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Lars Prehn lprehn at inet.tu-berlin.deHi everyone, I'm currently struggling with getting the NITB example (https://osmocom.org/projects/cellular-infrastructure/wiki/Osmocom_Network_In_The_Box) running. My problem looks as follows: I do see messages reaching the HNBGW component but whenever the HNBGW tries to reach the SGSN component I get the following error: DLSS7 <000c> osmo_ss7_hmrt.c:278 m3ua_hmdc_rx_from_l2(): dpc=188=0.23.4 not local, message is for routing DLSS7 <000c> osmo_ss7_hmrt.c:258 MTP-TRANSFER.req for DPC 188: no route! Using the VTY interface I can see that only HNBGW and MSC annouced their code points towards STP. : as-rkm-1 AS_ACTIVE 1 0.23.5 as-rkm-2 AS_ACTIVE 2 0.23.1 However, I can not see the code point 0.23.4 (SGSN). In addition, I'm also not sure if the routes are valid as they are: 7.255.7 0 as-rkm-1 ? ? ? 7.255.7 0 as-rkm-2 ? ? ? Here are my configurations (without the logging parts): ################### osmo-hnbgw.cfg ################### cs7 instance 0 # HNBGW's local point code point-code 0.23.5 # Address book entries, used below sccp-address my_msc point-code 0.23.1 sccp-address my_sgsn point-code 0.23.4 hnbgw iucs remote-addr my_msc iups remote-addr my_sgsn iuh local-ip 10.1.1.1 hnbap-allow-tmsi 1 ################### osmo-sgsn.cfg ################### sgsn gtp local-ip 10.1.1.1 ggsn 0 remote-ip 10.1.1.2 ggsn 0 gtp-version 1 !auth-policy accept-all auth-policy remote gsup remote-ip 127.0.0.1 gsup remote-port 4222 ns timer tns-block 3 timer tns-block-retries 3 timer tns-reset 3 timer tns-reset-retries 3 timer tns-test 30 timer tns-alive 3 timer tns-alive-retries 10 encapsulation udp local-ip 127.0.0.1 encapsulation udp local-port 23000 encapsulation framerelay-gre enabled 0 bssgp ################### osmo-hnbgw.cfg ################### network network country code 901 mobile network code 98 short name OsmoMSC long name OsmoMSC encryption a5 0 rrlp mode none mm info 1 msc mgw remote-ip 10.1.1.2 mgw endpoint-range 1 32 ################### osmo-stp.cfg ################### cs7 instance 0 xua rkm routing-key-allocation dynamic-permitted listen m3ua 2905 accept-asp-connections dynamic-permitted I hope someone can spot my mistake! Best regards, Lars