Hi All, Not able to see the decoded trace after SCCP. Its showing as only data after SCCP. Please guide me to see decoded layers of TCAP/GSM_MAP/GSM_SMS protocol. Is there any setting change required Regards, Arpit asked 10 Apr '14, 23:47  Arpit |
2 Answers:
Check tat your GSM MAP ssn preferences matches the ssn used in SCCP. answered 11 Apr '14, 02:02  Anders ♦ |
From the Wireshark GUI, go to Edit > Preferences > Protocols > GSM MAP, and make sure that the called SSN in your SCCP header is included in the list of SSNs to map to this protocol. answered 11 Apr '14, 17:32  Quadratic Its already configured SSN value as 0-8 in GSM MAP. We have used SSN 8 at called GT in SCCP, but in opened trace in wire-shark, I am unable to find any SSN value. Most of all packet is showing with as SSN not present:-- {.... ..0. = SubSystem Number Indicator: SSN not present (0x00)} And for some packet, SSN field value appearing in wire-shark trace as:--- "Expert Info (Warn/Protocol): Message is routed on SSN, but SSN is not present" Please guide. Regard, Arpit (14 Apr '14, 23:12) Arpit Try fiddling with the SCCP preferenses and "Users table", for more help you'll need to publish the trace somewhere so we can have a look at it. (15 Apr '14, 00:44) Anders ♦ I've seen it show 'Message is routed on SSN but SSN is not present" when the MTP3 layer was incorrectly decoding. Under MTP3 preferences, make sure it's set correctly to ITU, ANSI, etc. If it still doesn't work, please upload here and post the URL: https://appliance.cloudshark.org/upload/ (15 Apr '14, 15:27) Quadratic |
Its already configured SSN value as 0-8 in GSM MAP.
We have used SSN 8 at called GT in SCCP, but in opened trace in wire-shark, I am unable to find any SSN value.
Most of all packet is showing with as SSN not present:--
{.... ..0. = SubSystem Number Indicator: SSN not present (0x00)}
And for some packet, SSN field value appearing in wire-shark trace as:---
"Expert Info (Warn/Protocol): Message is routed on SSN, but SSN is not present"
Please guide.
Regard, Arpit