# Apn connect only gives ipv6-addr **URL:** \ **Category:** Legato Application Framework\ **Created:** [November 29, 2016, 9:05am UTC](https://forum.legato.io/t/apn-connect-only-gives-ipv6-addr/2271 "2016-11-29T09:05:28Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![mouse365](https://avatars.discourse-cdn.com/v4/letter/m/bbe5ce/32.png) [@mouse365](https://forum.legato.io/u/mouse365)\ **Post date:** [November 29, 2016, 9:05am UTC](https://forum.legato.io/t/apn-connect-only-gives-ipv6-addr/2271/1 "2016-11-29T09:05:28Z")
I have a WP8548 module. It works great, then at an unknown stage its cm connect only connects as an ipv6. When running ifconfig it shows rmnet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet6 addr: fe80::8610:5c:da7f:a8e6/64 Scope:Link UP RUNNING MTU:1430 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:678 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:138252 (135.0 KiB) The setup on cm data info > Index: 1 > APN: csdtecmo.co.za > PDP Type: IPV4 > Connected: yes > Auth type: PAP > User name: tecmo > Password: tecmo I know the IP, and can ping it from another pc, so the device did connect. And when I send the command AT+CGPADDR via /dev/ttyAT, I get the correct IPv4 Address : AT+CGPADDR > +CGPADDR: 1,10.10.1.2 > OK Running legato version 16.07.0\_cd4985660a55cc9a6f9a2ed28bcc757e\_modified, as from the FW\_Updates. I get the same result, when starting the connection via an application, or via SSH. More info: ATI > Legato Ver: 16.07.0\_cd4985660a55cc9a6f9a2ed28bcc757e\_modified > Yocto Ver: SWI9X15Y\_07.11.09.00 2016-08-11\_20:51:24 > OS Ver: Linux version 3.14.29ltsi-c14b887744\_0c284d02b3 (gsmbuild@CARMD-EV-FRMWR1) (gcc version 4.9.1 (GCC) ) #2 PREEMPT Thu Aug 11 20:50:27 PDT 2016 > LK Ver: 1.3.0\_a50272dbb2 > RootFS Ver: SWI9X15Y\_07.11.09.00 2016-08-11\_20:51:24 > UserFS Ver: unknown > MCU Ver: 000.000 ATI8 > Manufacturer: Sierra Wireless, Incorporated > Model: WP8548 > Revision: SWI9X15Y\_07.11.11.00 r33161 CARMD-EV-FRMWR1 2016/09/20 16:36:44 > IMEI: 359377060030318 > IMEI SV: 42 > FSN: LL620100140906 > +GCAP: +CGSM,+DS,+ES Any help would be greatly appreciated. Regards ---
**Author:** ![pinkesh](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/pinkesh/32/221_2.png) [@pinkesh](https://forum.legato.io/u/pinkesh)\ **Post date:** [December 18, 2017, 9:30am UTC](https://forum.legato.io/t/apn-connect-only-gives-ipv6-addr/2271/3 "2017-12-18T09:30:11Z")
Hello, The issue would be from Legato linux distribution for 16.07.0. For latest legato linux distribution for 17.11.0.rc3 the IPV4 address has been seen properly. See below command responses in the latest legato image: root@swi-mdm9x15:~# cm info Device: WP8548 IMEI: 359377060033064 IMEISV: 2E FSN: LL647500381110 Firmware Version: SWI9X15Y\_07.12.13.00 e2a81d2 jenkins 2017/11/23 05:53:26 Bootloader Version: SWI9X15Y\_07.12.13.00 e2a81d2 jenkins 2017/11/23 05:45:22 MCU Version: 001.005 PRI Part Number (PN): 9906351 PRI Revision: 01.00 Carrier PRI Name: GENERIC Carrier PRI Revision: 001.026\_000 SKU: 1103113 Last Reset Cause: Unknown Resets Count: Expected: 0 Unexpected: 0 root@swi-mdm9x15:~# legato version 17.11.0.rc3-15-g05d574c\_7075984fa821a5cb319d0267f77d36a6\_modified ifconfig rmnet0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00 inet addr:100.64.200.79 Mask:255.255.255.224 inet6 addr: fe80::b72b:bc27:ede6:1563/64 Scope:Link UP RUNNING MTU:1430 Metric:1 RX packets:17 errors:0 dropped:0 overruns:0 frame:0 TX packets:27 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2323 (2.2 KiB) TX bytes:3592 (3.5 KiB) root@swi-mdm9x15:~# cm data info Index: 1 APN: "apn PDP Type: IPV4 Connected: yes Interface: rmnet0 Family: inet IP: 100.64.200.79 Gateway: 100.64.200.80 Dns1: 203.145.160.5 Dns2: 59.144.144.46 root@swi-mdm9x15:~# microcom -E /dev/ttyAT AT+CGPADDR +CGPADDR: 1,100.64.200.79 +CGPADDR: 2,0.0.0.0 +CGPADDR: 3,0.0.0.0 +CGPADDR: 4,0.0.0.0 +CGPADDR: 5,0.0.0.0 +CGPADDR: 6,0.0.0.0 +CGPADDR: 7,0.0.0.0 +CGPADDR: 8,0.0.0.0 +CGPADDR: 9,0.0.0.0 +CGPADDR: 10,0.0.0.0 +CGPADDR: 11,0.0.0.0 +CGPADDR: 12,0.0.0.0 +CGPADDR: 13,0.0.0.0 +CGPADDR: 14,0.0.0.0 +CGPADDR: 15,0.0.0.0 +CGPADDR: 16,0.0.0.0 OK Thanks, Pinkesh Shah