Configuring a GSM (3G) modem on a GW2040 Series Router
Issue 1.5
Date 10 May 2012
Table of contents
Copyright 2011 Virtual Access (Irl) Ltd. This material is protected by copyright. No part of this material may be reproduced, distributed, or altered without the written consent of Virtual Access. All rights reserved. Third party trademarks are the property of the third parties. Configuring a GSM (3G) modem on a GW2040 Series Router © Virtual Access Ltd. Issue: 1.5 Page 2 of 34
1 About this document ............................................................................... 3
1.1 Scope ..................................................................................................... 3
1.2 Readership ............................................................................................. 3
1.3 More information .................................................................................... 3
1.3.1 Assigned interface number ...................................................................... 3
1.3.2 References to GSM (3G) .......................................................................... 3
1.4 Terminology ........................................................................................... 3
1.5 Prerequisites .......................................................................................... 3
1.5.1 Inserting the SIM card ............................................................................ 3
1.5.2 Internet Service Provider details ............................................................... 4
2 Introduction ............................................................................................ 5
2.1 3G overview ........................................................................................... 5
2.2 Typical uses of the GSM (3G) modem ..................................................... 5
2.3 Types of data bearers that the GSM (3G) modem supports .................... 6
2.3.1 GPRS .................................................................................................... 6
2.3.2 HSDPA .................................................................................................. 6
2.3.3 HSUPA .................................................................................................. 6
2.3.4 UMTS .................................................................................................... 6
2.3.5 Edge ..................................................................................................... 6
3 Configuring the GW2040 series ............................................................... 7
4 Setting up the GSM (3G) modem for a primary WAN link ........................ 8
4.1 PPP layer structure ................................................................................ 8
4.2 Configuring the GW2040 series to use the GSM (3G) modem interface .. 8
4.2.1 Configure the GSM (3G) modem and APN .................................................. 9
4.2.2 Configure the IP default route .................................................................10
4.2.3 Configure the PPP interface .....................................................................12
4.2.4 Configure the IP interface .......................................................................13
4.2.5 Configure address translation ..................................................................15
4.2.6 Configure IPCP options ...........................................................................15
4.2.7 Select asynchronous PPP operation ..........................................................19
4.2.8 Configure 3G Username and Password .....................................................20
4.2.9 Set dialling options for GSM only .............................................................24
4.2.10 Configure the modem interface ...............................................................25
4.2.11 Save the configuration ...........................................................................26
4.2.12 Reload the configuration .........................................................................27
5 Performing GSM (3G) monitoring and diagnostics ................................. 28
5.1 View the connection monitor ................................................................ 28
5.1.1 Call history ...........................................................................................28
5.1.2 Active data connections ..........................................................................30
5.1.3 Trace analyzer ......................................................................................30
5.1.4 Modem statistics and signal quality ..........................................................33
1: About this document
Configuring a GSM (3G) modem on a GW2040 Series Router © Virtual Access Ltd. Issue: 1.5 Page 3 of 34
1 About this document
1.1 Scope
This configuration guide explains how to set up and configure a primary link using the
GSM (3G) modem on a GW2040 Series router.
1.2 Readership
This document is for engineers who have previous experience configuring and managing
GW Series routers.
1.3 More information
1.3.1 Assigned interface number
Throughout this guide we have used ppp-2 as the assigned interface number. You can
configure any PPP interface number for connections. For example, ppp-1 could be
substituted for each ppp-2 task covered in this document.
1.3.2 References to GSM (3G)
The GW2040 web interface refers to GSM, not 3G, so screen grabs of the web interface
will vary.
1.4 Terminology
Abbreviation Description
APN Access Point Name
GSM Global System for Mobile communications
HSDPA High-Speed Downlink Packet Access
UMTS Universal Mobile Telecommunications System EDGE Enhanced Data rates for GSM Evolution
1.5 Prerequisites
1.5.1 Inserting the SIM card
Ensure the unit is powered off.
Hold the SIM card with the chip side facing down and the cut corner top left.
Gently push the SIM card into SIM slot 1 until it clicks in.
To remove the SIM card, gently push the SIM card. The card will click out.
WARNING
The SIM card MUST be inserted into the SMG before the unit is powered on.
