Hi!

I am using wire shark version 1.4.6 and i am trying to send encoded PCAP (Positioning Calculation Application Part) packet (POSITION INITIATION REQUEST message) over SUA (SS7 SCCP-User Adaptation Layer) between a Radio Network Controller (RNC) and the Stand-Alone SMLC (SAS) accordance with 3GPP standart. But when i send it wireshark is unable to recognize the PCAP protocol and it displays: Protocol is SUA (RFC 3868) and info is CORE. However PCAP packet is correctly decoded.

Could some one please help me on this or have a SUA trace whith PCAP message?

Thanks.

No.     Time        Source                Destination           Protocol Info
    323 46.555464   10.1.1.204            10.1.1.191            SUA (RFC 3868) CORE

Stream Control Transmission Protocol, Src Port: 40000 (40000), Dst Port: 20000 (20000)
    Source port: 40000
    Destination port: 20000
    Verification tag: 0x3f59bad4
    Checksum: 0x1f9809b6 (not verified)
    DATA chunk(unordered, complete segment, TSN: 1527587857, SID: 0, SSN: 0, PPID: 4, payload length: 168 bytes)
        Chunk type: DATA (0)
            0... .... = Bit: Stop processing of the packet
            .0.. .... = Bit: Do not report
        Chunk flags: 0x07
            .... ...1 = E-Bit: Last segment
            .... ..1. = B-Bit: First segment
            .... .1.. = U-Bit: Unordered delivery
            .... 0... = I-Bit: Possibly delay SACK
        Chunk length: 184
        TSN: 1527587857
        Stream Identifier: 0x0000
        Stream sequence number: 0
        Payload protocol identifier: SUA (4)
SS7 SCCP-User Adaptation Layer
    Version: Release 1 (1)
    Reserved: 00
    Message Class: Connection-Oriented messages (8)
    Message Type: Connection Request (CORE) (1)
    Message Length: 168
    Routing context (1 context)
        Parameter Tag: Routing context (0x0006)
        Parameter Length: 8
        Routing context: 1
    Protocol class (2)
        Parameter Tag: Protocol class (0x0115)
        Parameter Length: 8
        Reserved: 000000
        Protocol Class
            0... .... = Return On Error Bit: No Special Options
            .000 0010 = Protocol Class: 2
    Source reference number (1)
        Parameter Tag: Source reference number (0x0104)
        Parameter Length: 8
        Source Reference Number: 1
    Destination address
        Parameter Tag: Destination address (0x0103)
        Parameter Length: 24
        Routing Indicator: Route on SSN + IP Address (4)
        Address Indicator
            0000 0000 0000 0... = Reserved Bits: 0
            .... .... .... .0.. = Include GT: False
            .... .... .... ..0. = Include PC: False
            .... .... .... ...1 = Include SSN: True
        Subsystem number (249)
            Parameter Tag: Subsystem number (0x8003)
            Parameter Length: 8
            Reserved: 000000
            Subsystem Number: 249
        IPv4 address (10.1.1.191)
            Parameter Tag: IPv4 address (0x8004)
            Parameter Length: 8
            IP Version 4 address: 10.1.1.191 (10.1.1.191)
    Sequence control (1)
        Parameter Tag: Sequence control (0x0116)
        Parameter Length: 8
        Sequence Control: 1
    Source address
        Parameter Tag: Source address (0x0102)
        Parameter Length: 24
        Routing Indicator: Route on SSN + IP Address (4)
        Address Indicator
            0000 0000 0000 0... = Reserved Bits: 0
            .... .... .... .0.. = Include GT: False
            .... .... .... ..0. = Include PC: False
            .... .... .... ...1 = Include SSN: True
        Subsystem number (250)
            Parameter Tag: Subsystem number (0x8003)
            Parameter Length: 8
            Reserved: 000000
            Subsystem Number: 250
        IPv4 address (10.1.1.204)
            Parameter Tag: IPv4 address (0x8004)
            Parameter Length: 8
            IP Version 4 address: 10.1.1.204 (10.1.1.204)
    SS7 hop counter (15)
        Parameter Tag: SS7 hop counter (0x0101)
        Parameter Length: 8
        Reserved: 000000
        SS7 Hop Counter: 15
    Importance (5)
        Parameter Tag: Importance (0x0113)
        Parameter Length: 8
        Reserved: 000000
        Importance: 5
    Data (SS7 message of 58 bytes)
        Parameter Tag: Data (0x010b)
        Parameter Length: 62
        Data: 0001404035000003001c000260b6001d0002518000420022...
        Padding: 0000
Data (58 bytes)
    Data: 0001404035000003001c000260b6001d0002518000420022...
    [Length: 58]

asked 18 Nov '11, 07:58

sifu's gravatar image

sifu
31337
accept rate: 0%

edited 18 Nov '11, 10:28

Guy%20Harris's gravatar image

Guy Harris ♦♦
11.7k228147


Try setting the PCAP preference (Edit->Preferences->Protocols->PCAP) for the SSNs to 249 and/or 250.

link

answered 18 Nov '11, 11:39

JeffMorriss's gravatar image

JeffMorriss ♦
3.3k448
accept rate: 26%

Thank you i had not set the pcap preferences, now i see the correct pcap packet

(20 Nov '11, 23:09) sifu
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Asked: 18 Nov '11, 07:58

Seen: 2,119 times

Last updated: 21 Nov '11, 06:43

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