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RT-AC86U Interfaces

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Goobi

Regular Contributor
Hi Community,

I was wondering if anyone knows what the following interfaces are used for (I provided what I think they are but would like confirmation/clarification):

bcmsw
br0 -->Bridge interface: Does all traffic flow through this interface?
eth0 -->This is for internet traffic I think
eth1 -->Physical port but which one
eth3 -->Physical port but which one
eth3 -->Physical port but which one
eth4 -->Physical port but which one
eth5 -->Physical port but which one
eth6 -->Physical port but which one
tun15 --> This is for my VPN client5

Are a couple of the ethX ports for wifi? Also, what interface or interfaces would the wireless flow through as I don't see any listed like wl0.1/wl1.1 which I had on my 68U.

Thanks!
 
br0 is the LAN bridge.
eth0 is the WAN interface
The others will depend on your router model. Two of them are the wifi interfaces (they don't show any wl0/wl1 interface because they use a different architecture). They can be seen with

Code:
nvram get sta_phy_ifnames

The rest will be the Ethernet switch ports.
 
br0 is the LAN bridge.
eth0 is the WAN interface
The others will depend on your router model. Two of them are the wifi interfaces (they don't show any wl0/wl1 interface because they use a different architecture). They can be seen with

Code:
nvram get sta_phy_ifnames

The rest will be the Ethernet switch ports.

Thanks much Merlin!
 
eth5 and eth6 are wifi on my RT-AC86U

/tmp/home/root# nvram get sta_phy_ifnames
eth5 eth6
 
I recently got an RT-AC86u. I am playing with it, chained WAN-to-LAN to an AC68u. These are the interfaces it lists as i have it
Code:
# brctl show
bridge name     bridge id               STP enabled     interfaces
br0             8000.04d9f572f510       yes             eth1
                                                        eth2
                                                        eth3
                                                        eth4
                                                        eth5
                                                        eth6
                                                        wl0.1
Note that I only have one guest network on the 2.4 radio.

Edit: The WAN interface is not listed by brctl show. I got it from NVRAM:
Code:
#nvram get wan0_ifname
eth0
So, WAN is eth0, WIFI eth5-6, which leaves eth1-4. Are they mapped one to one to the LAN ports? I have just found this in NVRAM:
Code:
# nvram get wired_ifnames
eth1 eth2 eth3 eth4
So it seems they are mapped one to one.
 
Last edited:
Dear @RMerlin

br0 is the LAN bridge.
eth0 is the WAN interface
The others will depend on your router model. Two of them are the wifi interfaces (they don't show any wl0/wl1 interface because they use a different architecture). They can be seen with

Code:
nvram get sta_phy_ifnames

The rest will be the Ethernet switch ports.

For RT-AC86U:

eth0 - WAN
eth1 - LAN 4
eth2 - LAN 3
eth3 - LAN 2
eth4 - LAN 1
eth5 - WLAN 2.4 GHz
eth6 - WLAN 5 GHz

Sincerely
 

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