1: About this document
Configuring a GSM (3G) modem on a GW2040 Series Router © Virtual Access Ltd. Issue: 1.5 Page 4 of 34
Do not insert or remove the SIM card after the unit has been powered on.
1.5.2 Internet Service Provider details
Before you configure the GSM (3G) modem, check with your Internet Service Provider for
the following information:
Number
Username and password
PIN
PUK, and
Access Point Name
2: Introduction
Configuring a GSM (3G) modem on a GW2040 Series Router © Virtual Access Ltd. Issue: 1.5 Page 5 of 34
2 Introduction
2.1 3G overview
3G is the third generation of mobile phone standards and technology. It is based on the
International Telecommunication Union (ITU) family of standards under the International
Mobile Telecommunications programme, IMT-2000.
3G technologies enable network operators to offer users a wider range of more advanced
services while achieving greater network capacity through improved spectral efficiency.
Services include wide-area wireless voice telephony, video calls, and broadband wireless
data, all in a mobile environment.
The GW2040 Series router contains a GSM (Global System for Mobile communications)
3G wireless modem. The modem in connection with a SIM card establishes a WAN
connection to the Internet.
The GW2040 Series router supports a maximum download speed of 7.2 Mbps and a
maximum upload speed of 384 kbps.
2.2 Typical uses of the GSM (3G) modem
You can use the GSM (3G) modem on the GW2040 Series in two ways.
You can create a primary WAN link over the GSM (3G) modem.
Figure 1: A primary WAN link over the 3G modem
You can use the GSM (3G) modem as a backup WAN link. If the primary interface
link fails, the GW2040 Series router uses its GSM (3G) modem to automatically
route traffic across the Internet via its alternative interface. This set up is not
covered in this document. For further information contact Virtual Access.
2: Introduction
Configuring a GSM (3G) modem on a GW2040 Series Router © Virtual Access Ltd. Issue: 1.5 Page 6 of 34
Figure 2: A primary link using the 3G modem on the GW2040 series router
2.3 Types of data bearers that the GSM (3G) modem supports
Data bearers are frame protocols that transport data streams. The GSM (3G) modem
supports GPRS, HSDPA, and CSD.
2.3.1 GPRS
GPRS (General Packet Radio Service) uses packet-switched technology to transmit small
bursts of data. The maximum data rate available to the 3G modem depends on
provisioning by the network operator.
2.3.2 HSDPA
HSDPA (High-Speed Downlink Packet Access) uses circuit-switched technology to
transmit data at speeds of up to 7.2Mbps.
2.3.3 HSUPA
HSUPA (High-Speed Uplink Packet Access) is a 3G mobile telephony protocol with up link
speeds of 5.76Mbps.
2.3.4 UMTS
UMTS (Universal Mobile Telecommunications System) is a 3rd generation technology
providing higher transfer rates.
2.3.5 Edge
Edge uses the same frequencies as GPRS but offers better speeds. It is used when the
signal strength for 3G is not sufficient.
3: Configuring the
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3 Configuring the GW2040 series
The GW2040 Series contains an internal web server that is used to configure the router.
Before you can access the internal web server and start the configuration, you must
ensure that your PC has the correct networking set up.
When your GW2040 Series router is correctly connected to your PC, type fast.start into
the URL line of your browser to display the start page. Alternatively, you can type in the
IP address of the gateway.
Figure 3: The GW2040 series web interface start page
If a login page appears type in the login password you received from your administrator.
If you have not received a password, contact the Virtual Access Support team.
Access the Fast Start Wizard by clicking the Fast.Start icon on the start page of the
embedded web.
The Fast Start Wizard will guide you through a series of forms that you must complete to
configure your GW2040 Series router.
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4 Setting up the GSM (3G) modem for a primary WAN link
4.1 PPP layer structure
Figure 4 shows the PPP layer structure required to configure a primary WAN link.
Figure 4: PPP layer structure
4.2 Configuring the GW2040 series to use the GSM (3G) modem interface
To configure the GW2040 Series to use the GSM (3G) modem interface, follow the steps
in sections 4.2.1 to 4.2.10. You do not have to save each configuration until you have
updated all your settings. When you have completed all your configuration changes, you
must save the configuration as described in section 4.2.11.
