Robustel GoRugged R3000 Lite Instruction Manual

Robustel GoRugged R3000
Dual SIM Industrial Cellular VPN Router
For GPRS/EDGE/UMTS/HSPA/LTE Networks
Frequently Asked Questions
Document Name: Frequently Asked Questions
Date : 2016-08-18
Status : Confidential
Doc ID : RT_FAQ_R3000_v.2.0.1
www.robustel.com

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About This Document
This document describes Frequently Asked Question about the Robustel R3000 Dual SIM Industrial Cellular VPN
Router.
Copyright© Guangzhou Robustel Technologies Co., Limited
All Rights Reserved.
Trademarks and Permissions
Robustel are trademark of Guangzhou Robustel Technologies Co. Limited.
All other trademarks and trade names mentioned in this document are the property of their respective holders.
Disclaimer
No part of this document may be reproduced in any form without the written permission of the copyright owner.
The contents of this document are subject to revision without notice due to continued progress in methodology,
design and manufacturing. Robustel shall have no liability for any error or damage of any kind resulting from the use
of this document.
Author
Jiang Xin, Technical Support Engineer
Technical Support Contact Information
Tel: [phone]
Fax: [phone]
E-mail: [e-mail]
Web: www.robustel.com

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Contents
1. Even connects to R3000’s LAN port directly, the web GUI of R3000 still inaccessible?..................................... 4
2. How can I get the router’s IP address in case of lost? ....................................................................................... 6
3. What is the default settings of console port?.................................................................................................... 7
4. How to restore the router back to factory default?........................................................................................... 7
5. How to handle PPP connection always failure?................................................................................................. 8
6. What kinds of WAN connection modes does R3000 support?........................................................................ 10
7. Why my router always reboot automatically?.................................................................................................11
8. The installation location of R3000 has 3G/4G coverage, but why my router always register to 2G network?12
9. Does R3000 support multiple IP address?....................................................................................................... 12
10. DynDNS service is enabled, but the domain name still unreachable? ............................................................13
11. SMS/Call Reboot function has been enabled, but still cannot trigger router to reboot via SMS/Call?...........13
12. About R3000’s Firewall setting, what is the priorities for the rules of “Default Filter Policy”, “Filter List” and
“MAC-Binding”? ...................................................................................................................................................... 15
13. After enable the TCP protocol and confirm the status of TCP is connected, why the data transmission is still
abnormal and would get the messy code? ............................................................................................................. 16
14. What is the limitation of Digital Input and Digital Output?............................................................................. 16
15. After enable the GPS positioning, the position is not accurate....................................................................... 17
16. Enable the NAT (port forwarding) in R3000, redirect to one host in LAN side. The external hosts could reach
the WAN port of R3000, but could not access the host on LAN side with specified port. .....................................17
17. How many kinds of VPN do R3000 support, and how many tunnels of each VPN..........................................17
18. After enable IPsec VPN ,then save and reboot the Router, but still failed to establish VPN tunnel................ 18
19. The status indicates IPsec VPN is established, but still unable to communicate with the hosts behind Router.
19
20. Having enabled GRE tunnel, but still fail to communicate between two LAN side. ........................................20
21. Having enabled PPTP server in R3000, but the client still fail to connect with R3000. ................................... 21
22. Why the R3000 fail to connect RobustLink? .................................................................................................... 21
23. Why fail to establish OpenVPN? ...................................................................................................................... 22
24. Why R3000 fail to connect with RobustVPN?.................................................................................................. 23

