openstack 实例没有从 DHCP 代理获取 IP

如何解决openstack 实例没有从 DHCP 代理获取 IP

我是 OpenStack 的新手，我遵循 Centos/SELinux 的官方 Train 安装指南。

我的环境只包含两个节点（控制器/计算），都设置在 KVM 上。

Neutron 网络设置：“dhcp”、“flat”、“linux bridge”和“provider” 网络（L2）”。

我检查了 openstack 代理列表。

我从实例控制台收到 dhcp 错误：

Sending discover... [   58.942761] random: nonblocking pool is
initialized Sending discover... Sending discover... Usage:
/sbin/cirros-dhcpc <up|down> No lease,failing
 
//### ifconfig -a (Doesn't get the ip address)

eth0      Link encap:Ethernet  HWaddr FA:16:3E:E1:88:29
          inet6 addr: fe80::f816:3eff:fee1:8829/64 Scope:Link
          UP broADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1014 errors:0 dropped:1 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:65529 (63.9 KiB)  TX bytes:1332 (1.3 KiB)

我尝试过的方法：

1. 禁用控制器和计算节点上的防火墙和网络管理

2. 为已检查的 NIC（控制器和计算节点）设置混杂模式

   ifconfig eth0 promisc

3. 默认安全组开放icmp和tcp：

----------------------ifconfig--------------------

控制器节点：

brqc1e7d6aa-e7: flags=4163<UP,broADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 172.16.1.85  netmask 255.255.255.0  broadcast 172.16.1.255
        ether 52:54:00:46:7e:bc  txqueuelen 1000  (Ethernet)
        RX packets 32969  bytes 5955992 (5.6 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1205  bytes 171485 (167.4 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth0: flags=4419<UP,PROMISC,MULTICAST>  mtu 1500
        ether 52:54:00:46:7e:bc  txqueuelen 1000  (Ethernet)
        RX packets 33218  bytes 6453676 (6.1 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1326  bytes 197451 (192.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=4163<UP,MULTICAST>  mtu 1500
        inet 172.16.1.87  netmask 255.255.255.0  broadcast 172.16.1.255
        ether 52:54:00:ed:68:e6  txqueuelen 1000  (Ethernet)
        RX packets 22892  bytes 1406351 (1.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 10485  bytes 3751553 (3.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 172188  bytes 72724903 (69.3 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 172188  bytes 72724903 (69.3 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

tapbdf66629-5d: flags=4163<UP,MULTICAST>  mtu 1500
        ether 86:67:43:de:38:c7  txqueuelen 1000  (Ethernet)
        RX packets 32  bytes 3632 (3.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 22369  bytes 1349435 (1.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

计算节点：

brqc1e7d6aa-e7: flags=4163<UP,MULTICAST>  mtu 1500
        inet 172.16.1.86  netmask 255.255.255.0  broadcast 172.16.1.255
        ether 52:54:00:a5:12:fb  txqueuelen 1000  (Ethernet)
        RX packets 31383  bytes 4447456 (4.2 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8703  bytes 4719041 (4.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth0: flags=4419<UP,MULTICAST>  mtu 1500
        ether 52:54:00:a5:12:fb  txqueuelen 1000  (Ethernet)
        RX packets 33551  bytes 5047837 (4.8 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 9823  bytes 5122880 (4.8 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eth1: flags=4163<UP,MULTICAST>  mtu 1500
        inet 172.16.1.88  netmask 255.255.255.0  broadcast 172.16.1.255
        ether 52:54:00:c4:41:a3  txqueuelen 1000  (Ethernet)
        RX packets 23675  bytes 1617935 (1.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 9  bytes 426 (426.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 16921  bytes 888367 (867.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 16921  bytes 888367 (867.5 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

tapbcd1eed9-18: flags=4163<UP,MULTICAST>  mtu 1500
        ether fe:16:3e:5a:cf:5c  txqueuelen 1000  (Ethernet)
        RX packets 11  bytes 1674 (1.6 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2673  bytes 564169 (550.9 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

-------控制器配置--------

ml2_conf.ini

[ml2] 
type_drivers = flat,vlan 
tenant_network_types = 
mechanism_drivers = linuxbridge 
extension_drivers = port_security

[ml2_type_flat] 
flat_networks = provider

[securitygroup] 
enable_ipset = true

linuxbridge_agent.ini

 [linux_bridge]  
 physical_interface_mappings = provider:eth0

 [vxlan]  
 enable_vxlan = false

 [securitygroup]  
 enable_security_group = true  
 firewall_driver = neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

感谢您的帮助！！！