[英]CentOS VM(managed by Openstack) add a seconary IP but seconary IP cannot ping other host's IP
我想從 Openstack 管理的 CentOS VM 中為“eth0”添加一個輔助 IP 地址。 結果是:無法從輔助 IP ping 另一個 VM 的 IP。 你能幫忙嗎?
重現步驟:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 inet 172.22.42.220/24 brd 172.22.42.255 scope global noprefixroute dynamic eth0 valid_lft 83609sec preferred_lft 83609sec
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 inet 172.22.42.220/24 brd 172.22.42.255 scope global noprefixroute dynamic eth0 valid_lft 83368sec preferred_lft 83368sec inet 172.22.42.222/32 brd 172.22.42.255 scope global eth0 valid_lft forever preferred_lft forever
您必須首先在 openstack 中將附加(多個)ip 地址設置為相同的端口 ID。
這是一個例子:
neutron port-update a5e93de7-927a-5402-b545-17f79538d3a6 --allowed_address_pairs list=true type=dict mac_address=ce:9e:5d:ad:6d:80,ip_address=10.101.11.5 ip_address=10.101.11.6
然后你可以檢查:
neutron port-show a5e93de7-927a-5402-b545-17f79538d3a6
因此,如果您知道您的 openstack 服務器實例名稱,那么您可以通過以下方式找到端口 ID:
openstack port list --server testserver01
+--------------------------------------+------+-------------------+------------------------------------------------------------------------------+--------+
| ID | Name | MAC Address | Fixed IP Addresses | Status |
+--------------------------------------+------+-------------------+------------------------------------------------------------------------------+--------+
| a5e93de7-927a-5402-b545-17f79538d3a6| | fa:16:3e:5d:73:24 | ip_address='10.10.0.1', subnet_id='89387a48-5c5e-4dd0-8e0a-2181c97ec19a' | ACTIVE |
+--------------------------------------+------+-------------------+------------------------------------------------------------------------------+--------+
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