Hi we are trying to create a L2oGRE tunnel between a WiFi controller and RB912.
RouterOs does support GRE however looking at the packets we see the GRE protocol is set to (0x0800) and for L2oGRE to work we need (0x6558).
Is there any way to change the protocol of the GRE tunnel to (0x6558)?
Any suggestions would be appreciated.
Kind regards,
Andre
GRE is 0x0800 = L3 overlay encapsulation = GRE over IP protocol
NVGRE is 0x6558 = L2 overlay encapsulation = GRE over Ethernet protocol
The RFC is clear, and you can not change the number.
Is like to try ftp protocol to use webpage on http protocol simpy change the port from 80 to 21…
I think it not possible for now with RouterOS. You inly can ask mikrotik support to add this feature.
It some standard (RFC, IEEE)? It supported under Linux?
If replies on this question positive, then You can ask mikrotik support for this feature.
PS. It nos only change protocol type, it change packet processing - support for new encapsulation protocol.
I found description of protocol. http://tools.ietf.org/html/draft-tsenevir-l2vpn-gre-00
And this about it work in linux http://blog.asiantuntijakaveri.fi/2012/01/reliable-ip-over-multiple-unrealiable.html#comment-form
May be mikrotik just miss gretap when introduce standard GRE tunnel?