Problematic Proxmox simple SDN LAN towards OPNSense

[mpccert]

Hi to all,

I'm currently, having issues with my OPNSense installation on Proxmox. I have VM and OPNSense installed in Proxmox. I used Proxmox SDN simple Lan config to connect to interconnect both the VM and OPNSense

VM<==Simple SDN LAN==>OPNsense(NAT)<===>PCIEbypass<==>Internet

The issue i'm facing right now is that, whenever the VM is restarted, it always loose its connection to the Internet. The Internet connection won't get back but have ping on the direct interface(gw) ip of OPNsense. I I need to restart the OPNSense Interface assigned for that SDN LAN. After restarting the Interface in OPNSense, internet connection will be back again. I already adjusted the MTU as well on the SDN interface but still no luck. Whenever a VM who use OPNSense as Internet GW, always looses its connection to the internet. I've already check the logs but no information can be found for the reason.

Hope someone can help, who experience the same thing.

OPNsense 24.1.10_2-amd64
FreeBSD 13.2-RELEASE-p11
OpenSSL 3.0.14
Proxmox-VE 8.2.2


Thank you,

Mike

 

[drigolin]

I have a similar issue. OPNSense VM with WAN interface on SDN Simplenet DHCP and SNAT. And LAN on bridged network.
OPNSense is able to ping any ip on the internet but any connection is very problematic. packets installation and upgrade is very unstable like any other internet connections from the device. LAN interface seems working fine.
I'm not using any PCIE bypass I use standard virtual network from qemu.