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4.2.1 Configure the GSM (3G) modem and APN
Set up the GSM (3G) modem for a primary WAN link in the Expert View of the Advanced
section of the web of the GW2040 Series router.
On the Start page, click Advanced.
In the Advanced menu, click Expert View.
In the Expert View menu, select interfaces -> modem-0 -> gsm. The Modem
Interface GSM page appears. Click Advanced to view advanced options.
Figure 5: The GSM on modem page
Set Access Point Name, PIN, PIN2, PUK, and PUK2 according to your ISP settings.
Field name Description Command line
APN (Access Point Name)
For GPRS operation only. An access point name is given by a network operator for connection into the GPRS network. Enter your service provider’s
Access Point Name (APN).
Set Modem Interface Gsm
Apn
PIN <SIM PIN number>. This may or may not be required, depending on SIM card type. Check with your service provider.
Set Modem Interface Gsm
Pin
PIN2 <SIM PIN2 number>. This may or
may not be required, depending on SIM card type. Check with your service provider.
Set Modem Interface Gsm
Pin2
PUK <SIM personal unlock key>. This may or may not be required, depending
on SIM card type. Check with your service provider.
Set Modem Interface Gsm
Puk
PUK2 <SIM personal unlock key 2>. This Set Modem Interface Gsm
Puk2
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may or may not be required, depending
on SIM card type. Check with your service provider.
Radio Access Technology Mode
2G=GSM, 3G=UTMS, Auto sets to 3G. If there is no 3G access, radio access automatically defaults to 2G.
Set Radio Access to auto.
Set Modem Interface Gsm
Rat
Table 1: GSM on modem-0 fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears. You do not have to save
your configurations until you have updated all your settings.
4.2.2 Configure the IP default route
In the Expert View menu, select system -> ip -> ip routing -> default routes list.
The IP Default Routes List page appears.
Figure 6: The IP default routes list page
In the Operation column, click add in the Index 1 row. The IP Default Routes Entry page
appears.
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Figure 7: The IP default routes entry page
Field name Description Command line
Configured Enables or disables the default route.
Set Configured to Yes
Set Ip Route Default
Configured
Route Type Indicates whether the route type is over a numbered or unnumbered link. A numbered link is a link that
has been assigned an IP address.
Set Route Type to unnumbered.
Ip Route Default Indexed
Numbered
Numbered Route Next Hop IP
If you have set Route Type to numbered, enter the IP address, in dotted-decimal notation, of an adjacent router to which to send
traffic when a route to a destination is not known by the local device.
Ip Route Default Indexed
Next Hop Ip
Unnumbered Route Next Hop Interface
If you have set Route Type to unnumbered, select the interface
that provides a connection to the
next hop router. Set the Next Hop Interface to one of the options from the drop down list.
Ip Route Default Indexed
Next Hop Interface
Metric Defines the RIP metric for the route.
Minimum
Value
1
Default 1
Ip Route Default Indexed
Metric
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Value
Maximum
Value
15
Units Unspecified
Last Resort Specifies that the route is to be used
only if all others are down. Usually used with a route that is slow or expensive, or both.
Ip Route Default Indexed
Last Resort
Table 2: The IP default route entry page fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears.
4.2.3 Configure the PPP interface
The GSM (3G) modem uses the modem-0 interface, so you must configure ppp-2 to send
and receive data using the modem-0 interface.
In the Expert View menu, select interfaces -> ppp-2 -> wan interface. The PPP WAN
Interface page appears.
Figure 8: The WAN interface page
On the PPP WAN Interface on ppp-2 page, select Modem -0 from the Wan Interface
drop-down list.
Field name Description Command line
WAN Interface Defines the connection type on the PPP WAN interface.
Ppp Interface Wan
Interface
Table 3: The PPP WAN interface field, its description and command line
Click Update. The Configuration Update Result page appears.
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4.2.4 Configure the IP interface
To configure the IP interface, in the Expert View menu, select interfaces -> ppp-2 ->
ip -> ip. The IP Interface page appears.
Figure 9: The IP interface on ppp-2 page
Field name Description Command line
Enabled Enables or disables IP operation on the selected interface.
Set to yes.
Set Ip Interface Enabled
Type Select one of the following options to define the point to point link associated with the PPP interface as
operating in unnumbered IP mode or numbered IP mode.
numbered Configures an IP point to point link for numbered
operation. Default.
unnumbered Configures an IP point to point link for numberless or unnumbered operation.
