USR IOT USR-G808 User manual

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USR-G808 User Manual
File version: V1.0.4.1

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Content
1. Overview.................................................................................................................................................................4
1.1. Brief introduction..................................................................................................................................... 4
1.2. Product feature......................................................................................................................................... 4
1.3. Hardware introduction............................................................................................................................ 5
1.3.1.Hardware dimension..................................................................................................................... 5
2. Product Functions...............................................................................................................................................6
2.1.Application procedure............................................................................................................................. 6
2.1.1.APN.................................................................................................................................................... 7
2.2.Common functions................................................................................................................................... 7
2.2.1.DDNS................................................................................................................................................. 7
2.2.2.WIFIdog.............................................................................................................................................8
2.2.3.RemoteManager............................................................................................................................. 8
2.2.3.1.Remote Firmware Upgrade..............................................................................................8
2.2.3.2.Remote Monitor...................................................................................................................9
2.2.4.LAN interface...................................................................................................................................9
2.2.4.1.DHCP....................................................................................................................................11
2.2.5.WAN interface............................................................................................................................... 11
2.2.6.WIFI interface................................................................................................................................ 12
2.2.7.Dual 4G interface......................................................................................................................... 13
2.2.8.Load balancing.............................................................................................................................14
2.2.9.VPN Client......................................................................................................................................14
2.2.9.1.PPTP Client........................................................................................................................ 14
2.2.9.2.L2TP Client.........................................................................................................................16
2.2.9.3.IPSEC...................................................................................................................................16
2.2.9.4.OPENVPN Client............................................................................................................... 17
2.2.9.5.GRE...................................................................................................................................... 17
2.2.9.6.SSTP Client........................................................................................................................ 17
2.2.10.Static Routes.............................................................................................................................. 18
2.2.11.Firewall......................................................................................................................................... 18
2.2.11.1.Port Forwards..................................................................................................................18
2.2.11.2.Restricting access......................................................................................................... 19
2.2.11.3.Rate-limiting.....................................................................................................................19
2.3.Basic Functions.......................................................................................................................................20
2.3.1.Network Diagnosis...................................................................................................................... 20
2.3.2.Host Name and Time Zone........................................................................................................20
2.3.3.Web Server Password................................................................................................................ 21
2.3.4.Restore default settings.............................................................................................................21
2.3.5.Upgrade Firmware Version....................................................................................................... 21
2.3.6.Reset................................................................................................................................................22
3. Web Server.......................................................................................................................................................... 23
4. Contact us........................................................................................................................................................... 24

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5. Disclaimer............................................................................................................................................................24
6. Update History....................................................................................................................................................24

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1. Overview
Product link:
http://www.usriot.com/p/industrial-4g-dual-sim-dual-lte-modules-wireless-router/
Figure 1 Download Page
If you have any question, please submit it back to customer center: http://h.usriot.com
1.1. Brief introduction
USR-G808 supports WAN, LAN, WLAN and dual 4G interface. User can access to 4G network by WLAN
interface or Ethernet interface.
1.2. Product feature
Support 4 LAN interface, 1 WAN interface. All Ethernet interface support 10/100Mbps
Support 1 command serial port
Support 1 WLAN(802.11b/g/n)
Support serial port, ssh, telnet and Web Server to manage and configure
Support LED to show work status
Support Reload button to restore default settings by hardware way
Support VPN Client(PPTP, L2TP, IPSEC, OPENVPN, GRE, SSTP) and VPN encryption function
Support load balancing
Support firewall, NAT, DMZ host
Support QOS, flow service and limiting speed according to interface

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Support DDNS and port forwarding
Support WIFIDOG, this function need user custom according to own needs
Support static routes, PPPOE, DHCP/static IP
Support NTP, internal RTC
Support watchdog to guarantee the system stability
1.3. Hardware introduction
1.3.1.Hardware dimension
G808 dimension is 160*121*45 mm.
Figure 2 Hardware dimension

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2. Product Functions
This chapter introduces the functions of USR-G808, as the following diagram shown, you can get an overall
knowledge of it.
Figure 3 Product function
2.1.Application procedure
1.Power off the G808 and insert SIM card.
2.Connect WIFI antenna and 4G antenna.
3.Power on the G808 by 12V power supply.
Application diagram as follow, user can access internet through LAN interface or WLAN interface of G808:
Figure 4 Application diagram

