How to set custom Vendor ID on Asus RT-AC66U (AdvancedTomato or stock firmware)

nrdwka · May 25, 2018

Hello,
I try to replace my French's ISP fiber box-router by Asus RT-AC66U. For now i run latest AdvancedTomato firmware.
For that purpose i need:

On tomato firmware i found an option called "dhcp client (wan)" and i entered: -V "BYGTELIAD"

But seems it does not correct as i do not have IP address on my wan interface.
Does anyone know how correctly set vendor id on wan interface for tomato or stock firmware via gui or telnet?
Kind regards

eibgrad · May 25, 2018

Try the following instead:

--clientid=BYGTELIAD

nrdwka · May 26, 2018

eibgrad :

Thank you for response, but still cannot connect :/

bill001g · May 26, 2018

It has been a while since I messed with tagging on these routers. There historically has been a issue with what the vlan is called and what the tag value represents. There is some field that you used to use called offset.

I know in even in cisco commercial gear there were issues trying to use vlan tags over 1000. You would call the vlan say 500 and have it send a tag of 3000. They have fixed that but you still see similar restriction on some smaller linksys switches.

Be really nice if you could plug a pc into the wan port and actually capture the packet with wireshark to see if the tags are set. I know last time I tried this microsoft had rigged it that the tag fields were stripped before the wireshark got it. Linux should not have that restriction but i was too lazy to build a boot image.

Still it might be worth plugging a pc into the wan port with wireshark and make sure the DHCP request has all the proper fields being set.

nrdwka · May 26, 2018

bill001g :

It has been a while since I messed with tagging on these routers. There historically has been a issue with what the vlan is called and what the tag value represents. There is some field that you used to use called offset.

I know in even in cisco commercial gear there were issues trying to use vlan tags over 1000. You would call the vlan say 500 and have it send a tag of 3000. They have fixed that but you still see similar restriction on some smaller linksys switches.

Be really nice if you could plug a pc into the wan port and actually capture the packet with wireshark to see if the tags are set. I know last time I tried this microsoft had rigged it that the tag fields were stripped before the wireshark got it. Linux should not have that restriction but i was too lazy to build a boot image.

Still it might be worth plugging a pc into the wan port with wireshark and make sure the DHCP request has all the proper fields being set.

Thank you, i will investigate.
Strangely, i just tried to use Asuswrt-Merlin and connection was established without any issue o.o

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How to set custom Vendor ID on Asus RT-AC66U (AdvancedTomato or stock firmware)

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