Opnsense installed in proxmox configured pppooee and no internet on proxmox

[alonewolf]

So i only have 2 ports on my motherboard I bought a NIC but unfortunately opnsense was not supported with it so yeah.I have proxmox installed on my system with an internal ip of 192.168.100.9/24. I installed opnsense as a vm and set the lan interface to be the same as proxmox and set an ip of 192.168.100.49 and the wan interface was set to the extra port I had on my motherboard. Lan interface is attached to a managed network switch and wan interface is directly plugged into the isp modem. I bridged the connection from my isp modem to opnsense dialed in all the pppooe credentials and volla opensense recieved an ip and it started working and then I plugged a tp link router to managed switch and got internet out of wifi as well. But the problem was that I had no internet on my proxmox server like I could access the web ui but could not obtain internet on any vm or create another vm becasue there was no internet so I am really confused what did i do wrong is it because opnsense lan ip is on the same subnet as proxmox or something else. Please enlighten me.

[cookiemonster]

Have you set the proxmox's linux bridge to have its gateway as the OPN's IP ?

[alonewolf]

I think I forgot to do that,I removed the installation will have to do it again.

[alonewolf]

Have you set the proxmox's linux bridge to have its gateway as the OPN's IP ?

I set the gateway but was still not working.

[cookiemonster]

what's your CIDR on the linux bridge?

[alonewolf]

192.168.100.9/24 ipv4/cidr

[cookiemonster]

I've re-read your initial post and see you only have two physical nics. I misread it that you were diagnosing something slightly different.
OK, so seems like WAN and LAN setup and clients all OK. Just going out from the firewall itself.
System > Settings > General.
What you have enabled and entered there for DNS ?.

Also check the results of System > Firmware > Status : Run an audit drop down and do a "Connectivity check".
Post results if you can and get failures. If you do, it'll be useful the whole result block in code tags.

[dMopp]

Sounds like missing default route on guest. Did you add the opnsense IP as Gateway to the VMs and is there a firewall rule allowing lan to wan traffic ?