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2.1.1.APN
When user want to configure and use G808, the first and most important step is to configure APN settings.
Different operator have different APN(access point name). If user uses the SIM card from the operator, must
know the APN. User can ask SIM card operator for APN information. There are three main parameters about
APN. Those are APN address, username and password. Sometimes only configuring APN address is enough.
APN configuration by Web Server as follow:
Figure 5 APN configuration
APNAddress: Default is AutoCheck, user can choose ‘--custom--’ and write correct SIM card APN address.
And user can keep AuthType and Check Registered (Seconds) as default settings.
After user configuring successfully, user can click ‘SIM Info’ above to check SIM card 1 and SIM card 2
information.
2.2.Common functions
2.2.1.DDNS
There are two situations to adopt DDNS function:
G808 supports, user can choose one service provider on ‘Service’.
G808 doesn’t support, user need choose ‘--custom--’ on ‘Service’ and write correct service provider.

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Figure 6 DDNS configuration
User should choose ‘Enable’ on above figure to enable DDNS function firstly and also need to reset G808 to
make new parameters take effect. If user wants to enable this function, the network that G808 belongs to must
be distributed independent public network IP.
2.2.2.WIFIdog
User can enter Web Server and configure WIFIdog parameters as follow:
Figure 7 WIFIdog configuration
User need choose ‘Enable’ and ‘daemon enable’ to use WIFIdog function. After configuring and clicking ‘Save‘,
user need reset G808 to make changing take effect.
2.2.3.RemoteManager
2.2.3.1.Remote Firmware Upgrade
User can configure this function by Web Server as follow:

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Figure 8 Remote Firmware Upgrade
2.2.3.2.Remote Monitor
This function can realize reporting G808 information(Such as flow, firmware version, RSSI, IMEI) to Remote
Monitor server and Remoter Monitor server can also send commands to control G808. User can configure this
function by Web Server as follow:
Figure 9 Remote Monitor
2.2.4.LAN interface
G808 supports four wired LAN interfaces(LAN1~LAN4). WIFI interface also belongs to LAN interface(wireless
LAN interface).
Default settings: Static IP (IP address: 192.168.1.1); Subnet mask: 255.255.255.0; Enable DHCP Server
function. LAN interface functional diagram as follow:

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Figure 10 LAN interface functional diagram
User can configure LAN interface as follows:
Figure 11 LAN interface configuration

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2.2.4.1.DHCP
DHCP Server default range of distribution is from 192.168.1.100 to 192.168.1.250 and default address lease
time is 12 hours. Address range and lease time can be changed.
After entering Web Server LAN interface configuration web page, user can find ‘DHCP Server’ on Web Server
as follow:
Figure 12 DHCP Server configuration
2.2.5.WAN interface
G808 supports one wired WAN interface. WAN interface supports DHCP Client, static IP and PPPOE mode.
And default setting is DHCP Client mode. User can configure WAN interface as follows:

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Figure 13 WAN interface configuration
2.2.6.WIFI interface
G808 is a AP actually and supports other STA devices connecting to. G808 supports at most 24 STA devices to
connect and about 150 meters WIFI coverage area in open field. WIFI interface functional diagram as follow:
Figure 14 WIFI interface functional diagram
Default settings of WIFI interface as follows:
Parameters
Default setting
SSID
USR-G808-XXXX(XXXX is MAC address)
Password
www.usr.cn
Channel
Auto
Bandwidth
40MHz
Encryption method
WPA2-PSK
Figure 15 WIFI interface default settings

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User can configure WIFI interface as follow:
Figure 16 WIFI interface configuration
User can change Radio on/off to off to close WIFI interface.
2.2.7.Dual 4G interface
G808 supports dual 4G interfaces to access internet. 4G interface functional diagram as follow:
Figure 17 4G interface functional diagram

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User can configure 4G interfaces by Web Server as follow:
Figure 18 4G interface configuration
2.2.8.Load balancing
Load balancing function will configure dual 4G interfaces to realize dual 4G interfaces load balancing. User can
configure this function by Web Server as follow:
Figure 19 Load balancing configuration
2.2.9.VPN Client
VPN(Virtual Private Network) has Client and Server two parts and protocols includes PPTP, L2TP, ipsec,
openvpn, gre, sstp.
2.2.9.1.PPTP Client
PPTP is point-to-point tunnel protocol which uses one TCP connection(port 1723) to maintain tunnel. PPTP
protocol will use GRE technology to encapsulate data into PPP data and transmit through tunnel, then encrypt
or compress the PPP data.

