Access to Other VM/CT via cURL

[Editor]

Hi, I get a "timeout" when I try to access other guests via Proxmox Shell via cURL.

There is no extra obstacle or command in the firewall. However, access is timing out. What could be the reason for this and how can I turn on port access?

Proxmox 5.4-3

root@compute-ua:~# curl 192.168.128.186
curl: (7) Failed to connect to 192.168.128.186 port 80: Connection timed out

Thank you.

 

[tim]

What do you expect?
If there is nothing running inside those guest which is listening on port 80 then those calls won't return anything.

 

[Editor]

If there is nothing running inside those guest which is listening on port 80 then those calls won't return anything.

There are web servers that respond to 80 ports in the guest but timeout on Proxmox.

For example; I can access the guest server B from the guest server A with cURL and get the response.

What do you expect?

My goal is to run HAproxy on Proxmox and access the guests.
I'm trying to perform scheme 2 in the drawing below