Note: when an interface is defined as
unnumbered, the IP Address field for the interfaces(s) must be set to 0.0.0.0.
Set to unnumbered.
Set Ip Interface
Unnumbered Link Enabled
IP Address Enter the IP address, in dotted decimal notation, to be assigned to the selected interface.
This field and the Mask provide the
Set Ip Interface Address
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network and host identification.
This configuration change does not take effect until the device reboots. Note: When the interface is defined as
unnumbered, this field must be set to 0.0.0.0
Set IP Address to 0.0.0.0.
Mask Enter the subnet mask, in dotted decimal notation, to be assigned to
the selected interface. The subnet mask is used to determine the network and host ID from the IP address and is based on the network class.
Set Mask to 255. 255. 255. 0.
Set Ip Interface Address
Mask
Remote IP
Address
Enter the IP address of the peer at the
opposite end of the point to point link associated with the selected interface. The IP router process establishes a host route to the end point of each point to point link based on the
remote address.
Remote IP Address to 0.0.0.0.
Set Ip Interface Remote
Address
Remote Mask Specify the subnetwork mask, in dotted decimal notation, to be associated with the remote end point
of an unnumbered IP link.
Remote Mask to 255.255.255.0
Set Ip Interface Remote
Mask
MTU Enter the size, in bytes, of the largest IP datagram that can be sent by the selected interface. The MTU value
includes the data link header, IP
header, and IP data field.
Minimum Value
64
Default
Value
1500
Maximum Value
1500
Units Bytes
Set MTU to 1500
Set Ip Interface Mtu
BOOTP enabled This option is used to enable or disable BOOTP on the selected interface.
yes Enables BOOTP
no Disables BOOTP
Set BOOT enabled to no.
Set Ip Interface Bootp
Enabled
Table 4: The IP interface on ppp-2 fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears.
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4.2.5 Configure address translation
In the Expert View menu, select interfaces -> ppp-2 -> ip -> address translation ->
outgoing. The Outgoing Address Translation page appears.
Figure 10: The outgoing address translation page
Field name Description Command line
Enabled Enables or disables the translation of outgoing IP datagrams on this
interface.
Yes Enables translation of outgoing IP datagrams on the selected interface.
no Disables translation of
outgoing IP datagrams on the selected interface.
Ip Address Translation
Interface Enabled
Table 5: The outgoing address translation on ppp-2 field, its description and command line
On the Outgoing Address Translation page, set Enabled to no when using a routing
protocol such as RIP or BGP.
Click Update. The Configuration Update Result page appears.
4.2.6 Configure IPCP options
In the Expert View menu, select interfaces ->ppp-1 ->ip->ipcp options->local
address. The Local IP Address Negotiation page appears.
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Figure 11: The local IP address page
Field name Description Command line
Enabled Enables or disables the IP address negotiation on the local end of the link.
Set Enabled to yes.
Set Ppp Interface Local
Option Ipcp Address
Enabled
Required Specifies whether or not negotiation of
the local IP address is required.
Set Required to no.
Set Ppp Interface Local
Option Ipcp Address
Negotiation Required
Enabled
Negotiable Indicates whether the IP address is negotiable or not negotiable.
Negotiable to yes.
Ppp Interface Local
Option Ipcp Address
Negotiable Enabled
IP Address If negotiation is enabled, enter the IP address to use for local IP address negotiation. Enter the IP address in
dotted decimal notation.
Set IP Address to 0.0.0.0
Ppp Interface Local
Option Ipcp Address Value
Table 6: The local IP address fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears.
In the Expert View menu, select interfaces ->ppp-1 -> ip -> ipcp options-> local
primary dns. The Local Primary DNS page appears.
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Figure 12: The local primary DNS negotiation on ppp-2 page
Field name Description Command line
Enabled Enables or disables negotiation of the primary DNS IP address on the local end of the link.
Set Enabled to yes.
Set Ppp Interface Local
Option Ipcp Primary Dns
Address Enabled
Required Enables or disables primary DNS
negotiation on the local end of the link.
Set Required to no.
