@Tolgahan No we are not. this is probably just a missing feature or a way to not complicate things under the rug.. unless the network chip inside is really dumb as there is no ambiguity between vlan...

@Tolgahan You can't use static ip, both of your providers use PPPoE ..Yes. it is non-sense, it should use IPoE instead, however many ISP (including mine unfortunately) decided to use this for FTTH...

@Fae This is clearly a bug.. can you forward this to R&D.. vlans are supposedly by port..they could also be bound to a mac address..so I see no reason why what this person wants shouldn't work...

@marpi82 Now that said you will probably find that communication is done using TLS and cannot be decrypted without a man in the middle proxy..if the manufacturer is incomptent they may be using plain...

@marpi82 It is a bummer but this is only possible in standalone mode where you can mirror the port that is connected to Central heating boiler controller to an empty port in the switch/router...

@robinprice We are not getting anywhere,, probably because incomplete inforamtion from your side, so let's try again - A PPPoE interface cannot use an MTU of 1500 (unless the device AND ISP...