Wireshark-users: [Wireshark-users] Force Wireshark to decode part of Data as another protocol
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From: Rayne <hjazz6@xxxxxxxxx>
Date: Mon, 21 Jul 2014 23:15:29 -0700
Hi all,

I have some traffic samples where the Layer 2 is PPP and the next protocol field value is 0x0281, which indicates MPLS Unicast. There are 4 bytes following this PPP header before I see the IP header. However, Wireshark has decoded everything after the PPP header as Data. I can't choose the "Decode As" option in this case, as it is greyed out. How can I force Wireshark to decode the 4 bytes after the PPP header as something else, say MPLS in this case?

Thank you.