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OPNsense Forum

English Forums => General Discussion => Topic started by: laczik on April 16, 2020, 01:48:44 PM

Title: What determines whether new interface is treated as WAN or LAN type for routing
Post by: laczik on April 16, 2020, 01:48:44 PM
If I add a new interface, what settings determine whether it will be treated as WAN or LAN for routing?
Thanks, John
Title: Re: What determines whether new interface is treated as WAN or LAN type for routing
Post by: franco on April 17, 2020, 01:46:09 PM
Gateway setting for each IPv4 and IPv6 config, which is automatically implied when you set it to DHCP or a similar "upstream" connectivity mode.


Cheers,
Franco
Title: Re: What determines whether new interface is treated as WAN or LAN type for routing
Post by: chemlud on April 17, 2020, 01:52:11 PM
...hmmm, but if I set the interface to DHCP just because I want the DHCP server to be something else but the sense box? Some linux machine doing it for this LAN?
Title: Re: What determines whether new interface is treated as WAN or LAN type for routing
Post by: franco on April 17, 2020, 01:56:38 PM
I don't think this matters in real life. When your firewall is DHCP in a LAN the firewall is 99,9% of the time a router between other networks and uses the upstream gateway offered by DHCP. Otherwise you only have an endpoint device, which is fine, but it won't firewall/route.


Cheers,
Franco
Title: Re: What determines whether new interface is treated as WAN or LAN type for routing
Post by: chemlud on April 17, 2020, 05:09:42 PM
So if I want to use an alternative DHCP server on a LAN interface I would keep "Static IP" and use an IP from the relevant subnet, but outside the range of this alternative DHCP server?
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