HELP - Problem Troubleshooting Connection to Private Web Server from External Network
I'm new to the forum, so I hope I've come to the right place to seek help.
I have a Watchguard XTM 515 in a test lab. It's been reset.
I've setup an inbound http-proxy with SNAT, so I can connect a PC on the external network to an ISS web server on the Optional network. Everything is configured as per the technical material, but I cannot access the web server.
The firebox traffic monitor shows the inbound connection is Allowed. I ran Wireshark packet capture at the PC and webserver and noticed SYN,ACK retransmissions at the web server interface, but after many hours I cannot find the problem. The link contains a schematic of the architecture and screenshot of the configuration.
I have since discovered I cannot browse the Internet from a device on the internal interface, neither can I ping the external interface or Internet router. I can ping the interfaces from inside the firewall.
If anyone can offer help I would be grateful.