[FS#612] WAN to LAN leakage on MT7620 devices
openwrt-bugs at lists.openwrt.org
Thu Aug 6 06:15:25 EDT 2020
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FS#612 - WAN to LAN leakage on MT7620 devices
User who did this - Mikael Broström (sweroam-mibr)
I have this issue also, and also a other problem. the default port-map like llllw or wllll etc will create leak between lan ports also.
causing loops, err-disabled or spanning-tree issues.
I use some port as trunk ports later in openwrt...
i wrote a test patch to the driver that does the following config instead of dts wllll or llllw etc..:
this is the result that openwrt gets before the switch is initialized..
/ # swconfig dev switch0 show|grep -e link -e pvid -e vlan
link: port:0 link:down
link: port:1 link:down
link: port:2 link:down
link: port:3 link:down
link: port:4 link:down
link: port:5 link:down
link: port:6 link:up speed:1000baseT full-duplex
link: port:7 link:down
it works well to prevent leak between all ports on init (fixes: lan to wan lek, lan to lan leak)
i then let openwrt initialize the switch using my configuration.. with correct cpu port and config.
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