[Dd_Novice1]

I'm trying to prevent access to the DDWRT portal over wifi. And make it only accessible through a wired connection. I'm stuck and have no idea how to do it.

Also, how would i set it up to only be accessible by a particular port?

[egc]

Welcome to the forum

To get the best out of DDWRT and the forum, read and follow the forum guidelines:
https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=324087

We cannot answer your question without knowing the router model and build number, that is why the forum guidelines state to always include router model and build number

[eibgrad]

Disabling wireless GUI access is pretty simple. Look under Wireless->Advanced Wireless Settings. The tricky part is limiting the wired access to a single port, because by default, all the ports are part of a common VLAN, usually vlan1. To isolate a single port would require creating a new VLAN (e.g., vlan3) for the remaining ports, which then necessitates moving the wireless network interfaces of the default bridge (br0) over to a new bridge (e.g., br1) along w/ the new VLAN, then finally assigning br1 its own IP network, DHCP server, DNS servers, etc. IOW, br1 effectively replaces br0 as the default network. Throw in some firewall rules to limit access by 192.168.2.0/24 to 192.168.1.0/24 and the GUI specifically, and you've got something close to what you want. But this all assumes you can reconfigure the VLANs, which isn't always the case, given they are proprietary, and typically only supported on dd-wrt w/ Broadcom chipsets.

In short, the denial of wireless access is trivial, but limiting wired access to a single port is a whoooooole 'nother ballgame. And unless you're prepared to deal w/ all that complexity, perhaps not worth the trouble. A good compromise might be to limit access to the GUI by specific LAN IPs and/or MAC addresses. That's pretty simple to do.

[egc]

Disabling wireless access in the GUI is dependant on router model only a subset of routers have that functionality, that is why we need to know the router model

[Dd_Novice1]

I have an archer a7 v5.

[egc]

I think those will not have that feature

[Alozaros]