[LEDE-DEV] [PATCHv2] ipq806x: add support for ZyXEL NBG6817

[J Mo]

(whoops, resend in plain text)


On 10/17/2016 11:22 PM, John Crispin wrote:
>> +boot_hook_add preinit_main preinit_assign_mtd2block
>> >diff --git a/target/linux/ipq806x/base-files/lib/preinit/05_set_iface_mac_ipq806x.sh b/target/linux/ipq806x/base-files/lib/preinit/05_set_iface_mac_ipq806x.sh
>> >new file mode 100644
>> >index 0000000..b8246ab
>> >--- /dev/null
>> >+++ b/target/linux/ipq806x/base-files/lib/preinit/05_set_iface_mac_ipq806x.sh
>> >@@ -0,0 +1,21 @@
>> >+#
>> >+# Copyright (C) 2009 OpenWrt.org
>> >+#
>> >+
>> >+. /lib/ipq806x.sh
>> >+. /lib/functions/system.sh
>> >+
>> >+preinit_set_mac_address() {
>> >+	case $(ipq806x_board_name) in
>> >+		nbg6817)
>> >+			mac_lan=$(dd if=/dev/mtdblock9 bs=1 skip=4 count=65532 2>/dev/null | tr \\0 \\n | grep ^ethaddr= | cut -d= -f2)
>> >+			[ -n "$mac_lan" ] && {
>> >+				ifconfig eth0 hw ether "$mac_lan"
>> >+				mac_wan=$(macaddr_add "$mac_lan" 1)
>> >+				ifconfig eth1 hw ether "$mac_wan"
>> >+			}
>> >+			;;
>> >+	esac
>> >+}
> please set this inside
> target/linux/ipq806x/base-files/etc/board.d/02_network   you can find an
> example of how to set the mac inside
> target/linux/ramips/base-files/etc/board.d/02_network
>

This needs to go into preinit or the non-unique MAC addresses will be 
propagated to all user-configured VLAN subinterfaces, if VLANs are used. 
I have the same problem with my ipq806x device.

Putting the config into the board.d network file is not sufficient, 
because it will only set the correct MAC address on whichever interface 
belongs to the "wan" and/or "lan" interface-policy(or whatever you call 
it). If that interface is a sub-interface (eth0.1), then the hardware 
interface (eth0) remains unfixed, and thus all other VLAN sub-interfaces 
end up with with the non-unique MAC addresses, resulting in ethernet 
address conflicts if more than one device is connected to a network.

I am not sure why the other ipq806x devices are not doing this. They all 
have the same problem.