Set Ppp Interface Local
Option Ipcp Primary Dns
Address Negotiation
Required Enabled
Negotiable Indicates whether primary DNS negotiation is negotiable or not negotiable by the local end of the link.
Negotiable to yes.
Set Ppp Interface Local
Option Ipcp Primary Dns
Address Negotiable
Enabled
IP Address Enter the IP address of the primary DNS server to be used by the local end of the link. Setting the IP address to 0.0.0.0 is an explicit request that
the remote end provides the address information.
Address to 0.0.0.0.
Set Ppp Interface Local
Option Ipcp Primary Dns
Address Value
Table 7: The local primary DNS fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears.
In the Expert View menu, select interfaces ->ppp-2 ->ip->ipcp options->local
secondary dns. The Local Secondary DNS Negotiation page appears.
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Figure 13: The local secondary DNS negotiation on ppp-2 page
Field name Description Command line
Enabled Enables or disables negotiation of the primary DNS IP address on the local end of the link.
Set Enabled to yes.
Set Ppp Interface Local
Option Ipcp Secondary Dns
Address Enabled
Required Enables or disables primary DNS
negotiation on the local end of the link.
Set Required to no.
Set Ppp Interface Local
Option Ipcp Secondary Dns
Address Negotiation
Required Enabled
Negotiable Indicates whether primary DNS negotiation is negotiable or not
negotiable by the local end of the link.
Negotiable to yes.
Set Ppp Interface Local
Option Ipcp Secondary Dns
Address Negotiable
Enabled
IP Address Enter the IP address of the primary DNS server to be used by the local end of the link. Setting the IP address
to 0.0.0.0 is an explicit request that
the remote end provides the address information.
Set Address to 0.0.0.0
Set Ppp Interface Local
Option Ipcp Secondary Dns
Address Value
Figure 14: The secondary DNS fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears.
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4.2.7 Select asynchronous PPP operation
All PPP interfaces by default are configured for synchronous data transfer. The GSM (3G)
modem however uses asynchronous data transfer so you must configure the PPP
interface to operate asynchronously.
In the Expert View menu, select interfaces -> ppp-1 -> ppp -> ppp. The PPP Interface
page appears. Click Advanced to view advanced options.
Figure 15: The PPP interface page
Set Enabled to yes, and set Asychronous Link Enabled to yes. You can leave all other
settings at their default values.
Field name Configuration Command line
Enabled Enables the ppp-2 interface. Set Ppp Interface
Enabled
Maximum Receive Unit (MRU)
The SMG sends the MRU to the end device or peer to inform it that the router can receive larger packets, or to
request that the peer send smaller
packets. Enter the MRU for the specified PPP interface. Minimum value is 512 bytes. Default/Maximum value is 1524 bytes.
Set Ppp Interface
Maximum Receive Unit
Maximum Remote
Receive Unit
The peer sends the Maximum Remote
Receive Unit (MRRU) to the SMG to inform it that the remote router can receive larger packets, or to request
Set Ppp Interface
Maximum Remote Receive
Unit
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that the peer send smaller packets.
Enter the MRRU for the specified PPP interface. Minimum value is 512 bytes. Default/Maximum value is 1524 bytes.
Period Authentication Timer
Indicates the length of time, up to 3600 seconds, between successive attempts to authenticate the PPP peer associated with the selected PPP interface.
Set Ppp Interface
Periodic Authentication
Timer
Maximum Authentication Retries
Indicates the maximum number of authentication retries after the first authentication attempt fails. When the maximum number of retries is exceeded, the connection is terminated on the selected PPP interface. The
maximum number of retries allowed is 64; the default is 3. Minimum value is
0 and maximum value is 64.
Set Ppp Interface
Maximum Number Of
Authentication Retries
IP Enabled Enables IP on the interface. Set Ppp Interface Ip
Enabled
Bridging Enabled Enables or disables bridging negotiation and operation on the selected PPP interface.
Set Ppp Interface Stp
Enabled
Time to Send LQR Indicates the length of time in seconds to send the LQR. The maximum allowed is 3600 seconds; the default is 0 seconds.
Set Ppp Interface Time
To Send Lqr
Send Time Remaining Enabled
Enables or disables the option to send a notice indicating the amount of time remaining for the connection on the selected interface.
