[srslte-users] EPC failed to start after changing epc.conf ip address

[Pedro Alvarez]

Can you send the logs?
What is the exact command you are running? What is the Ip address of the
MME?

On Sat, 14 Dec 2019, 14:25 魏宏修, <m1075509 at mail.nuk.edu.tw> wrote:

> Hi all,
>
> Recently l've been trying to use srsEPC with own mme_bind_addr and gtpu
> _bind_addr.
> But I haven't been able to make it work at all.
>
> like this,
> eNBs and srsEPC on separate machines
> <http://docs.srslte.com/en/latest/srsepc/source/2_epc_getstarted.html#enbs-and-srsepc-on-separate-machines>
>
> By default, srsEPC is configured to run with srsENB on the same machine.
> When running srsEPC with an eNB on a separate machine, all that is
> necessary to configure is the mme_bind_addr and the gtpu_bind_addr.
>
> The MME bind address will specify where the MME will listen for eNB S1AP
> connections. The GTP-U bind address should be the same as the MME bind
> address, unless you want to run the user-plane on a different sub-net then
> the S1AP connection.
>
> So if you want to listen to eNB on the interface with IP *10.0.1.10*, you
> can do:
>
> sudo srsepc --mme.mme_bind_addr 10.0.1.10 --spgw.gtpu_bind_addr 10.0.1.10
>
> The first time I use the original mme_bind_addr(127.0.1.100) and gtpu
> _bind_addr ip address( 127.0.1.100) :
>
> Built in Release mode using commit 8c16bca on branch master.
>
>
> ---  Software Radio Systems EPC  ---
>
> Reading configuration file epc.conf.example...
> HSS Initialized.
> MME S11 Initialized
> MME GTP-C Initialized
> MME Initialized. MCC: 0xf208, MNC: 0xff93
> SPGW GTP-U Initialized.
> SPGW S11 Initialized.
> SP-GW Initialized.
>
> But when I started EPC after changing the IP address, I encountered some
> problems :
>
> Built in Release mode using commit 8c16bca on branch master.
>
>
> ---  Software Radio Systems EPC  ---
>
> Reading configuration file epc.conf.example...
> HSS Initialized.
> Error binding SCTP socket
> MME S11 Initialized
> MME GTP-C Initialized
> MME Initialized. MCC: 0xf208, MNC: 0xff93
> Could not initialize the S1-U interface.
> Could not initialize the SPGW's GTP-U.
> Error initializing SP-GW
>
> How can I solve this problem?
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>
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