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General Discussion / Re: Opnsense access from WAN system (Daisy chained router)
« on: September 28, 2024, 05:58:07 am »
Scratch that. It worked. Thank you!
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The source needs to be "any".
In my case, wouldnt the default gateway be the router which my system is using? So it would be right?Right when trying to access across the Internet. Wrong if there is an entire WAN network and you are trying to access the UI from a PC connected to that same network as OPNsense and the default gateway.
In that case sending the reply packets to the gateway instead of using ARP on the local network is exactly what makes the UI access fail.
I wonder why that "magic" exists at all. OPNsense should follow its routing table and that's that. Unless explicit policy routing is configured.
P.S. use tcpdump on WAN and observe what happens.
I also disable "Firewall: Settings: Advanced - Reply To" for my daisy chained OPNsenses since when you communicate with them on the WAN port they send the packet back to their default gateway instead.
In my experience that one needs a restart of the router.
Disable the anti-lockout rule and also disable force gateway (in Firewall > Settings > Advanced). That *should* do it.