Change "l2protocol tunnel" (01-00-0c-cd-cd-d0) MAC address

[niklashoglund]

Hi,

So "l2protocol tunnel" change the destination MAC for the L2CP to 01-00-0c-cd-cd-d0, is it possible to change this address?

Would like to tunnel it using another MAC address as we have some "conflicts".

I have an ASR920, looks like in the manuals that its not possible...

[balaji.bandi]

The encapsulation involves rewriting the destination media access control (MAC) address in the PDU. An ingress edge switch rewrites the destination MAC address of the PDUs received on a Layer 2 tunnel port with the Cisco proprietary multicast address (01-00-0c-cd-cd-d0). The PDU is then flooded to the native VLAN of the Layer 2 tunnel port. If you enable Layer 2 protocol tunneling on a port, PDUs of an enabled protocol are not sent out. If you disable Layer 2 protocol tunneling on a port, the disabled protocols function the same way they were functioning before Layer 2 protocol tunneling was enabled on the port.

check the link below and suggestions :

https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/l2pt.html

https://www.ccexpert.us/ccie-2/layer-2-protocol-tunneling.html

[niklashoglund]

The purpose and function of L2PT is clear.

The question was how to set an arbitary L2 Multicast address (instead of 01-00-0c-cd-cd-d0).

When there are multiple tiers of L2 service providers using L2PT, it doesnt work very well...

[network_baba]

Any resolution on this?