On how he did that, Wireshark dissectors can attach each other to dissect
payloads if they apply for them. So in this case, the MPLS dissector has a
hook, to which either the ETH dissector has attached or was called by the
MPLS dissector.

-
Roland

On Fri, Sep 16, 2016 at 3:03 AM, Guy Harris <[email protected]> wrote:

> On Sep 15, 2016, at 4:13 PM, barcaroller <[email protected]> wrote:
>
> > I would not expect to see an Ethernet header right below an MPLS header.
>
> See
>
>         https://tools.ietf.org/html/rfc4448
>
> which is called "Encapsulation Methods for Transport of Ethernet over MPLS
> Networks".
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