Set Ppp Interface Send
Time Remaining Enabled
Send Identifier
String Enabled
Enables or disables the option to send
an identifier string on the selected
interface. When this option is enabled, enter the identifier string in the Identifier String field.
Set Ppp Interface Send
Identifier String
Enabled
Identifier String Used to enter the identifier string when Send Identifier String Enabled is set to
yes.
Set Ppp Interface
Identifier String
Asynchronous Link Enabled
Enables the interface to communicate in asynchronous mode.
Set Ppp Interface
Asynchronous Link
Enabled
Primary DNS IP Address
Address of the primary DNS server. Set Ppp Interface Dns Ip
Address
Secondary DNS IP Address
Address of the secondary DNS server. Set Ppp Interface
Secondary Dns Ip Address
Table 8: The PPP Interface fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears.
4.2.8 Configure 3G Username and Password
Access to each PPP interface can be restricted, based on a username and password. The
username and password for the local interface are entered in the Local Username and
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Local Password fields. In some cases, the remote end of the connection may also require
a username and password for authentication. The username and password for the
remote end are entered in the Remote Username and Remote Password fields.
Note: Password validation does not require a minimum length or the use of numeric
characters.
In the Expert View menu, select interfaces -> ppp-2 -> ppp -> authentication
-> name and password. The Username and Password page appears.
Figure 16: The username and password page
On the name and password page, set the local username and password.
Field name Description Command line
Local Username Enter an ASCII string for the
authentication user name on the selected PPP interface. This username is used in PAP and CHAP security.
Option Description
Minimum length
0
Default Value Unspecified
Maximum length
63
Units Unspecified
Set Ppp Interface User
Name
Local Password Enter an ASCII string for the authentication user password on the
selected PPP interface.
To ensure security, the password is displayed with asterisks (*) replacing the actual characters. The password is used in PAP and CHAP security.
Set Ppp Interface User
Encrypted Password
Local Password
Confirm
Retype the ASCII string for the
authentication user password on the selected PPP interface.
Remote Username Option Description
Minimum length
0
Default Value Unspecified
Maximum 63
Set Ppp Interface Remote
User Name
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length
Units Unspecified
Remote Password Enter an ASCII string for the remote authentication user password.
Set Ppp Interface Remote
User Encrypted Password
Remote Password
Confirm
Re-type the ASCII string for the
authentication user password on the selected PPP interface.
Table 9: The username and password fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears.
The Send PAP Password on ppp form is used to indicate whether or not to send the
Password Authentication Protocol (PAP) password in response to a request.
In the Expert View menu, select interfaces -> ppp-2 -> ppp->authentication->send
PAP. The Send PAP Password page appears.
Figure 17: The send PAP password page
On the Send PAP page, set enabled to yes, required to no, and Negotiable to yes.
Field name Description Command line
Enabled Enables or disables sending the PAP
password in response to a PAP password validation request on the interface.
Option Description
yes Enables sending PAP
Ppp Interface Remote
Option Pap Enabled
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no Disables sending PAP
Required Specifies whether or not the PAP password should be sent in response to a request.
Option Description
yes Enables sending PAP in response to a request.
no Disables sending PAP in response to a request.
Ppp Interface Remote
Option Pap Negotiation
Required Enabled
Negotiable Specifies whether or not sending the PAP password is negotiable.
Option Description
yes Enables sending PAP is
negotiable.
no Disables sending PAP is
not negotiable.
Ppp Interface Remote
Option Pap Negotiable
Enabled
Table 10: The send PAP password on ppp fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears.
In the Expert View menu, select interfaces -> ppp-2 -> ppp->authentication-
>Send CHAP. The Send CHAP Password page appears.
Figure 18: The send CHAP password on ppp-2 page
On the Send CHAP page, set enabled to yes, required to no, and Negotiable to yes.
Click Update. The Configuration Update Result page appears.
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Configuring a GSM (3G) modem on a GW2040 Series Router © Virtual Access Ltd. Issue: 1.5 Page 24 of 34
4.2.9 Set dialling options for GSM only
In the Expert View menu, select interfaces -> ppp-2 -> call control -> call. The Call
Details page appears.
Figure 19: The call details on ppp-2 page
Field name Configuration Command line
Outgoing Call Destination
Number
Enter the ISP number to call to establish a connection to the Internet.
