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21.7 Legacy Series / proxmox + OPNsense + pppoe, not getting IP on WAN

« on: January 21, 2022, 05:26:02 am »

Hi,

I try to setup OPNsense in proxmox for couple of days now, but I can't figure out why it's not working. First let me start with how the "network layout" looks like:

ISP -> ISP's router which is set to modem mode (so it shouldn't do anything other than passing through the connection) -> proxmox -> OPNsense (which is installed as a VM). First I created the Linux Bridges for the ports on my PC, then I only assigned two network devices to the VM (vmbr1 and vmbr2), just so that I can set it up more easily and later on I will add the rest of the network ports.

Then in OPNsense I assigned vtnet0 to WAN (which is actually my WAN port) and vtnet1 to LAN and I also changed its static IP to 10.0.0.1/24

Here is a link to the screenshots for all the points I mentioned earlier

But the issue is that for some reason OPNsense can't get an IP from my ISP. Or actually I can see an IP there, but for some reason it can't add that IP to the interface? I grabbed the logs from Interfaces -> Point to Point -> Log file and found some interesting entries there:

Code: [Select]

2022-01-19T22:05:30 ppp[78327]  [wan] IPCP: rec'd Terminate Ack #5 (Stopped)     
2022-01-19T22:05:30 ppp[78327]  [wan] IPCP: LayerFinish 
2022-01-19T22:05:30 ppp[78327]  [wan] IPCP: state change Stopping --> Stopped   
2022-01-19T22:05:30 ppp[78327]  [wan] IPCP: rec'd Terminate Ack #4 (Stopping)   
2022-01-19T22:05:30 ppp[78327]  [wan] IPCP: SendTerminateReq #5 
2022-01-19T22:05:28 ppp[78327]  [wan] IFACE: Removing IPv4 address from pppoe0 failed: Can't assign requested address   
2022-01-19T22:05:28 ppp[78327]  [wan] IPCP: LayerDown   
2022-01-19T22:05:28 ppp[78327]  [wan] IPCP: SendTerminateReq #4 
2022-01-19T22:05:28 ppp[78327]  [wan] IPCP: state change Opened --> Stopping     
2022-01-19T22:05:28 ppp[78327]  [wan] IPCP: parameter negotiation failed     
2022-01-19T22:05:28 ppp[78327]  [wan] IFACE: IfaceChangeAddr() error, closing IPCP   
2022-01-19T22:05:28 ppp[78327]  [wan] IFACE: Adding IPv4 address to pppoe0 failed: File exists   
2022-01-19T22:05:28 ppp[78327]  [wan] 77.XXX.XX.104 -> 10.0.0.1 
2022-01-19T22:05:28 ppp[78327]  [wan] IPCP: LayerUp 
2022-01-19T22:05:28 ppp[78327]  [wan] IPCP: state change Ack-Sent --> Opened     
2022-01-19T22:05:28 ppp[78327]  [wan] SECDNS 193.XXX.XX.8   
2022-01-19T22:05:28 ppp[78327]  [wan] PRIDNS 193.XXX.XX.4   
2022-01-19T22:05:28 ppp[78327]  [wan] IPADDR 77.XXX.XX.104   
2022-01-19T22:05:28 ppp[78327]  [wan] IPCP: rec'd Configure Ack #3 (Ack-Sent)

I think 77.XXX.XX.104 would be my IP, but then it doesn't do anything with it.

I couldn't find anything online about the "Adding IPv4 address to pppoe0 failed: File exists" or the "Removing IPv4 address from pppoe0 failed: Can't assign requested address" messages (but probably I just missed it), I am not sure what they mean.

Does anybody know what I messed up in this setup?

Thanks for the help in advance.