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Stuart Baggs stuart at bluewave.imHi, I am openBSC version 0.9.11.92-6d42 and I have compiled open-ggsn and the osmo-sgsn binary has been built when i recompiled openBSC. Now here is the problem. The GPRS indicator on the handset lights up, but no GPRS data passes. I have the following config files: ---------/etc/ggsn.conf--------- # TAG: listen # Specifies the local IP address to listen to listen 192.168.1.70 # TAG: dynip # Dynamic IP address pool. # Used for allocation of dynamic IP address when address is not given # by HLR. # If this option is not given then the net option is used as a substitute. dynip 192.168.254.0/24 # TAG: pcodns1/pcodns2 # Protocol configuration option domain name system server 1 & 2. pcodns1 208.67.222.222 pcodns2 208.67.220.220 -------------------------------- ---------/etc/ggsn.conf--------- ! ! Osmocom SGSN configuration ! ! line vty no login ! sgsn gtp local-ip 192.168.1.80 ggsn 0 remote-ip 192.168.1.70 ggsn 0 gtp-version 1 ! 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 192.168.1.60 encapsulation udp local-port 23000 encapsulation framerelay-gre enabled 0 ! bssgp ! -------------------------------- I have setup the server to have 4 virtual addresses: 192.168.1.50, 192.168.1.60, 192.168.1.70, 192.168.1.80. When I start the ggsn and do a route -n it shows thats tun0 is up with the ip range 192.168.0.0/24. I have specified it to be 192.168.1.254 via the dynip argument in the /etc/ggsn.conf file. I have setup iptables to NAT eth0 so no issues there. Thanks Stuart