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How to open SSCOP/ALCAP protocol stack pcap?

asked 2019-07-08 09:12:14 +0000

Vasily gravatar image

updated 2019-07-08 14:52:52 +0000

Jaap gravatar image

Hello, guys!

We are trying to open dump with SSCOP/ALCAP protocol stack in Wireshark!

We use following guide for pcap header format: https://wiki.wireshark.org/Developmen... We use following guide for data type format: http://www.tcpdump.org/linktypes.html

We tried to change following parameter manually: guint32 network; /* data link type */

We tried following value:

LINK-LAYER HEADER TYPE VALUES
LINKTYPE_name   LINKTYPE_value  Corresponding DLT_name  Description
LINKTYPE_NG40   244             DLT_NG40                Pseudo-header for ng4T GmbH's UMTS Iub/Iur-over-ATM and Iub/Iur-over-IP format as used by their ng40 protocol tester, followed by frames for the Frame Protocol as specified by 3GPP TS 25.427 for dedicated channels and 3GPP TS 25.435 for common/shared channels in the case of ATM AAL2 or UDP traffic, by SSCOP packets as specified by ITU-T Recommendation Q.2110 for ATM AAL5 traffic, and by NBAP packets for SCTP traffic.

But Wireshark shows "network type 244 unknown or unsupported"

How should we operate to open this pcap?

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We are trying to open dump with SSCOP/ALCAP protocol stack in Wireshark!

What program wrote that capture?

What value was used for the data link type?

Guy Harris gravatar imageGuy Harris ( 2019-07-08 20:54:12 +0000 )edit

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answered 2019-07-08 10:52:30 +0000

Anders gravatar image

No one has commited code to Wireshark to read this DLT so you would have to wrire it in that case.

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Asked: 2019-07-08 09:12:14 +0000

Seen: 41 times

Last updated: Jul 08