I can't use traefik to reverse proxy external services

I have used vmware to build a ubuntu server,and traefik is on the ubuntu's docker.I can use traefik to reverse proxy any services on the same docker.But when comes to other machines' services,it won't do a thing.
Here are all the config files.
traefik.yml:

 global:
   checkNewVersion: true
   sendAnonymousUsage: false
 log:
   level: DEBUG
   filePath: /etc/traefik/logs/traefik.log
 accessLog:
   filePath: /etc/traefik/logs/traefik-access.log
 api:
   dashboard: true
   debug: true
 entryPoints:
   web:
     address: :80
 providers:
   docker:
     exposedByDefault: false
     watch: true
   file:
     filename: /config.yml
     directory: /etc/traefik
     watch: true

docker-compose.yml:

version: "3"
 services:
   traefik:
     image: traefik:latest
     container_name: traefik
     restart: unless-stopped
     security_opt:
       - no-new-privileges:true
     networks: 
       - "test"
     ports:
       - 80:80
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - /etc/localtime:/etc/localtime:ro
       - /home/me/docker/traefik:/etc/traefik
       - /home/me/docker/traefik/config.yml:/config.yml
       - /home/me/docker/traefik/logs:/etc/traefik/logs
     labels:
       - 'traefik.enable=true'
       - 'traefik.http.routers.traefik.entrypoints=web'
       - 'traefik.http.routers.traefik.rule=Host(`traefik.test.lan`)'
       - 'traefik.http.routers.traefik.service=api@internal'
 networks:
   test:
     external: true

Another container on the same docker

 version: "3"
 services:
   nginx:
     image: nginx:latest
     container_name: nginx
     restart: unless-stopped
     networks: 
       - "test"
     ports:
       - 180:80
     volumes:
       - /home/me/docker/nginx/conf.d:/etc/nginx/conf.d
     labels:
       - 'traefik.enable=true'
       - 'traefik.http.routers.nginx.entrypoints=web'
       - 'traefik.http.routers.nginx.rule=Host(`nginx.test.lan`)'

config.yml

 http:
   routers:
     app:
       entryPoints:
         - web
       rule: "Host(`app.test.lan`)"
       service: app
   services:
     app:
       loadBalancer:
         servers:
           - url: "http://192.168.0.191:1235"

Ubuntu‘s ip address is 192.168.0.130.Network test is using bridge mode.
I can visit traefik's dashboard and nginx's site.And I can see app in http router,but when I visit it,it will time out.
Plaese help me.

Just a silly mistake.Working fine now.