[srslte-users] srsenb can not connect to srsepc

[Pedro Alvarez]

Hi Dongxu,

Can you see the packet being received at the tun_srsue interface with tcpdump?
Is the GTP-U port open both at the eNB and the EPC? Can you test that
with socat or netcat?

If they are open, can you send epc.log and a packet capture between
the eNB and the EPC?

Regards,
Pedro


On Sun, Jun 3, 2018 at 1:33 PM, putaogan <15829620095 at 163.com> wrote:
> I am sorry. It is not 172.168.0.2 , it is 172.16.0.2.
>
>
>
>
>
>
> At 2018-06-02 12:09:53, "putaogan" <15829620095 at 163.com> wrote:
>
> Dear,both
> Thanks for your replys.
> I change a Cloud Server which has a ubuntu system and supports SCTP, GTP,
> and it works.
> A IP 172.16.0.1 generates in  the Cloud Server(srsepc) and another ip
> 172.168.0.2 generates in  the a computer(srsue) with a local network.
> I try to ping one ip from another and it fails.
> I don not know why.
> Could you give me any idea ?
> Thanks
>
>
> Best regards,
>
> Dongxu
>
>
>
>
>
> At 2018-06-01 18:50:03, "Paul Sutton" <paul at softwareradiosystems.com> wrote:
>
> For S1 connection, you will need to allow SCTP on port 36412 and GTP on port
> 2152.
>
> Best regards,
> Paul
>
> On 01/06/18 11:43, Kewin Rausch wrote:
>
> Hey there,
>
> Check that the firewall is correctly configured and allows communication
> such as SCTP, GTP and so on.
> Those protocols are not commonly allowed to run through public IP interfaces
> by Cloud Providers.
>
> Cheers,
> Kewin R.
>
> On Fri, Jun 1, 2018 at 12:06 PM, putaogan <15829620095 at 163.com> wrote:
>>
>> Dear，all
>> I can  succeed in running srsenb and srsepc in two computers separately in
>> a local network.
>> The ‘ping’ command shows that the delay is about 2 ms.
>> i want to run srsepc in a Cloud Server ,and run srsenb in a local computer
>> which has a public ip .
>> I tested and failed.
>> The srsenb can not connect to srsepc and there is no any response in
>> srsepc.
>> The ‘ping’ command shows that  delay is about 65 ms.
>> I am sure that the  Cloud Server and the local computer can get access
>> each other.
>> I am doubet whether the delay between srsepc and srsenb is too long and
>> affects the communication between srsenb and srsepc.
>> If you can give any suggestion，i will be grateful.
>>
>>
>> Regards
>>
>> Dongxu
>>
>>
>>
>>
>>
>>
>>
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