question about vlan driver

[Kevin Wilson]

Hello,
I have a short question about vlan driver;

I see in the vlan driver the following code when creating a new vlan interface:



vlan_newlink() {
...
if (data[IFLA_VLAN_PROTOCOL])
proto = nla_get_be16(data[IFLA_VLAN_PROTOCOL]);
else
proto = htons(ETH_P_8021Q);
...
}

see:
http://lxr.free-electrons.com/source/net/8021q/vlan_netlink.c#L105

I understand that in the common case, proto is ETH_P_8021Q.
How can it be set to a different value when creating a vlan interface ?
And to which other values can it be set ?

I did not find anything by "vconfig --help",  and also by probing into
the userspace code of the vconfig tool.

any ideas?

Regards,
Kevin