WAN MAC Address

[SJMarty]

I must be blind as a bat...where do I find my router's WAN MAC? I have an ASUS RT-AC66R running v378.51. Thanks.

 

[RMerlin]

I must be blind as a bat...where do I find my router's WAN MAC? I have an ASUS RT-AC66R running v378.51. Thanks.

It's usually on a label at the bottom of your router.

 

[SJMarty]

It's usually on a label at the bottom of your router.

The MAC address on the bottom of my router is the MAC for the 2.4 GHz wireless. The other other MAC I have found in the UI is the MAC for the 5 GHz wireless. Both the LAN and 2.4 GHz MACs are found under the 2.4 GHz tab under System Status. The 5 GHz tab shows the LAN MAC and the 5 GHz MAC.

So, I'm still a bit confused...

Is the LAN MAC supposed to be the same as the 2.4 GHz MAC?
Where can I find the WAN port MAC?

Thanks.

 

[RMerlin]

The MAC address on the bottom of my router is the MAC for the 2.4 GHz wireless. The other other MAC I have found in the UI is the MAC for the 5 GHz wireless. Both the LAN and 2.4 GHz MACs are found under the 2.4 GHz tab under System Status. The 5 GHz tab shows the LAN MAC and the 5 GHz MAC.

So, I'm still a bit confused...

Is the LAN MAC supposed to be the same as the 2.4 GHz MAC?
Where can I find the WAN port MAC?

Thanks.

Running the following command over SSH will give you the WAN interface's MAC:

ip link show eth0

LAN and 2.4 GHz share the same MAC. No idea if it's by design or a bug, but that has always been the case for Asus's routers.

 

[SJMarty]

Running the following command over SSH will give you the WAN interface's MAC:

ip link show eth0

This returned the same MAC so I ran the following...

ip link show

The router responded...

1: lo: <LOOPBACK,MULTICAST,UP,10000> mtu 16436 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether XX:XX:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff
5: vlan1@eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc noqueue
    link/ether XX:XX:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff
6: vlan2@eth0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop
    link/ether XX:XX:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff
7: br0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc noqueue
    link/ether XX:XX:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff
8: eth1: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether XX:XX:XX:XX:XX:XX brd ff:ff:ff:ff:ff:ff
9: eth2: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether YY:YY:YY:YY:YY:YY brd ff:ff:ff:ff:ff:ff

XX:XX:XX:XX:XX:XX is the MAC the UI reports for LAN and 2.4 GHz. eth0, vlan1, vlan2, br0, and eth1 all report the same MAC.
YY:YY:YY:YY:YY:YY is the MAC the UI reports for 5 GHz. eth2 reports this MAC.

Sorry, not trying to be a PITA. Just confused...

 

[SJMarty]

Sorry, not trying to be a PITA. Just confused...

Maybe someone can confirm the same results on their router?

 

[ColinTaylor]

Yes, that's normal. As RMerlin said, it's unusual but that's the way ASUS do it.

admin@RT-N66U:/# ip link show
1: lo: <LOOPBACK,MULTICAST,UP,10000> mtu 16436 qdisc noqueue
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether bc:ee:7b:c3:78:a8 brd ff:ff:ff:ff:ff:ff
3: eth1: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether bc:ee:7b:c3:78:a8 brd ff:ff:ff:ff:ff:ff
4: eth2: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000
    link/ether bc:ee:7b:c3:78:ac brd ff:ff:ff:ff:ff:ff
5: vlan1@eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc noqueue
    link/ether bc:ee:7b:c3:78:a8 brd ff:ff:ff:ff:ff:ff
6: br0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc noqueue
    link/ether bc:ee:7b:c3:78:a8 brd ff:ff:ff:ff:ff:ff

admin@RT-N66U:/# nvram get wan0_hwaddr
BC:EE:7B:C3:78:A8

 

[fusionstream]

My 2 cents?

LAN and WAN (and 2.4GHz) share the same MAC on my Asus as well. That's why WAN traffic is over vlan2 which confused the hell out of me until now.

 

[lettucehead]

Thank you all so much