Normally,*99# string is valid. Check with your ISP to confirm.
Set Dial Neighbour
Originate Address
Outgoing Call Destination Subaddress
Specifies the device’s subaddress, or extension, if the call destination device has a subaddress defined. No spaces are allowed.
Set Dial Neighbour
Originate Subaddress
Incoming Call Remote Number
Specifies the number of one of the locations that is allowed to place calls on this interface. No spaces are allowed.
Set Dial Neighbour Answer
Address
Incoming Call Local Number
Specifies the device’s local subaddress, or extension, if the call source has a subaddress defined. No spaces are allowed.
Set Dial Neighbour
Received Called Address
ISDN Call Type If using ISDN, defines the call type. Set Dial Neighbour Call
Type
Permissions Assigns the dial permissions to call, answer, call and answer, call back, or
CLI auto answer.
Set Dial Neighbour
Permission
Auto Connect Enabled
Allows the GSM (3G) modem to bring up the link automatically when the GW2040 is restarted.
Set Dial Neighbour Call
Autoconnect
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Inactivity Timer Period of inactivity elapsed before the
call connection is disconnected.
Set Dial Neighbour
Inactivity Timer
Minimum Duration Minimum connection time before the
inactivity timer becomes active.
Set Dial Neighbour
Minimum Duration
Maximum Duration Maximum time that the connection should be maintained.
Set Dial Neighbour
Maximum Duration
Table 11: The call details fields, their descriptions and command lines
On the Call Details page, enter the number for the GSM (3G) modem to connect to.
Normally, *99# is a valid string. Ensure that ‘Permissions’ is set to call.
Click Update. The Configuration Update Result page appears.
4.2.10 Configure the modem interface
In the Expert View menu, select interfaces -> modem-0 -> modem interface. The
Modem Interface page appears.
The modem is set to US country code by default. To change the required country code,
on the Modem Interface on modem-0 page, click Advanced.
Figure 20: The modem interface page
Set Enabled to yes.
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To set the appropriate country code, type in boot initialised string using the country code
shown in Table 12.
Use ; (semi-colon) to separate multiple commands.
Field name Description Command line
Enabled Specifies if the modem interface is enabled.
Set Enabled to yes.
Set Modem Interface
Enabled
Boot Initialisation String
Defines an initialisation string that is sent to the modem on boot.
US value Default
UK value at+gci=B4;
Japan value
at+gci=00;
Multiple
command example
at+gci=B4;+vcid=1;v0w2e0
Set Modem Interface
Boot Initialization
String
Full Duplex Enabled or disable full duplex on modem. Set Modem Interface
Fullduplex Enabled
Tone Dial Enabled Enables or disable dial tone. Set Modem Interface
Tone Dial Enabled
Table 12: The modem interface on modem-0 fields, their descriptions and command lines
Click Update. The Configuration Update Result page appears.
4.2.11 Save the configuration
In the Configuration Update Result page, click Save to flash.
Figure 21: The configuration update results page
The Save Configuration to Flash page appears.
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Figure 22: The save configuration to flash page
In the drop-down menu select the Config you want to save changes to and click Save.
There are 3 options to save to:
Config 1
Config 2
Alternate Config
It is good practice to save to Alternate Config in case your committed configurations
are unsuccessful.
If you select a different configuration option to the existing configuration, you will need
to change the Boot Config to reload into the correct configuration.
4.2.12 Reload the configuration
In the Expert View menu, select set boot configuration.
In the drop-down menu, select the Config option you have chosen to save to.
Click Select.
Figure 23: The next boot configuration page
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5 Performing GSM (3G) monitoring and diagnostics
The GW2040 Series router supports extensive remote diagnostics, status and appliance
monitoring capabilities.
The status and diagnostics tools are provided as a series of Java applets.
5.1 View the connection monitor
To access Monitor, in the Advanced menu, click Connection Monitor.
The GSM (3G) modem interface is shown as MODEM on the Connection Monitor
interface.
Figure 24: The connection monitor interface
5.1.1 Call history
The Call History page gives a history of GSM (3G) connectivity over a number of days.
You can use the zoom facility to view detailed information for any hour during that
period.
In the Status menu, click Call History. The Call History applet appears.
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Figure 25: The call history applet
Field name Configuration
Interface PPP interface number.
