LINUX.ORG.RU
решено ФорумAdmin

ovh bridge kvm

 , ,


0

1

Привет ЛОР, помоги решить проблему.
Новый сервер в OVH. Небольшая сетка IP.
Через панель OVH создаю MAC 02:00:00:fd:6f:8e для IP 178.33.98.12

Редактирую sysctl.conf => sysctl -p

net.ipv4.ip_forward=1
net.bridge.bridge-nf-call-ip6tables = 0
net.bridge.bridge-nf-call-iptables = 0
net.bridge.bridge-nf-call-arptables = 0

Редактирую interfaces

auto lo br0
iface lo inet loopback
iface br0 inet static
	address 149.202.201.105
	netmask 255.255.255.0
	network 149.202.201.0
	broadcast 149.202.201.255
	gateway 149.202.201.254
	bridge_ports eth0
	bridge_stp off
	bridge_fd 1
	bridge_hello 2
	bridge_maxage 12

Проверяю

# ifconfig
br0       Link encap:Ethernet  HWaddr 0c:c4:7a:79:db:54  
          inet addr:149.202.201.105  Bcast:149.202.201.255  Mask:255.255.255.0
          inet6 addr: fe80::ec4:7aff:fe79:db54/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:86806 errors:0 dropped:0 overruns:0 frame:0
          TX packets:20537 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:4400506 (4.1 MiB)  TX bytes:2083994 (1.9 MiB)

eth0      Link encap:Ethernet  HWaddr 0c:c4:7a:79:db:54  
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:86814 errors:0 dropped:0 overruns:0 frame:0
          TX packets:20694 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:5647572 (5.3 MiB)  TX bytes:2093644 (1.9 MiB)

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:65536  Metric:1
          RX packets:56 errors:0 dropped:0 overruns:0 frame:0
          TX packets:56 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:4536 (4.4 KiB)  TX bytes:4536 (4.4 KiB)

Устанавливаю qemu-kvm => создаю VM => проверяю bridge.

# brctl show
bridge name	bridge id		STP enabled	interfaces
br0		8000.0cc47a79db54	no		eth0
							vnet0

Захожу по VNC на VM и редактирую interfaces согласно мануалу.
http://docs.ovh.ca/en/guides-network-bridging.html#debian-derivatives-ubuntu-...
Основной ип моего сервера 149.202.201.105 => по-этому использую 149.202.201.254

auto lo eth0
iface lo inet loopback
iface eth0 inet static
	address 178.33.98.12
	netmask 255.255.255.255
	broadcast 178.33.98.12
	post-up route add 149.202.201.254 dev eth0
	post-up route add default gw 149.202.201.254
	pre-down route del 149.202.201.254 dev eth0
	pre-down route del default gw 149.202.201.254

Проверяю ifconfig на VM (MAC и IP - все ок) => https://poiuty.com/img/d2/056b99cd00f5ba29eea9db98d14926d2.png
Пытаюсь сделать пинг до 8.8.8.8 не идет => https://poiuty.com/img/11/369a547812328d6b9eae19e2e0ab1211.png

На других серверах (такая же настройка сети для VM) - работает. Что же на этом сервере не так?

Половил трафик через tcpdump - постоянно спамит ARP. (когда VM выключена, когда сеть как bridge/ не как bridge)

# tcpdump -ennqti eth0 \( arp or icmp \)
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.174 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.186 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.246 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.244 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.250 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.189 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.246 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.174 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.181 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.171 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.183 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.1 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.170 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.1 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.177 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.192 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.248 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.188 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > ff:ff:ff:ff:ff:ff, ARP, length 60: Request who-has 149.202.201.180 tell 149.202.201.253, length 46
00:ff:ff:ff:ff:fe > 0c:c4:7a:79:db:54, IPv4, length 60: 92.222.186.1 > 149.202.201.105: ICMP echo request, id 34118, seq 1, length 12
0c:c4:7a:79:db:54 > 00:ff:ff:ff:ff:ff, IPv4, length 46: 149.202.201.105 > 92.222.186.1: ICMP echo reply, id 34118, seq 1, length 12
...


Удалил VMAC для 3 IP => https://poiuty.com/img/48/948e39084549085695d38b3d004fc748.png
Убрал bridge и подключил IP => http://docs.ovh.ca/en/guides-network-ipaliasing.html#debian-derivatives

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
	address 149.202.201.105
	netmask 255.255.255.0
	network 149.202.201.0
	broadcast 149.202.201.255
	gateway 149.202.201.254

auto eth0:0
iface eth0:0 inet static
    address 178.33.98.13
    netmask 255.255.255.255

auto eth0:1
iface eth0:1 inet static
    address 178.33.98.14
    netmask 255.255.255.255

auto eth0:2
iface eth0:2 inet static
        address 178.33.98.15
        netmask 255.255.255.255

post-up /sbin/ifconfig eth0:0 178.33.98.13 netmask 255.255.255.255 broadcast 178.33.98.13
pre-down /sbin/ifconfig eth0:0 down

post-up /sbin/ifconfig eth0:1 178.33.98.14 netmask 255.255.255.255 broadcast 178.33.98.14
pre-down /sbin/ifconfig eth0:1 down

post-up /sbin/ifconfig eth0:2 178.33.98.15 netmask 255.255.255.255 broadcast 178.33.98.15
pre-down /sbin/ifconfig eth0:2 down

# ifconfig
eth0      Link encap:Ethernet  HWaddr 0c:c4:7a:79:db:54  
          inet addr:149.202.201.105  Bcast:149.202.201.255  Mask:255.255.255.0
          inet6 addr: fe80::ec4:7aff:fe79:db54/64 Scope:Link
          inet6 addr: 2001:41d0:1000:969::/64 Scope:Global
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:20893 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3099 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:1346969 (1.2 MiB)  TX bytes:314199 (306.8 KiB)

eth0:0    Link encap:Ethernet  HWaddr 0c:c4:7a:79:db:54  
          inet addr:178.33.98.13  Bcast:178.33.98.13  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0:1    Link encap:Ethernet  HWaddr 0c:c4:7a:79:db:54  
          inet addr:178.33.98.14  Bcast:178.33.98.14  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

eth0:2    Link encap:Ethernet  HWaddr 0c:c4:7a:79:db:54  
          inet addr:178.33.98.15  Bcast:178.33.98.15  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1

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:65536  Metric:1
          RX packets:237 errors:0 dropped:0 overruns:0 frame:0
          TX packets:237 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:22854 (22.3 KiB)  TX bytes:22854 (22.3 KiB)

Проверил ping/ssh до них => не работает.

poiuty
() автор топика
Ответ на: комментарий от poiuty

Саппорт OVH пофиксил проблему (она была с их стороны).

poiuty
() автор топика
Вы не можете добавлять комментарии в эту тему. Тема перемещена в архив.