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25. How to download diagnose file Which is necessary before ask Robustel support team for assistance? ....... 24
26. How do I upgrade/down upgrade the firmware?............................................................................................25
27. How to add user to configuration Web?..........................................................................................................25
28. How to export and import XML configuration file?......................................................................................... 25
29. What are the correct steps to upgrade the firmware version to latest? .........................................................27
30. How to check the network connectivity of R3000?......................................................................................... 27
31. How to confirm whether the device has been registered to the 4G network?............................................... 28
32. PC is connected to the LAN port of R3000，and R3000 can ping the PC, but not vice versa. How to solve the
problem?................................................................................................................................................................. 28
33. Which firmware version is compatible with RobustLink 2.0 and RobustVPN?................................................ 28
34. There is a certain function missed on the web GUI? ....................................................................................... 29
35. Why the signal level is still low after mounting an external antenna on R3000?............................................ 29
36. The timer on the web page keeps counting without a prompt to restart when upgrading the firmware. ..... 29
37. What is the usage of USB interface on R3000? ............................................................................................... 29
38. Why can R3000 be accessed using HTTP, but cannot be accessed using telnet? ............................................ 29
39. Does R3000 support SDK? What is the specification about the ROM for programing? .................................. 30
40. What is the CPU, Flash, APROM specification of each R3000 model? ............................................................30
41. Does R3000’s SNTP could synchronize the time of LAN device? .....................................................................30
42. What is the power consumption of R3000? (Max and Min)............................................................................31
43. Which cloud platform does R3000 support? ...................................................................................................31
44. Does R3000 support to upgrade firmware/import configuration remotely? .................................................. 31
45. What is the WIFI transmission rate on R3000? What is the max transmission distance?............................... 32
46. What is the max throughput of R3000 on LAN side. ....................................................................................... 32
47. What would happen if power supply connectors’ + and – was exchanged by mistake?................................. 32

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1. Even connects to R3000’s LAN port directly, the web GUI of R3000 still inaccessible?
A:
1) Check if the power supply has been plugged in.
2) Check if the Ethernet cable connects tightly.
3) Check if the status of the LAN port’s link indicator (yellow) is normal: bright or blinking.
4) Try another Ethernet cable in case of the Ethernet cable broken.
5) Try another R3000 Ethernet port (Except R3000Lite).
6) Please enable DHCP client on the PC. Check if PC has been assigned an IP address from R3000. Then
access to R3000 via the gateway IP. See below:
7) If this unit of R3000 is not used at the first time, the DHCP server function might be disabled. In
this situation, please configure PC’s IP address manually in order to connect R3000. Or please
restore the router back to factory default by press the RST button for 60s.
8) Access to the CLI interface of R3000 via console port in order to check the IP address. Below is the
console cable wiring diagram.

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-----------R3000(Standard/Quad/Null) -------------
------------R3000(Lite) -------------

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------------Command-------------
9) Test the hardware interface status on web page in path “Administration-> Tools-> Test”. If display failure,
please copy the detail message and send to Robustel Technical support team.
(In default situation, if nothing inserts to USB, SD, SIM1&2, it will display failure.)
Note: If the problem still not able to fix, please feel free to contact Robustel Technical support team.
2. How can I get the router’s IP address in case of lost?
A:
1) Please login R3000’s CLI management via the console port. Then enter the show interface to read the
Ethernet interfaces’ information. Please refer to question 1. 8).

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2) Press the “RST” button for one minute to restore the router to factory default configuration, then login
the IP: “192.168.0.1”.
3) If above advises still can't solve your problems, Robustel technical support team will serve you
wholeheartedly.
3. What is the default settings of console port?
A:
The default settings are 115200bps, 8, N, 1. Please refer to the below picture.
4. How to restore the router back to factory default?
A:
There are 3 ways to restore the router to factory default configuration:
1) Login router’s web management, turn to page Administration->Profile, then click “Restore to Factory
Default Settings”.
2) Login router’s CLI management via Console /SSH/Telnet, and then enter load default to restore. See
below.
3) Pressing the “RST” button for 60 seconds once you power on the router until all the three LEDs at the
left side (RUN, PPP, USR) blink at the same time for 5 times.

