Wireshark · Wireshark-users: [Wireshark-users] hi，can you give me some help about PPPoE packets?

["LIU Wei O" <Wei.o.Liu@xxxxxxxxxxxxxxxxxxxx>]

Hi,dear shark,

  I have a question about ‘PPPoE payload length’.

  As we know In RFC 2516,It defined the ‘Length field’ :

 

The LENGTH field is sixteen bits. The value, in network byte order,

indicates the length of the PPPoE payload. It does not include the

length of the Ethernet or PPPoE headers.

 

 

You can refer to the packet that be captured in SNI(service network interface) in the annex,you can find that

In dscovery stage ,the payload length is right ,however in session stage ,wireshark judge it has some error because it

think the ‘payload length’ should contain the pads and CRC.

 

incongruous operation mechanism between dscovery stage and session stage in the PPPoE.

 

Now we use the R1.2.9,when will the issue be delivered?

 

Best regards

                                    Yours

                                                                               Wei liu

 

Liuwei

***I am here,but also there.***

 

Attachment: PPP_SNI.pcap
Description: PPP_SNI.pcap