Forum Discussion
ExpressRoute & Internet access
Hello all, trying to set up a Server which has access to an internal network, but also can be accessed via the internet. These servers will eventually be front end web servers for an on-prem appl...
GEOFFHILL I am assuming that you have a web server running on a VM in Azure cloud. And the expectation is to route the traffic to web application running on onprem server. Basically reverse proxy or application request routing setup. When you setup express route and firewall try following steps to troubleshoot the issue:
- From Azure VM are you able to access internal web application? if you have web browsers on Azure VM you can try accessing the site using web browser else you can run curl command and see if you are getting expected results.
- If you are not able to browse the site issue could be with express route not routing traffic correctly. Or traffic on the port (on which internal web application is running) is getting blocked.
- if you are using FQDN to access internal APP may be Azure VM is not able to resolve that.
- Once you verify that you are able to reach internal VM from Azure VM, try setting up web server on Azure without any routing rules. You can keep simple image or HTML page on web server and first try to access that from internet. If you are not able to access simple html or image it could be because firewall is blocking port or network security group attached to VM or VNET (on azure portal select Virtual machine ->Network -NSG) does not have inbound port 80 allowed.
I hope this helps.