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5. How to handle PPP connection always failure?
A:
1) Check if router can detect SIM card correctly. (Path in Web: Administration-> Tools-> Test)
2) Check if the SIM card’s data service has been activated, or deactivated because of arrear.
3) Check if the antenna has been installed properly. Normally the antenna should be installed on MAIN
connector. (MAIN connector is using to receive and send data via cellular network. AUX connector is
using to enhance the reception of Cellular data.)
4) Check if the RSSI is less than or equal to 15db (-87dbm). If yes, please exchange other high-gain antenna
or attach one more antenna on AUX connector.
5) Try other ISP SIM card. If it can dialup successful, it means the previous SIM card may get some
problem.
6) If this is a private APN SIM card, and only could be used in private network, in order to prevent PPP
connection failures caused by the ICMP detection default settings, we should change the settings (The
path in web: Configuration-> Link-management)
a) Please set the primary & secondary DNS server with the IP which is accessible for this SIM.

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b) Please disable the Reset the interface function. In order to keep the device running even though
the ICMP detection fail. If the solution a has done, please keep the reset the Interface.
7) Check if this SIM card should dialup with APN setting. Also please confirm that the APN settings are
correct or not. (The Path In Web: Configuration-> Cellular WAN-> Basic-> Cellular Settings)

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8) Check if the connection mode is Always Online. If it is in Connect On Demand mode, R3000 will not
dialup automatically until some conditions triggered.
(The Path In Web: Configuration-> Cellular WAN-> Basic-> Connection Mode)
9) Check if the router information is complete. If the serial number and module type are lost. Please feel
free to contact technical support team to solve it.
(The Path In Web: Status-> system-> Router Information)
6. What kinds of WAN connection modes does R3000 support?

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A:
R3000 supports 3 kinds of WAN connection modes: Ethernet0, Cellular and Wi-Fi. Each of them can be the
backup connection of another.
7. Why my router always reboot automatically?
A:
1) Check if the router’s power input voltage is in the normal range.
For R3000 series, it must be higher than 9 VDC. If lower, the router might reboot.
Note:
R3000 Standard/Quad/Null input voltage is 9 to 60 VDC.
R3000 Lite input voltage is 9 to 26VDC.
2) Due to the R3000 will always reset if ICMP detection fail. So please check if you have enabled “Reset
the interface” in the ICMP detection”. If yes, please make sure the WAN connection is available and
the ICMP detection server is reachable. Or you can disable the “ICMP Detection” function (leave ICMP
Detection Server null).
(The Path in Web: Configuration-> Link Management)
3) Check if the RST button has been pressed or not. Please open the R3000’s housing, then check again.
4) If above advises can't solve your problems, Robustel technical support team will serve you
wholeheartedly.

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8. The installation location of R3000 has 3G/4G coverage, but why my router always register to 2G
network?
A:
1) Check if the SIM’s 3G/4G data service have been activated.
2) If 3G/4G signal level is much lower than 2G, router will register to 2G network automatically.
3) Please confirm the antenna supports 3G/4G frequencies or change another high gain antenna.
4) Lock the router works under in certain network and even in specific band.
(The Path In Web: Configuration-> Cellular WAN-> Advanced-> Network Type)
Network Type:
Band Mode:
9. Does R3000 support multiple IP address?
A:
Yes, users can add multiple IP addresses for LAN port. The max count is 5.

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(The Path In Web: Configuration-> Ethernet-> Eth0/1-> Multiple IP address)
10. DynDNS service is enabled, but the domain name still unreachable?
A:
1) Confirm the IP address router obtained is public IP and reachable.
2) Login the relevant DDNS server, and check if the IP address has been updated.
3) Sometimes DDNS service don’t available in some area, so please confirm that in your site.
4) In some free DDNS, even it shows update successful, it still takes some time to register the IP.
11. SMS/Call Reboot function has been enabled, but still cannot trigger router to reboot via SMS/Call?
A:
1) Check if this R3000 router supports SMS/Call control. R3000-Wireline cannot support this function.
2) Confirm if SIM card supports SMS/Call service.
3) Check if the phone number in Phone Book is correct.

