PPPoE with vlan

stephenw10

Sure upload it here: https://nc.netgate.com/nextcloud/s/j9bwDZZMtLPFoEi

What's the Huawei device shown in the pcap? Is that public IP it is ARPing from your gateway IP?

Kristian_m

@stephenw10 I don't have any Huawei devices, so not sure but the file is uploaded

stephenw10

Great I have that.
In your screenshot though you can see the Huawei device ARPing for public IPs. Is that your gateway?

That traffic is arriving at em0 untagged. I presume it's coming from the ISP gateway.

stephenw10

Actually looking at your IP here it clearly is your ISP.

I don't expect to see that on a PPPoE connection. It implies that the modem you have might not be bridging the PPPoE like you think it is.
Have you tried just setting the pfSense WAN to DHCP? Or in fact just setting the em0 interface to DHCP, hat you have assigned as the OPT interface.

Kristian_m

@stephenw10 Was looking at the ip's where they are from, it's from the company that host most of the internet in Denmark i think (TDC) my ip is 94.147.46.16 I could try to set opt1 as DHCP when i get a chance at it

stephenw10

Exactly. Which means that traffic is somehow being sent to your modem and then passed to pfSense. And if it really is PPPoE only that implies the modem is still doing the PPPoE connection nand the VLAN tagging.

So I would try setting the em0 assigned interface to DHCP and see if it pulls an address.

Or if it's all static IPs just set your IP and gateway on that NIC.

And/or try to check what the modem is actually doing.

Kristian_m

@stephenw10 What DHCP settings should o use, just the defaults?

stephenw10

I would test that first. It still require a VLAN.

It seems unlikely your ISP would specify PPPoE and then not provide that but ARP traffic suggests something unexpected is happening.

Did we confirm that the old router still connects OK?

And you're unable to connect to it to confirm how it's configured?

Steve

Kristian_m

@stephenw10 It's using DHCP with the ip of the old router/now modem, it took only 2 months finding that out. Thanks a lot, you really helped me, have a fantastic day.
Kristian.

stephenw10

Ah, nice!
Yeah it's very easy to get stuck down the wrong path with something like that. Sometimes you need to re-examine the problem.

Steve