Re: [PWE3] PW type identification

[Luca Martini <lmartini at cisco.com>]

Yaakov Stein wrote:
>  
>
>   
>> The current (incomplete and heuristic) logic in wireshark is based on
>>     
> the first nibble after the MPLS Label Stack, 
>   
>> treating the payload as IPv4 (if "4"), IPv6 (if "6"), PW-ACH (if "1")
>>     
> and Ethernet without FCS the rest of the cases. 
>
> Carlos, 
>
> There seems to be a whole in this logic.
> Although most MAC addresses will start with 0000,
> there are MAC addresses that start with 0001 too
> (and there is no reason that there will not be with 4 and 6 in the
> future).
>
>   
Last time I checked those were dead IEEE mac allocations. So it's 
unlikely they will ever be used.

Luca

> Y(J)S
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>   

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