# This is a port query **URL:** \ **Category:** Wowza Streaming Engine\ **Tags:** wowza-streaming-engine\ **Created:** [October 29, 2021, 12:22pm UTC](https://community.wowza.com/t/this-is-a-port-query/94040 "2021-10-29T12:22:36Z")\ **Posts on this page:** 1\ **Page:** 1
**Author:** ![heeyeon\_jang](https://avatars.discourse-cdn.com/v4/letter/h/3ec8ea/32.png) [@heeyeon\_jang](https://community.wowza.com/u/heeyeon_jang)\ **Post date:** [October 29, 2021, 12:22pm UTC](https://community.wowza.com/t/this-is-a-port-query/94040/1 "2021-10-29T12:22:36Z")
This is a port query. The web page ip is 10.1.1.2:8080 Wowza uses 172.3.5.142 And the client IP is 102.50.3.5 102.50.3.5 \<-\> 172.3.5.143 has 1935 port open, but In 10.1.1.2 \<-\> 172.3.5.143, only 8087 is open. Even in this case, can the 102.50.3.5 client see the video provided by 172.3.5.143:1935 through the 10.1.1.2 web page?? Also, is it related to the CORS error? Access to XMLHttpRequest at from [http://172.3.5.143:1935/live/IoT.stream/playlist.m3u8](http://172.3.5.143:1935/live/IoT.stream/playlist.m3u8) from orign ‘[http://10.1.1.2:8080](http://10.1.1.2:8080)’ has been blocked by CORS error appears.