I feel like we've made real progress though. I'm just not 100% sure its working correctly. Does this mean its working? I still can't access gateway GUI after removing that line. I'm fairly certain dhcp is enabled on wan, i have wan set to DHCP client, and wan6 to dhcp ipv6 client. In the config settings for Wan, under DHCP server, the "ignore interface" (disable dhcp) check box is unchecked.
Again, thank you and sorry for all the questions.
This covers the situation where it is possible for other devices to 'grab' the DHCP lease from the AT&T server -- this could happen if multiple things are plugged into the AT&T gateway device, but won't happen if the only thing connected is your router.
That said, doing the fixed is fine -- you just need to properly specify the MAC address so that it will work with your router. It may have a dropdown to help you select the right one (without having to enter the MAC manually).
DHCPS-dynamic and DHCPS-fixed will both work just fine -- fixed simply requires the MAC to ensure that another device can never accidentally get the DHCP lease from AT&T. If you use fixed, make sure you enter the MAC properly, and don't forget about this setting if you ever change your router.
For reference, though... what you had chosen earlier was "manual" which was not going to work because you don't have a static IP from AT&T -- that's why I was talking about that stuff.
Oh... you're talking about the AT&T gateway? Yes, this is actually expected because it is using the same subnet as your OpenWrt router (per your screenshot). You will need to change the address of one or the other to be in a different subnet.
I'd recommend simply changing your OpenWrt router to something like 192.168.5.1 and that should fix the issue:
DHCP - Ignore interface should be:
This is the DHCP server that is being configured.
Your wan is a DHCP client (it uses DHCP to get an address from an upstream DHCP server).
Your router runs a DHCP server on your lan so that your client devices (computers, phones, etc.) can request an address from the router.
buddy, you're an absolute legend. i felt real bad asking you all this (like i was challenging you, i wasnt). Communication is hard sometimes. Also, I had no idea it was on manual or even how it got on there. I put it to fixed, that is so weird. It mustve happened when I completely disabled DHCP server in my gateway. I turned it back on now that I'm confident it wont affect the passthrough anyway and have set it to fixed with the correct MAC ID.
You absolutely nailed my issue here.
My last question is: now that I've changed my gateways subnet to 192.168.2.254 (both my NUC and gateway's GUIs are now both accessible, ty), I assume I need to update the lan settings under lan>ipv4 gateway to the new IP? and the associated custom DNS under the lan interface settings? Pictures attached showing both tabs.
Both of those should be blank. Do not enter a value into those fields, especially the gateway
removing. you're the goat.
Is there a way I can run a test to ensure that everything is setup correctly? I'm not double NAT'd - but I wasn't before. And my internet was still working with my janky openwrt settings (even my bufferbloat and dl speeds were good, as well as all my devices connected). So just want to make sure I didnt miss a step somewhere.
I guess its working. Wondering if I even need SQM now. Gonna play with it but damn. What a difference. Thank you.
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