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4) Check if the SMS content completely comply the SMS Reboot password preset.
5) Check if the trigger commands are correct or not.
a) If the R3000 is in the Connect On Demand mode, please check if the SMS commands are correct
and phone group has been set.
Phone group: (The Path In Web: Configuration-> Phone Group)

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Connect On Demand: (The path In Web: Configuration-> Cellular WAN-> Basic-> Connection Mode)
b) Check if the SMS control is enabled. After enable the SMS control, then users can use the SMS
code to control the R3000. The users have input the password, please input the SMS code with
password.
For example, refer to above settings, the SMS command format should be 123:0001 (Password:Code).
6) Check if you have saved the configuration successfully and rebooted the device to take effect.
12. About R3000’s Firewall setting, what is the priorities for the rules of “Default Filter Policy”, “Filter List”
and “MAC-Binding”?
A:
The order of priority of these 3 rules ---- Filter List > MAC-Binding > Default Filter Policy.

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13. After enable the TCP protocol and confirm the status of TCP is connected, why the data transmission
is still abnormal and would get the messy code?
A:
1) Check if the Band rate is correct. Our device band rate is 11500.
2) Confirm that the parameters of Serial port are consistent with the connecting serial devices.
3) Confirm whether the connection line you used is correct. The following wiring diagrams are shown for
the RS232 and RS485.
RS232 Diagram RS485 Diagram
14. What is the limitation of Digital Input and Digital Output?
A:
1) Confirm the input voltage is not higher than V power in max + 5V.
2) Confirm the external relay is not higher than current 300mA, the voltage is not higher than 30V.
3) The following connection diagram is shown for Digital Input and Digital Output.
Digital Input Digital Output

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15. After enable the GPS positioning, the position is not accurate.
A:
1) Please put the GPS antenna to open ground, because buildings, trees will weaken the signal.
2) GPS positioning error within 50m is in normal range.
16. Enable the NAT (port forwarding) in R3000, redirect to one host in LAN side. The external hosts could
reach the WAN port of R3000, but could not access the host on LAN side with specified port.
A:
1) Confirm the host in LAN side has static IP address.
2) Confirm the R3000 is reachable from the host on LAN side. “Administration->Tools->Ping” the host IP
address.
3) Confirm the host behind R3000 has set the default gateway to R3000’s LAN IP.
4) Check if the host behind R3000 firewalls are turn off in order to access.
5) Check if it is port conflict caused by port occupation.
6) Check if the configuration page of NAT is configured correctly.
17. How many kinds of VPN do R3000 support, and how many tunnels of each VPN.
A: R3000 support 5 kinds VPN, the max VPN tunnels supported as below
Type
Number
IPsec VPN
6
Open VPN
Client：3 / Server:5
GRE Tunnel
3
L2TP VPN
Client：3 / Server:5
PPTP VPN
Client：3 / Server:5
L2TP over IPsec
3
GRE over IPsec
3
DMVPN
1

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18. After enable IPsec VPN ,then save and reboot the Router, but still failed to establish VPN tunnel.
A:
1) Confirm the remote server address is reachable. Ping server address on R3000.
(The Path in Web: Administration-> Tools-> Ping)
2) If your R3000 works behind the router of a network area, please confirm you have already ticked the
NAT-Traversal.
3) Ensure the VPN parameters between R3000 and remote server are matched.
4) Check if port UDP 4500 or UDP 500 were blocked by the network/firewall. These two ports are used for
IKE Phase I negotiation.
5) Check if the R3000’s clock is synchronized with server

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19. The status indicates IPsec VPN is established, but still unable to communicate with the hosts behind
Router.
A:
1) IPsec VPN could solve the LAN to LAN communication. After established IPsec VPN, please confirm both
ends matched VPN interested flow. (Remote Subnet)
2) Confirm the ends in LAN side have the default gateway to each Router’s LAN IP address.
Note:
Interested flow is that we define in Local Subnet and remote Subnet option. Only IP packets with matched
Source IP address and destination IP address would go through VPN tunnel. E.g source IP address of
192.168.0.0/24 To 172.16.0.0/16 would forward to VPN tunnel.