openstack虚机路由配置

时间：2023-06-27 18:09:01 | 来源：网站运营

时间：2023-06-27 18:09:01 来源：网站运营

openstack虚机路由配置：最近需要在openstack的实例虚机配置公网网卡，网卡信息配置无误。

208 vi ifcfg-eth0

209 vi ifcfg-eth1

210 vi ifcfg-eth2

211 route show

212 route -n

213 vi ifcfg-eth2

214 vi ifcfg-eth1

215 vi ifcfg-eth0

216 systemctl status sshd




BOOTPROTO=static

DEFROUTE=yes

DEVICE=eth1

GATEWAY=219.128.180.65

IPADDR=219.128.180.70

MTU=1500

NETMASK=255.255.255.192

ONBOOT=yes

TYPE=Ethernet

USERCTL=no




1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000

link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

inet 127.0.0.1/8 scope host lo

valid_lft forever preferred_lft forever

inet6 ::1/128 scope host

valid_lft forever preferred_lft forever

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000

link/ether fa:16:3e:b8:25:55 brd ff:ff:ff:ff:ff:ff

inet 172.81.201.40/24 brd 172.81.201.255 scope global noprefixroute dynamic eth0

valid_lft 61947sec preferred_lft 61947sec

inet6 fe80::f816:3eff:feb8:2555/64 scope link

valid_lft forever preferred_lft forever

3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000

link/ether fa:16:3e:64:6d:fc brd ff:ff:ff:ff:ff:ff

inet 219.128.180.70/26 brd 219.128.180.127 scope global noprefixroute eth1

valid_lft forever preferred_lft forever

inet6 fe80::f816:3eff:fe64:6dfc/64 scope link

valid_lft forever preferred_lft forever

4: eth2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000

link/ether fa:16:3e:40:27:3c brd ff:ff:ff:ff:ff:ff

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可是openstack内部网络互访正常，外网无法访问公网，ping不同。

说明虚机网卡信息没有出去集群到交换机的路由表上。于是添加静态路由，引导虚机路由扩散。

170 route add -net 192.0.0.0/8 gateway 172.81.201.1 dev eth0

171 route add -net 172.0.0.0/8 gateway 172.81.201.1 dev eth0

174 route add -net 10.0.0.0/8 gateway 172.81.201.1 dev eth0

最后 systemctl restart network 就成功外网访问

需要sshd固定端口，则修改

vi /etc/ssh/sshd_config

systemctl restart sshd