Messages

If you have Realtek network cards in the Qotom, then install the vendor driver (os-realtek-re).

That fixed the problem for me.

Hi, I have the Intel (R) Ethernet Controller I225-V

Also I have found a pattern when the power goes out and Qotom and Draytek Modem are rebooted the WAN_DHCP gateway IP gets set to the IP of Opnsense not public IP.

I get the following from the dashboard, the IP's get allocated but not traffic:

Did you create an outbound NAT rule?

Thanks for responding! I have to get the internet working tonight via Opnsense. I have done nothing other than install Opnsense and have igb0 = WAN and igb1 = LAN

Any step by step guidance would be awesome.

The NAT Outbound is already set as the following I didn't change anything:

Automatic rules
       Interface   Source Networks   Source Port   Destination   Destination Port   NAT Address   NAT Port   Static Port   Description
      WAN   LAN networks, Loopback networks, 127.0.0.0/8   *   *   500   WAN   *   YES   Auto created rule for ISAKMP
      WAN   LAN networks, Loopback networks, 127.0.0.0/8   *   *   *   WAN   *   NO   Auto created rule

Problem: Cannot connect to the internet (ISP Static IP > Modem Bridged Modem > OpnSense Atom G5)

ISP Superloop new service connected today with static IP. I don't get it, I have a LAN Interface with the Static IP and DHCP to provide IP's for LAN which is fine. The WAN is set to DHCP for IPv4 and IPv6 and the WAN gets allocated an IP address but I cannot access internet from the LAN?

The Gateway WAN_DHCP goes offline a number of times a day. I am new to Opnsense and need some help to troubleshoot and fix as the internet drops out. WAN comes back online either when I reboot Opnsense or both Draytek 167 and Opnsense, my setup:

ISP > Draytek 167 Modem Bridge Mode > OpnSense (Qotom i5-5250U), DHCP for the LAN and Ad Guard the rest stock settings.

More settings

Hi,

Thanks, the setup I have is below, is this referred to as double NAT? Image attached from Fritzbox the IP's provided downstream are from the Fritzbox and OpnSense is providing IP's to other LAN clients.

Setup:

Telstra NBN (ISP) PPPoE > Fritzbox (Public IP & DHCP 192.168.200.x) > OpnSense (WAN gets IP from Fritzbox) (LAN DHCP 192.168.100.x, DNS 1.1.1.1 etc) > Lan Clients (Get IP from OpnSense)

note Fritzbox does not support bridge mode but does support PPPoE passthrough and that is what I have setup. Do you think the DHCP issue is related to this setup in that OpnSense is requesting DHCP and when doing so Fritzbox drops the connection with Telstra?

I purchased the Fritzbox because it alluded to being able to be a modem bridge but not sure it actually is:

(Computers or router connected to the FRITZ!Box can use PPPoE passthrough to establish additional PPPoE internet connections using their own account information. In this case, the FRITZ!Box acts as a DSL modem for the devices. For example, when using your computer for home office, you can use an additional internet connection with your own account information that your employer provided to you just for home office.)

I found a genuine bridge mode modem and it appears that the public IP is passed to downstream router OpnSense https://www.draytek.com.au/products/adsl-vdsl-modem-routers/vigor167/

What do you think?

 

Hi Bart,

Thanks for the response.

Do a packet capture on the WAN interface around the time of the renewal and confirm that OPNsense sends out a DHCP renewal request over UDP and what happens with it.

Is there something in OpnSense to capture packets or should I use Wireshark?

If this is the case what you say, is there a fix?

Only way I have found so far is to login to the Fritzbox and click reconnect and it does and get a connection and IP from Telstra ISP. But is there something in OpnSense that can be changed to automatically do something to resolve this?

Sorry for the newb questions.

Hi

I have a Fritzbox 7530 in bridged mode with Cloudflare DNS override and OpnSense router plugged into the Fritzbox servicing my LAN.

My internet connection from LAN is getting dropped multiple times a day with Internet connection failed: Reason for error: 4 (DHCPv4 nak)

Does anyone have any idea why? log from FritzBox below, does OpnSense request DHCP on some form of time basis or something:

27.05.23 13:33:04 Internet connection established successfully. IP address: 101.179.113.22, DNS server: 61.9.211.33 and 61.9.211.1, gateway: 101.179.127.254
27.05.23 13:32:58 IPv6 prefix obtained successfully. New prefix: 2001:8003:6409:9700::/56
27.05.23 13:32:58 IPv6 internet connection established successfully. IP address: 2001:8003:f00:7202:6861:e384:a8c2:cb57
27.05.23 13:32:55 IPv6 internet connection was cleared; prefix no longer valid.
27.05.23 13:32:55 Internet connection cleared.
27.05.23 12:29:48 Internet connection failed: Reason for error: 4 (DHCPv4 nak)
27.05.23 01:48:20 Internet connection established successfully. IP address: 101.179.113.22, DNS server: 61.9.211.33 and 61.9.211.1, gateway: 101.179.127.254
27.05.23 01:48:15 Internet connection cleared.
27.05.23 01:48:15 Internet connection failed: Reason for error: 4 (DHCPv4 nak)
27.05.23 00:29:46 Internet connection failed: Reason for error: 4 (DHCPv4 nak)
26.05.23 13:59:09 IPv6 prefix was updated successfully. New prefix: 2001:8003:6415:a200::/56
26.05.23 13:59:04 IPv6 prefix obtained successfully. New prefix: 2001:8003:6415:a200::/56
26.05.23 13:59:04 IPv6 internet connection established successfully. IP address: 2001:8003:f00:7202:6cf2:9ac1:855:745
26.05.23 13:59:04 Could not obtain IPv6 prefix. Reason for error: 4000 (lease timed out)
26.05.23 13:59:04 IPv6 internet connection was cleared; prefix no longer valid.
26.05.23 13:48:15 Internet connection established successfully. IP address: 101.179.113.22, DNS server: 61.9.211.33 and 61.9.211.1, gateway: 101.179.127.254
26.05.23 13:48:12 Internet connection cleared.
26.05.23 13:48:12 Internet connection failed: Reason for error: 4 (DHCPv4 nak)
26.05.23 12:29:41 Internet connection failed: Reason for error: 4 (DHCPv4 nak)
26.05.23 01:48:11 Internet connection established successfully. IP address: 101.179.113.22, DNS server: 61.9.211.33 and 61.9.211.1, gateway: 101.179.127.254
26.05.23 01:48:10 Internet connection cleared.
26.05.23 01:48:09 Internet connection failed: Reason for error: 4 (DHCPv4 nak)
26.05.23 00:29:38 Internet connection failed: Reason for error: 4 (DHCPv4 nak)
25.05.23 13:59:04 IPv6 prefix was updated successfully. New prefix: 2001:8003:6406:9100::/56
25.05.23 13:23:52 Internet connection established successfully. IP address: 101.179.113.22, DNS server: 61.9.211.33 and 61.9.211.1, gateway: 101.179.127.254

Please can I get some advice on recommended known to work FTTN modem (on Telstra NBN) that can put in bridge mode with good performance connected to Qotom Q750G5 (running Opnsense and Wireguard etc).

Part 2 - it is possible to connect from a LAN PC to FTTN modem Admin GUI if so what configuration is required?

Hi,

I want to be able to monitor and be alerted by email when someone using Win10 Laptop on the LAN starts gaming  (Epic Games Rocket League) and when they finish. Just being logged in to Epic Games does not count they have to be playing that is creating traffic.

Any ideas how I could do this or where to start?