via 111.111.111.2 dev br0
111.111.111.0/23 dev br0 proto kernel scope link src 111.111.111.222
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0
TYPE=Bridge
BOOTPROTO=static
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=br0
PREFIX=23
DEVICE=br0
ONBOOT=yes
IPADDR=111.111.111.222
GATEWAY=111.111.111.2
DNS1=4.4.4.4
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
NM_CONTROLLED=no
NAME=em1
DEVICE=em1
ONBOOT=yes
BRIDGE=br0
I tried using virsh net-destroy vnet0, but am seeing failed to get network vnet0
How do I remove the rougue vnet0 interface from the first example?
centos networking network-interface bridge
asked May 3 '17 at 21:20
a codera coder
1,04472848
In troubleshooting a no connectivity issue on a newly rolled out kvm host machine, I'm noticing a second bridge interface that isn't needed and may have been created previously: vnet0
[user@box]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.14187769b69a no em1
vnet0
virbr0 8000.5254003ada63 yes virbr0-nic
[user@box]# ip route
default via 111.111.111.2 dev br0
169.254.0.0/16 dev br0 scope link metric 1006
111.111.111.0/23 dev br0 proto kernel scope link src 111.111.111.44
192.168.122.0/24 dev virbr0 proto kernel scope link src src 192.168.122.1
Here is the ifcfg-br0 and em1 files respectively:
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0
TYPE=Bridge
BOOTPROTO=static
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=br0
PREFIX=23
DEVICE=br0
ONBOOT=yes
IPADDR=111.111.111.44
GATEWAY=111.111.111.2
DNS1=4.4.4.4
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
NM_CONTROLLED=no
NAME=em1
DEVICE=em1
ONBOOT=yes
BRIDGE=br0
A sister EL7 system with fully functioning network bridge looks like this:
[user@box]# brctl show
bridge name bridge id STP enabled interfaces
br0 8000.141877699b no em1
virbr0 8000.5254004bc0f4 yes virbr0-nic
[user@box]# ip route
default via 111.111.111.2 dev br0
111.111.111.0/23 dev br0 proto kernel scope link src 111.111.111.222
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0
TYPE=Bridge
BOOTPROTO=static
IPV4_FAILURE_FATAL=no
IPV6INIT=no
NAME=br0
PREFIX=23
DEVICE=br0
ONBOOT=yes
IPADDR=111.111.111.222
GATEWAY=111.111.111.2
DNS1=4.4.4.4
[user@box ~]# cat /etc/sysconfig/network-scripts/ifcfg-em1
TYPE=Ethernet
NM_CONTROLLED=no
NAME=em1
DEVICE=em1
ONBOOT=yes
BRIDGE=br0
I tried using virsh net-destroy vnet0, but am seeing failed to get network vnet0
How do I remove the rougue vnet0 interface from the first example?
centos networking network-interface bridge
centos networking network-interface bridge
asked May 3 '17 at 21:20
a codera coder
1,04472848
asked May 3 '17 at 21:20
a codera coder
1,04472848
edited May 3 '17 at 21:35
a coder
asked May 3 '17 at 21:20
a codera coder
1,04472848
asked May 3 '17 at 21:20
a codera coder
1,04472848
asked May 3 '17 at 21:20
a codera coder
1,04472848
1,04472848
bumped to the homepage by Community♦ 18 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
bumped to the homepage by Community♦ 18 mins ago
This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
To disable virbr0, try:
virsh net-destroy default
virsh net-undefine default
service libvirtd restart
ifconfig
answered Jan 3 '18 at 21:27
Yolateng0Yolateng0
11
add a comment |
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To disable virbr0, try:
virsh net-destroy default
virsh net-undefine default
service libvirtd restart
ifconfig
answered Jan 3 '18 at 21:27
Yolateng0Yolateng0
11
add a comment |
To disable virbr0, try:
virsh net-destroy default
virsh net-undefine default
service libvirtd restart
ifconfig
answered Jan 3 '18 at 21:27
Yolateng0Yolateng0
11
add a comment |
To disable virbr0, try:
virsh net-destroy default
virsh net-undefine default
service libvirtd restart
ifconfig
answered Jan 3 '18 at 21:27
Yolateng0Yolateng0
11
To disable virbr0, try:
virsh net-destroy default
virsh net-undefine default
service libvirtd restart
ifconfig
answered Jan 3 '18 at 21:27
Yolateng0Yolateng0
11
answered Jan 3 '18 at 21:27
Yolateng0Yolateng0
11
answered Jan 3 '18 at 21:27
Yolateng0Yolateng0
11
answered Jan 3 '18 at 21:27
Yolateng0Yolateng0
11
11
add a comment |
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