一个可行的解决方案是利用定义为here的出口路由器资源，它使用专用源IP地址将流量重定向到指定的IP：

apiVersion: v1
kind: Pod
metadata:
  name: egress-1
  labels:
    name: egress-1
  annotations:
    pod.network.openshift.io/assign-macvlan: "true" 
spec:
  initContainers:
  - name: egress-router
    image: registry.redhat.io/openshift4/ose-egress-router
    securityContext:
      privileged: true
    env:
    - name: EGRESS_SOURCE 
      value: <egress_router>
    - name: EGRESS_GATEWAY 
      value: <egress_gateway>
    - name: EGRESS_DESTINATION 
      value: <egress_destination>
    - name: EGRESS_ROUTER_MODE
      value: init
  containers:
  - name: egress-router-wait
    image: registry.redhat.io/openshift4/ose-pod

示例配置如下所示：

apiVersion: v1
kind: Pod
metadata:
  name: egress-multi
  labels:
    name: egress-multi
  annotations:
    pod.network.openshift.io/assign-macvlan: "true"
spec:
  initContainers:
  - name: egress-router
    image: registry.redhat.io/openshift4/ose-egress-router
    securityContext:
      privileged: true
    env:
    - name: EGRESS_SOURCE
      value: 192.168.12.99/24
    - name: EGRESS_GATEWAY
      value: 192.168.12.1
    - name: EGRESS_DESTINATION
      value: |
        203.0.113.25
    - name: EGRESS_ROUTER_MODE
      value: init
  containers:
  - name: egress-router-wait
    image: registry.redhat.io/openshift4/ose-pod

Egress Router pod由Service公开，并链接到需要发送出站SNMP陷阱的应用程序：

apiVersion: v1
kind: Service
metadata:
  name: egress-1
spec:
  ports:
  - name: snmp
    port: 162
  type: ClusterIP
  selector:
    name: egress-1

应用程序将SNMP陷阱发送到暴露Egress Router pod的服务的ClusterIP/Service-Name，然后pod将请求重定向到指定的远程服务器。重定向后，源IP将更改为Egress Router资源中指定的源IP。有关在重定向模式下实现Egress Router的详细信息，请参阅此处。

请注意，根据您的网络配置，您可能需要将 assign-macvlan 字段配置到其他NIC接口，并将其设置为该接口的名称，例如 * eth 1*。