Hi, Bjorn Thanks a lot for your quick answer. This explains all ! It seems as though there was only one line from this patch was applied, since in the latest git of iproute I see: in include/linux/if_link.h: IFLA_VLAN_PROTOCOL which was added in this patch you mentioned http://www.spinics.net/lists/netdev/msg233587.html but nothing else It is probably a matter of sync between iproute version and kernel version rgs Kevin On Mon, May 6, 2013 at 9:26 PM, Bjørn Mork <bjorn@xxxxxxx> wrote: > Kevin Wilson <wkevils@xxxxxxxxx> writes: > >> 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. > > > That code is pretty new, so you won't find many examples on how to use > it. But the commit message includes an example: > > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/net/8021q/vlan_netlink.c?id=8ad227ff89a7e6f05d07cd0acfd95ed3a24450ca > > You'll naturally need a pretty recent version of iproute2 as well. > Actually, the matching userspace code doesn't seem to be in > http://git.kernel.org/cgit/linux/kernel/git/shemminger/iproute2.git just > yet. So you'd need a not-yet-there version of iproute2 :) > > The iproute2 patch was submitted at the same time as the kernel patch: > http://www.spinics.net/lists/netdev/msg233587.html > > > > Bjørn _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
