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23.7 Legacy Series / Different ISP bridging no connectivity between lan or access to wan

« on: January 26, 2024, 01:10:34 pm »

Hello

Yesterday I switched from our Belgian ISP Telenet to Orange.
I used the Telenet modem/router combo in bridge mode and do the same with the Orange one.

I did not change anything on my Opnsense machine, except for 1 reboot, but yet it does not allow LAN devices to talk to each other, nor get internet access.
Opnsense receives a WAN IP (dynamic ip) and the Opnsense machine itself can ping to ips outside of my local network through shell.

My Opnsense machine has 1 em0 ethernet port that is connected to the bridge port of the Orange router.
It also has 4 ethernet ports through an Intel NIC. These ports are set up in bridge mode, set up according to the Opnsense LAN Bridge guide.

I don't know how to show you all my settings but other than default settings, these are the settings I am using:

Gateways:
   WAN_DHCP (active)
      interface: WAN
      ip address: dynamic
      upstream gateway: yes
      far gateway: true
      disable gateway monitoring: true
   WAN_DHCP6 (active)
      ip address: dynamic
      upstream gateway: false
      disable gateway monitoring: true

Interfaces:
   LAN:
      bridge0
      block private/bogon networks: false
      ipv4 config: Static ipv4
      ipv6 config: track interface
      ipv4 address: 192.168.0.1
      ipv4 upstream gateway: Auto-detect
      ipv6 interface: WAN
      ipv6 prefix id: 0
   OPT:
      igb0
      block private/bogon networks: false
      ipv4 config: none
      ipv6 config: none
   OPT2:
      igb1
      block private/bogon networks: false
      ipv4 config: none
      ipv6 config: none
   OPT3:
      igb2
      block private/bogon networks: false
      ipv4 config: none
      ipv6 config: none
   OPT4:
      igb3
      block private/bogon networks: false
      ipv4 config: none
      ipv6 config: none
   WAN:
      em0
      block private/bogon networks: true
      ipv4 config: DHCP
      ipv6 config: DHCPv6

Other types -> Bridge:
   Member interfaces: OPT, OPT1, OPT2, OPT3
   Link-local address: false

Unbound DNS:
   Enabled
   port 53
   network interfaces: all


I also noticed that while Opnsense WebGUI doesn't show any firewall logs. If I enter option 10 (firewall log) in shell. I see calls like:
192.168.0.50.58785 > 192.168.0.1.53: 30438+ A? wpad.home.lan. (31) 00:00:00.00007 rule 5/0(match) block in on bridge0: .... etc... proto UDP.   

Does anyone have an idea what might be wrong with my setup?
I have a bit of network knowledge, but mostly hobbyist level (CCNA 1).

When directly connecting a device to the bridged router from Orange, that device will get internet access.