Stuck on Using Web Proxies Module

Hello,
I’m really struggling on just making a basic request in ZAP! In the quick start panel, I enter the IP address given by the question and then click on “Launch Browser”. However, it fails to reach the target. I’ve tried using both ZAP and Burp. I thought maybe it was an issue with the target IP so I tried another but still got the same result. This is for the very first question in the module, “Try intercepting the ping request on the server shown above, and change the post data similarly to what we did in this section.”

What am I doing wrong?

Also, I cannot get the HUD to launch either. I’m not sure if I’ve just completely misunderstood how to access the IP address, or if something else is going on here.

Also, if anyone knows of any other resources for learning ZAP I’d really appreciate it if you could share them. From what I’ve found so far, nothing has been super helpful. Thank you!

Update…
I was finally able to get ZAP to reach the target, but never could get Burp to work. However, I’m still having issues with ZAP. After I intercept the ping request and change the post data, it gives me an error when sending it back to the target. Something about the IP address can’t be reached. I’m so frustrated at this point and about ready to start another module and come back to this one later. I don’t feel like I’m doing anything wrong and it seems to be a technical issue at this point.

What browser are you using to send the requests?

If you are using the Burp Chromium it will intercept every HTTP Request sent in the proxy tab with ‘intercept’ on.

Otherwise, you have to set the configurations on your browser to set a proxy server to the Burp one. There are extensions to Firefox like Foxproxy (which is in Pwnbox) with allows you to turn a proxy server on/off in Firefox easier.
Still, the easier way to intercept traffic is via Burp and its own Chromium browser.

Thanks for your reply. For both Burp and Zap I am using the browser’s built into the tools.