![18.04.1 LTS systemd-network 未应用](https://linux22.com/image/907080/18.04.1%20LTS%20systemd-network%20%E6%9C%AA%E5%BA%94%E7%94%A8%20.png)
我有一个具有两个接口的服务器实例,并且我创建了一条规则来确保进入 ens160 的流量尽管与 ens192 的默认路由匹配,但仍会从 ens160 流出。
使用 手动创建时,路由和规则按预期工作ip
,当通过 netplan 应用时,路由和规则按预期工作netplan apply
,但当使用 netplan 生成的配置文件重新启动 systemd-networkd 时则不然。具体来说,规则未应用。
netplan.yaml:
network:
ethernets:
ens160:
addresses:
- 192.168.1.238/26
- 192.168.1.240/26
- 192.168.1.241/26
dhcp4: false
gateway4: 192.168.1.193
routes:
- to: 0.0.0.0/0
via: 192.168.1.193
table: 200
routing-policy:
- from: 192.168.1.192/26
table: 200
ens192:
addresses:
- 10.125.210.38/23
dhcp4: false
version: 2
/运行/systemd/网络/10-netplan-ens160.网络:
[Match]
Name=ens160
[Network]
Address=192.168.1.238/26
Address=192.168.1.240/26
Address=192.168.1.241/26
Gateway=192.168.1.193
[Route]
Destination=0.0.0.0/0
Gateway=192.168.1.193
Table=200
[RoutingPolicyRule]
From=192.168.1.192/26
Table=200
IP 路由列表:
default via 192.168.1.193 dev ens160 proto static
10.125.210.0/23 dev ens192 proto kernel scope link src 10.125.210.38
192.168.1.192/26 dev ens160 proto kernel scope link src 192.168.1.238
ip 路由列表表 200:
default via 192.168.1.193 dev ens160 proto static
之后netplan apply
,ip rule list
(此配置有效):
0: from all lookup local
0: from 192.168.1.192/26 lookup 200
32766: from all lookup main
32767: from all lookup default
然而,之后systemctl restart systemd-networkd
0: from all lookup local
32766: from all lookup main
32767: from all lookup default
重启 systemd-networkd 后的 systemd 日志:
Nov 20 17:30:28 lb1 systemd[1]: Stopping Network Service...
Nov 20 17:30:28 lb1 systemd[1]: Starting Network Service...
Nov 20 17:30:28 lb1 systemd-networkd[1810]: ens192: Gained IPv6LL
Nov 20 17:30:28 lb1 systemd-networkd[1810]: ens160: Gained IPv6LL
Nov 20 17:30:28 lb1 systemd-networkd[1810]: Enumeration completed
Nov 20 17:30:28 lb1 systemd[1]: Started Network Service.
Nov 20 17:30:28 lb1 systemd-networkd[1810]: ens160: Link is not managed by us
Nov 20 17:30:28 lb1 systemd-networkd[1810]: lo: Link is not managed by us
Nov 20 17:30:28 lb1 systemd-networkd[1810]: lo: Link is not managed by us
Nov 20 17:30:28 lb1 systemd-networkd[1810]: ens192: Configured
Nov 20 17:30:28 lb1 systemd-networkd[1810]: ens160: Configured
更新 1:发出两个命令systemctl restart systemd-networkd
将在第二次调用后应用规则。再发出一次,规则就会消失。日志显示每次都会应用规则,但不是明确应用的:
Nov 20 18:57:52 lb1 systemd-networkd[1461]: ens160: Setting routing policy rules
Nov 20 18:57:52 lb1 systemd-networkd[1461]: ens160: Setting routes
Nov 20 18:57:52 lb1 systemd-networkd[1461]: ens160: Routing policy rule configured
Nov 20 18:57:52 lb1 systemd-networkd[1461]: ens160: Routes set
Nov 20 18:57:52 lb1 systemd-networkd[1461]: ens160: Configured
更新 2:连续netplan apply
切换规则。