struct.error: unpack_from requires a buffer of at least 3 bytes

[yousefElo]

Hi Everyone ;

When I try running GTscan in LAB environment I get below error :

Traceback (most recent call last):
File "GTScan.py", line 355, in
tcap_recv = unpack_from('!BBB', tcap_reply, offset=66)
struct.error: unpack_from requires a buffer of at least 3 bytes

in pcap traces I see that SCTP is well established, but M3UA was not. I see that the client send a user initiated abort

[SigPloiter]

If you have a pcap can you send it to me please, thanks

…

On Tue, Aug 27, 2019 at 11:44 AM yousef ***@***.***> wrote: Hi Everyone ; When I try running GTscan in LAB environment I get below error : Traceback (most recent call last): File "GTScan.py", line 355, in tcap_recv = unpack_from('!BBB', tcap_reply, offset=66) struct.error: unpack_from requires a buffer of at least 3 bytes in pcap traces I see that SCTP is well established, but M3UA was not. I see that the client send a user initiated abort — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#6?email_source=notifications&email_token=AF265P5USAFKR7E5UV7QS43QGTZPJA5CNFSM4IQBWNY2YY3PNVWWK3TUL52HS4DFUVEXG43VMWVGG33NNVSW45C7NFSM4HHTHUHA>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AF265P5I7XUTEWXAY6AWX4LQGTZPJANCNFSM4IQBWNYQ> .

[yousefElo]

127.0.0.2 is GTscan IP address, and 127.0.0.1 is my ss7 server both located in the same machine :

here are full pcap traces :
test_gtscan.zip

[SigPloiter]

From what if shows in this that port 8011 doesn’t have a m3ua as listening on it ? Because port 8012 is responding to m3ua

…

On Monday, 2 September 2019, yousef ***@***.***> wrote: 127.0.0.2 is GTscan IP address, and 127.0.0.1 is my ss7 server both located in the same machine : [image: image] <https://user-images.githubusercontent.com/10179516/64099766-040d9980-cd62-11e9-9dfe-2cc05c39136b.png> here are full pcap traces : test_gtscan.zip <https://github.com/SigPloiter/GTScan/files/3565076/test_gtscan.zip> — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#6?email_source=notifications&email_token=AF265P534VZU4Y2ZOZW6ZYDQHTD6BA5CNFSM4IQBWNY2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOD5VCQZI#issuecomment-527050853>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AF265P6FA44PYWGWI73Q2V3QHTD6BANCNFSM4IQBWNYQ> .

[SigPloiter]

can you tell me what m3ua server are you using so i can replay the issue

[yousefElo]

I am using jss7, attached is java code :
Server.zip