Hello everyone,
I seem to have a similar problem here.
My setup:
Virtualized OPNsense (Proxmox VE)
1 primary WAN connection
5 additional IP addresses created via additional virtual interfaces (created in Proxmox with assigned MAC addresses).
All IP addresses use the same upstream IP address as a gateway (Hetzner).
Previously: Corresponding firewall rules were created for each interface. In addition, corresponding port forwarding rules with automatic outbound NAT rules were created.
The traffic worked perfectly.
After the switch to 26.1, no traffic could be delivered. After all IP addresses were supplemented with /32, the traffic at least arrived at the respective host again. However, no responses were received from the services behind the additional IP addresses, while all packets running via the primary WAN connection continued to run unhindered.
It turned out that the packets were apparently being routed via vtnet0 instead of vtnet1, vtnet2, etc.
This means that the packets are apparently being discarded because they are coming back from a different interface than the one they came in on.
Despite numerous adjustments in all possible places, I have not been able to route the outgoing packets correctly via the interfaces through which they entered. Is this a bug?
I would be very grateful for any help!
I seem to have a similar problem here.
My setup:
Virtualized OPNsense (Proxmox VE)
1 primary WAN connection
5 additional IP addresses created via additional virtual interfaces (created in Proxmox with assigned MAC addresses).
All IP addresses use the same upstream IP address as a gateway (Hetzner).
Previously: Corresponding firewall rules were created for each interface. In addition, corresponding port forwarding rules with automatic outbound NAT rules were created.
The traffic worked perfectly.
After the switch to 26.1, no traffic could be delivered. After all IP addresses were supplemented with /32, the traffic at least arrived at the respective host again. However, no responses were received from the services behind the additional IP addresses, while all packets running via the primary WAN connection continued to run unhindered.
It turned out that the packets were apparently being routed via vtnet0 instead of vtnet1, vtnet2, etc.
This means that the packets are apparently being discarded because they are coming back from a different interface than the one they came in on.
Despite numerous adjustments in all possible places, I have not been able to route the outgoing packets correctly via the interfaces through which they entered. Is this a bug?
I would be very grateful for any help!
"