Hi
On 2021-11-15, e9hack wrote:
> I'm using two tp-link routers. Both are using the same mac address for one
> eth and one wlan interface:
>
> archer c7-v2:
> uboot 60:xx:xx:xx:xx:E6
> eth0 60:xx:xx:xx:xx:E7
> eth1 60:xx:xx:xx:xx:E6
> wlan0 60:xx:xx:xx:xx:E4 5G
> wlan1 60:xx:xx:xx:xx:E6 2.4G
>
> wdr3600:
> uboot C0:xx:xx:xx:xx:60
> eth0 C0:xx:xx:xx:xx:60
> wlan0 C0:xx:xx:xx:xx:5F 2.4G
> wlan1 C0:xx:xx:xx:xx:60 5G
>
> It looks like if an address decrement is missing for one wlan interface. I
> don't know if this can trigger a problem.
The rule is to follow the MAC assignments of the OEM firmware, not
to invent new MAC addresses (which then can overlap in practice and
create real problems). It's quite possible that the OEM firmware
shared the same MAC address for one wired, and one wireless interface
that generally won't cause too much trouble.
The documented behaviour for the tl-wdr3600 would be:
LAN label
WAN label + 1
5G label
2G label - 1
according to
https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=a4260eaab7744c8e3f1f7a62a61aab5e3b562342
Regards
Stefan Lippers-Hollmann
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