Re: Problem with parsing NGAP UL Configuration Request

[Pascal Quantin <pascal () wireshark org>]

Hi Dincer,

Le mer. 28 avr. 2021 à 17:07, Dincer Beken <dbeken () blackned de> a écrit :

> Hello all,
>
> I am trying to handle the 5G UL Ran configuration transfer message. I am
> encoding an XN TNL Information Item with asn1c. All IEs and messages so far
> have worked well, but the Tunnel Information item does not work for me.
> I cannot see the Tunnel Information elements (IPs.).

Your TransportLayerAddress item has a length of 132 bits, which neither
match an IPv4 only address (32 bits), of 1Pv6 only address (128 bits) or an
IPv4 followed by an IPv6 address (160 bits). Thus wireshark does not try to
decode the payload of this unknown length. If you tried to encode an IPv4
and/or IPv6 address, then you have a bug.

Best regards,
Pascal.


> I am using wireshark version 3.40. I have attached the capture.
>
> I am stuck on this and would appreciate any help. If anyone here is
> experienced with ASN1c/NGAP/S1AP, if I could get an alternative capture, I
> would be very grateful.
>
> Thanks,
> Dincer
>
>
>
>
> *Dincer Beken*
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