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If PPTP Server has been established, user can configure PPTP Client by Web Server as follows:
Figure 20 PPTP Client configuration
User can choose only MSChapV2 encryption in ‘Advanced Settings’ according to whether PPTP Server only
supports MPPE encryption. And in Firewall Settings, user can choose WAN or LAN according to dialing way.

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2.2.9.2.L2TP Client
L2TP is Layer 2 Tunneling Protocol which is similar to PPTP protocol. G808 supports multiple authentication
methods such as tunnel password authentication and CHAP, and supports MPPE and L2TP OVER IPSEC
encryption way.
User can add a new interface with L2TP protocol by 2.2.9.1.PPTP Client way and configure by Web Server as
follow:
Figure 21 L2TP Client configuration
2.2.9.3.IPSEC
IPSEC protocol isn’t a separate protocol. It gives a complete architecture of network data security on the IP
layer and application layer which includes Network Authentication Protocol AH, ESP, IKE and some algorithms
for network authentication/encryption. AH protocol and ESP protocol are used to provide security service, IKE
protocol is used to key exchange.
User can configure IPSEC by Web Server as follow:
Figure 22 IPSEC configuration

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2.2.9.4.OPENVPN Client
OPENVPN is based on Openssl library. It supports bidirectional authentication based on certificate, that’s to
say Client needs to certificate Server and Server needs to certificate Client.
User can add a OPENVPN interface and configure it by Web Server as follow. Protocol can choose TUN(route
mode) or TAP(bridge mode).
Figure 23 OPENVPN Client configuration
2.2.9.5.GRE
GRE(Generic Routing Encapsulation) protocol is the third layer tunnel protocol of VPN which adopts Tunnel
technology. It can encapsulate some network layer protocols data(such as IP, IPX) to transmit on another
network layer protocol. User can add a GRE interface and configure by Web Server as follow:
Figure 24 GRE configuration
2.2.9.6.SSTP Client
SSTP(secure socket tunnel protocol) is protocol which is applied for internet. It can create a VPN tunnel which
can transmit on HTTPS. STTP can only used to remote access and doesn’t support site-to- site VPN tunnel.
User can add a SSTP interface and configure by Web Server as follow:

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Figure 25 SSTP Client configuration
2.2.10.Static Routes
This function can realize communication between two different network segment. For example, there are two
G808(G808a and G808b) and they have parameters as follows:
G808a: WAN interface IP is 192.168.4.47, LAN interface IP is 192.168.1.1.
G808b: WAN interface IP is 192.168.4.11, LAN interface IP is 192.168.2.1.
If user want to realize PC connected to G808a’s LAN interface can access to PC connected G808b’s LAN
interface, user can add a static route and configure it as follow:
Figure 26 Static routes configuration
2.2.11.Firewall
2.2.11.1.Port Forwards
This function can allow PC from internet access PC or service in private LAN. User can configure this function
by Web Server as follow:

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Figure 27 Port forwards configuration
2.2.11.2.Restricting access
This function can set specified domain name into black list or white list. User can configure this function by
Web Server as follow:
Figure 28 Restricting access configuration
2.2.11.3.Rate-limiting
This function can do network speed control for specified IP and MAC. User can configure this function by Web
Server as follow:
Figure 29 Rate-limiting configuration

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2.3.Basic Functions
2.3.1.Network Diagnosis
User can use network diagnosis function by Web Server as follow:
Figure 30 Network diagnosis configuration
Ping: User can do PING test to a specific address in G808.
Traceroute: Can acquire routing path to visit a specific address.
Nslookup: Can analyse DNS into IP address
2.3.2.Host Name and Time Zone
G808 default host name is USR-G808 and default Time Zone is Beijing time zone.
User can configure host name and Time Zone by Web Server as follow:
Figure 31 Host name and Time Zone configuration