[Openlte-discuss] Cannot access internet from UE

[V P. <lc...@ou...>]

Hi all.


I have managed to install openLTE. The UE (smart phone) can successfully connect to the eNB, however it cannot reach the Internet.


Looking at the LTE_fdd_enodeb_ip.pcap file, there are DNS requests sent from the UE, but no reply is returned back. I guess this is due to the traffic from openlte GW (tun_openlte) is not forwarded or bridged to the host computers network interface (enp0s25) with Internet connectivity. Can anyone who managed to connect UE to the Internet through openLTE please help.


Any reply is greatly appreciated.


Regards


V. Pham



Settings for my system is as follows:


My system is as follows:

Ubuntu 16.04

Latest version of openLTE.

SDR: USRP B210

IP-address of host: 192.168.1.8

IP-address of tun-openlte: 10.0.0.1




iptables:


Chain INPUT (policy ACCEPT 35510 packets, 28M bytes)
 pkts bytes target     prot opt in     out     source               destination

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
    0     0 ACCEPT     all  --  tun_openlte enp0s25  0.0.0.0/0            0.0.0.0/0            ctstate NEW
    0     0 ACCEPT     all  --  *      *       0.0.0.0/0            0.0.0.0/0            ctstate RELATED,ESTABLISHED

Chain OUTPUT (policy ACCEPT 35768 packets, 5413K bytes)
 pkts bytes target     prot opt in     out     source               destination



routing table:

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
default         192.168.1.1     0.0.0.0         UG    100    0        0 enp0s25
link-local      *               255.255.0.0     U     1000   0        0 enp0s25
192.168.1.0     *               255.255.255.0   U     100    0        0 enp0s25