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error in bgs2 communication with tls | Telit Cinterion IoT Developer Community

July 12, 2018 - 2:36pm, 5725 views

I have created 4 certificates.

I try to establish a secure communication with tls and when sending the command AT ^ SISO = 1  get

OK

^ SIS: 1,0,62, "Unknown internal TLS error"

Can we know the reason?

The complete log:

ATE0

OK

AT^SBNR=IS_CERT

 

^SBNR: 0, size: "654", issuer: "/C=ES/ST=Madrid/L=Alcala de Henares/O=Modemsys/OU=Modemsys/CN=Modemsys S.L.", serial number: "4334ECD1", subject: "/C=ES/ST=Madrid/L=Alcala de Henares/O=Modemsys/OU=Modemsys/CN=Modemsys S.L.", signature: "sha1RSA", thumbprint algorithm: "sha1", thumbprint: "34D8696A0BE7AC58B9C4772B5F0CA4D7F3FDB72E"

^SBNR: 1, size: "1939", issuer: "/C=US/O=Google Trust Services/CN=Google Internet Authority G3", serial number: "26BCA5446030C32B", subject: "/C=US/ST=California/L=Mountain View/O=Google LLC/CN=*.google.com", signature: "Unknown", thumbprint algorithm: "sha1", thumbprint: "EF4AE5F84F63E12F26D94B12AB346A4E2C13465F"

^SBNR: 2, size: "1623", issuer: "/C=US/O=Let's Encrypt/CN=Let's Encrypt Authority X3", serial number: "03A0C5DC7F02830CAF561D6DA840B448D67A", subject: "/CN=inventario.modemsys.com", signature: "Unknown", thumbprint algorithm: "sha1", thumbprint: "DCCCF5F9C56696650CE6283E41A4BCC60FED6893"

^SBNR: 3, size: "529", issuer: "/CN=ModemsysCA", serial number: "ECAA89E5E8C8038C4FD783CCF5702968", subject: "/CN=test.modemsys.com", signature: "Unknown", thumbprint algorithm: "sha1", thumbprint: "ECC5B02381D824E57C4979A432686C98BFB5C51D"

^SBNR: 4, size: "0", issuer: "", serial number: "", subject: "", signature: "", thumbprint algorithm: "", thumbprint: ""

^SBNR: 5, size: "0", issuer: "", serial number: "", subject: "", signature: "", thumbprint algorithm: "", thumbprint: ""

^SBNR: 6, size: "0", issuer: "", serial number: "", subject: "", signature: "", thumbprint algorithm: "", thumbprint: ""

^SBNR: 7, size: "0", issuer: "", serial number: "", subject: "", signature: "", thumbprint algorithm: "", thumbprint: ""

^SBNR: 8, size: "0", issuer: "", serial number: "", subject: "", signature: "", thumbprint algorithm: "", thumbprint: ""

^SBNR: 9, size: "0", issuer: "", serial number: "", subject: "", signature: "", thumbprint algorithm: "", thumbprint: ""

^SBNR: 10, size: "0", issuer: "", serial number: "", subject: "", signature: "", thumbprint algorithm: "", thumbprint: ""

 

OK

at+cmee=2

OK

AT^SIND=IS_CERT,1

^SIND: is_cert,1

OK

AT+CMER=3,0,0,2

OK

AT^SICS=0,conType,"GPRS0"

OK

at^sics=0,apn,internetmas

OK

at^siss=1,srvType,"Transparent"

OK

AT^SISS=1,conId,0

OK

AT^SISS=1,address,"test.modemsys.com:442"

OK

AT^SISS=1,secOpt,3

OK

AT^SISO=1

OK

^SIS: 1,0,62,"Unknown internal TLS error"