Network not working in KVM

  • Thread starter Thread starter synet2k
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synet2k

Guest
Hi

I created a KVM with CentOS 5.8 but couldn't get the network working. attached are the config files,

/etc/pve/qemu-server/103.conf
bootdisk: virtio0
cores: 4
ide2: local:iso/CentOS-5.8-x86_64-bin-DVD-1of2.iso,media=cdrom
memory: 512
name: test.domain.com
net0: virtio=4E:CB:A1:52:5F:4C,bridge=vmbr0
ostype: l26
sockets: 1
virtio0: local:103/vm-103-disk-1.raw

/etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
ONBOOT=yes
HWADDR=4E:CB:A1:52:5F:4C
IPADDR=118.122.241.222
NETMASK=255.255.255.0
NETWORK=118.122.241.222.0

/etc/sysconfig/network-scripts/network
NETWORKING=yes
NETWORKING_IPV6=no
HOSTNAME=test.domain.com
GATEWAY=118.122.241.1

Can anyone help? Thank you.
 
Last edited by a moderator:
Address HWtype HWaddress Flags Mask Iface
118.122.241.1 ether 00:00:0C:07:AC:C6 C eth0
 
Last edited by a moderator:
please confirm these ip addresses, because it looks as if no ip has been set/assigned to the kvm vm.

proxmox host: 118.122.241.222
kvm vm: ??

ARP should list a second IP of the kvm vm.

Please post output of
ip route and ipconfig
 
Last edited:
Hi xcooling,

thanks for your reply.

my proxmox host ip: 118.122.241.200
my centos vm ip: 118.122.241.222
gateway is 118.222.241.1

ip route:
118.122.241.0/24 dev eth0 proto kernel scope link src 118.122.241.222
169.254.0.0/16 dev eth0 scope link
default via 118.122.241.1 dev eth0

ifconfig:
eth0 Link encap:Ethernet HWaddr 4E:CB:A1:52:5F:4C
inet addr:118.122.241.222 Bcast:118.122.241.255 Mask:255.255.255.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:35494 errors:0 dropped:0 overruns:0 frame:0
TX packets:430 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2269426 (2.1 MiB) TX bytes:19202 (18.7 KiB)

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:181 errors:0 dropped:0 overruns:0 frame:0
TX packets:181 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:18212 (17.7 KiB) TX bytes:18212 (17.7 KiB)
 
proxmox host:

ip route:
118.122.241.0/24 dev vmbr0 proto kernel scope link src 118.122.241.200
default via 118.122.241.1 dev vmbr0

ifconfig:
eth0 Link encap:Ethernet HWaddr 00:e0:81:43:bd:d0
inet6 addr: fe80::2e0:81ff:fe43:bdd0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:405025 errors:0 dropped:0 overruns:0 frame:0
TX packets:262986 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:90367500 (86.1 MiB) TX bytes:102564861 (97.8 MiB)
Interrupt:18 Memory:df420000-df440000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:277996 errors:0 dropped:0 overruns:0 frame:0
TX packets:277996 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:46623590 (44.4 MiB) TX bytes:46623590 (44.4 MiB)

tap103i0 Link encap:Ethernet HWaddr 7a:ba:fa:6a:31:3d
inet6 addr: fe80::78ba:faff:fe6a:313d/64 Scope:Link
UP BROADCAST RUNNING PROMISC MULTICAST MTU:1500 Metric:1
RX packets:693 errors:0 dropped:0 overruns:0 frame:0
TX packets:63163 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:500
RX bytes:37984 (37.0 KiB) TX bytes:4058181 (3.8 MiB)

venet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 -00
inet6 addr: fe80::1/128 Scope:Link
UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:3 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

veth101.0 Link encap:Ethernet HWaddr 00:18:51:38:a9:47
inet6 addr: fe80::218:51ff:fe38:a947/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:308 errors:0 dropped:0 overruns:0 frame:0
TX packets:95630 errors:0 dropped:941 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:22828 (22.2 KiB) TX bytes:5162014 (4.9 MiB)

veth203.0 Link encap:Ethernet HWaddr 00:18:51:87:46:78
inet6 addr: fe80::218:51ff:fe87:4678/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:18061 errors:0 dropped:0 overruns:0 frame:0
TX packets:112106 errors:0 dropped:980 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1685913 (1.6 MiB) TX bytes:6376351 (6.0 MiB)

veth206.0 Link encap:Ethernet HWaddr 00:18:51:13:82:51
inet6 addr: fe80::218:51ff:fe13:8251/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:36248 errors:0 dropped:0 overruns:0 frame:0
TX packets:130844 errors:0 dropped:975 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:21146740 (20.1 MiB) TX bytes:25508706 (24.3 MiB)

vmbr0 Link encap:Ethernet HWaddr 00:e0:81:43:bd:d0
inet addr:118.122.241.200 Bcast:118.122.241.255 Mask:255.255.255.0
inet6 addr: 2403:cc00:7000:0:2e0:81ff:fe43:bdd0/64 Scope:Global
inet6 addr: fe80::2e0:81ff:fe43:bdd0/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:330637 errors:0 dropped:0 overruns:0 frame:0
TX packets:188380 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:58422877 (55.7 MiB) TX bytes:77878667 (74.2 MiB)
 
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