Comments (5)
What kind of LTE base station do you use?
Security mode reject may be caused by the eNodeB you use, if there is no matching EEA/EIA algorithms between EPC and eNodeB. Could you confirm what EEA/EIA algorithms are supported in your eNodeB?
Regards,
Brandon
from open5gs.
We found a potential problem that might be related to this issue. We'll check it and respond soon.
from open5gs.
It seems to be a problem of security capability length in security command message.
Spec(24.301. 9.9.3.36) said:
The UE security capability is a type 4 information element with a minimum length of 4 octets and a maximum length of 7 octets.
Octets 5, 6, and 7 are optional. If octet 5 is included, then also octet 6 shall be included and octet 7 may be included.
If a UE did not indicate support of any security algorithm for Gb mode, octet 7 shall not be included.
If the UE did not indicate support of any security algorithm for Iu mode and Gb mode, octets 5, 6, and 7 shall not be included.
So, we've fixed it.
Could you build a newly updated source code from the github repository?
You can find the build guide on the link
Thank you very much!
from open5gs.
💯 Great! With the latest code (Mar 3), now I can connect to nextEPC with Huawei LTE dongle E3372h and E392u-12.
Thanks a lot :)
from open5gs.
Very Good News!
Thanks!
from open5gs.
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