Posted: Tue Jul 15, 2025 20:58 Post subject: Netgear R8000 and VLANs
I have been trying to configure Vlans on my Netgear R8000 but still I have not figured out. In my particular set up the R8000 is not acting as a gateway but only as a Wifi device for my wireless devices on a specific Vlan. But I want to create another VAP assigned to a second Vlan to segment my IoT devices from the main Wifi where computers and phones reside.
I have a Cisco 3750G acting as a my main router and creating the Vlans for my whole network. So far I was using my R8000 on a specific port assigned to the WIFI vlan but now I want to be able to access the IoT Vlan and create a IoT bridge.
Also my R8000 is not acting as a main DHCP but only passing the requests to my firewall
So I setup my switch ports to trunking and connected 2 ports to the R8000.
The first port on Vlan 50 is working and there is where I access the administration for the DDWRT on Vlan 50 but the second port (also configured for trunking on Vlan 30) is not responding to pings.
When I try to do some changes to the configuration on Vlan 30 on port 2 I lost connectivity with Vlan 50 on port 1 where my administration IP is.
The two IPs that I have assigned are
WIFI / Admin 192.168.55.6
IoT 192.168.33.6
Here is the configuration of the ports on the cisco side
Port on vlan 50
interface GigabitEthernet1/0/20
description DD-WRT-R8000 VLAN50
switchport trunk encapsulation dot1q
switchport trunk native vlan 50
switchport trunk allowed vlan 50
switchport mode trunk
power inline never
end
Port on vlan 30
interface GigabitEthernet1/0/21
description DD-WRT-R8000 Vlan 30
switchport trunk encapsulation dot1q
switchport trunk native vlan 30
switchport trunk allowed vlan 30
switchport mode trunk
power inline never
end
brctl show
bridge name bridge id STP enabled interfaces
br0 8000.b03956ee1c06 no eth0
eth1
eth2
eth3
vlan1
vlan2
vlan50
br1 8000.b03956ee1c06 no vlan30
wl1.1