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I am new to this community and try my first troubleshooting on an UTM 8.
Internet provider: German Telekom
Router: Bintec Elmeg / Digitalisierungsbox Premium, WAN-IP fix, LAN-IP 192.168.99.1
Portforwarding on Router: exposed host on UTM 8 (192.168.99.10), 80 on UTM 8, 443 on UTM 8
UTM8: Set up as Firewall and DNS-Forwarder, now trying to run reverse-proxy for internal web-server UTM8-Interfaces: - WAN-interface (eth1) 192.168.99.10.- LAN-interface (eth0) 192.168.100.254 (=gateway for network)UTM8-Services:VirtualWebServer on WAN-Interface (https&reconnect) with Let's encrypt refers to webserver
WirtualWebServer von LAN-Interface (https&reconnect) with Let's entcrypt refers to webserver
Domain:example.domain.tld refers to fix external IP
Network:webserver: IP 192.168.100.4 port 80
DNS: resolves example.domain.tld to external IP (So far no split DNS configured)
External http/https-requests work perfectly.
Internal requests are not going to reverse-proxy (VirtualWebServer) nor do they reach webserver. Web-frontend of the router shows up, when trying to access example.domain.tld.
Somehow the http/https-reqeust from 192.168.100.0/24 seems to get malrouted to 192.168.99.1. Can anyboby help me?
Thank you in advance!
Hi Johannes Neimann
What is the firmware version of the Sophos UTM? I ask this because UTM8 is end of life for a long time now.
In reply to Jaydeep:
I'm sorry: It's a UTM 9. Firmware is 9.700-5.
Since yesterday I found a "workaround" that does not really solve the problem but works particularly: I added a DNS-hostname to my internal servers entry.
Still I think that my router outside my protected network should not answer the https-requests from the internal network.
In reply to Johannes Neimann:
Hallo Johannes and welcome to the UTM Community!
sounds like you found the best solution.
Cheers - Bob