Title Descriptive name of the PPP interface.
Duration Call duration.
Connect Connect time.
Disconnect Disconnect time.
Channel Physical channel name – modem-0 is used for GSM (3G) modem.
Called No Called ISP phone number (not shown in case of GPRS mode connection).
Source IP Source IP address of the packet that caused the router to bring up this call.
Destination
Destination IP address of the packet that caused the router
to bring up call.
Protocol Protocol carried by the IP packet that caused the router to bring up this call.
Data In Number of data bytes and packets received on this call.
Data Out Number of data bytes and packets transmitted on this call.
Table 13: Outgoing data call box fields
Command line: show call history
Figure 26: Output from the command line show call history
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5.1.2 Active data connections
The Active Data Connection page shows the type of connection IP address and data
uptime duration.
In the Status menu, click Active Data Connections. The Active Data Connections applet
appears.
Figure 27: The active data connections applet
Command line: show active connections
Figure 28: Output from the command line show active connections
5.1.3 Trace analyzer
The Trace Analyzer provides a web interface to event tracing allowing you to quickly
locate and analyze problems.
To view the Trace Analyzer, from the web interface Start page, click Advanced.
In the Advanced menu, click Diagnostics.
On the Diagnostics page, click Trace Analyzer. The Trace Analyzer pop-up window
appears.
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Figure 29: The trace analyzer page
To trace modem events, check Custom Events and then click Select. The Select Events
to Trace pop-up window appears.
In the Select Event Classes to Trace dialog box, add Modem to the list of selected
events.
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Figure 30: The select event class pop-up window
Click OK.
In the Trace Analyzer window, click Start Trace.
The modem call events display in the trace analyzer window.
Figure 31 shows the type of events that will display when the GSM (3G) modem
establishes a link with the ISP.
For a full list of GSM modem events, see Table 14.
Figure 31: The trace analyzer event log
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Command Action performed by command
++modem Starts tracing modem events
- (minus sign) Stops modem tracing.
Severity Text Description
INFO Modem: Dial (<called number>) Outgoing GSM (3G) modem call in progress to called number.
DEBUG Modem: error creating timer Debug messages logged if GSM driver failed to allocate memory for internal
timer.
NOTICE Modem: Dial Failed (outgoing calls not allowed) Call permissions does not allow dial-out.
NOTICE Modem: Dial Failed (no number configured) No destination number is configured.
INFO Modem: Outgoing Call Connected (<speed>) Outgoing GSM connection established.
INFO Modem: Disconnected GSM (3G) modem disconnected.
INFO Modem: SIM READY SIM status is ready for operation, no PIN is necessary.
INFO Modem: SIM PIN2? SIM is present, but PIN2 is required.
INFO Modem: SIM PIN? SIM is present, but PIN is required.
INFO MODEM: SIM PUK2? SIM is present, but PUK2 is required.
INFO MODEM: SIM PUK? SIM is present, but PUK is required.
INFO MODEM: REGISTERED TO NTWK GSM (3G) modem registered to home network.
INFO MODEM: NETWORK NOT FOUND GSM (3G) modem could not find mobile
network.
INFO MODEM: SEARCHING FOR NTWK GSM (3G) modem is searching for mobile network.
INFO MODEM: DENIED NTWK REGISTR. GSM (3G) modem has been denied network registration.
INFO MODEM: NTWK STATUS UNKNOWN The status of network registration is unknown.
INFO MODEM: REGISTERED ROAMING GSM (3G) modem registered and is roaming on one of the networks.
INFO MODEM: Code accepted PIN, PIN2, PUK or PUK2 code accepted.
INFO MODEM: Code rejected PIN, PIN2, PUK or PUK2 code rejected.
INFO MODEM: Attached to GPRS network GSM (3G) modem attached to GPRS
network.
INFO MODEM: Connecting GPRS (<APN>) GSM (3G) modem is connecting to GPRS network.
INFO MODEM: Outgoing Call Local Disconnect GSM (3G) connection is terminated
Table 14: A list of GSM modem events
5.1.4 Modem statistics and signal quality
To view modem statistics, from the Start page, click Advanced.
In the Advanced menu, click Expert View. In the top menu, click Operations.
In the Operations menu, click Performance ->Interface stats -> modem (0). The
Statistics for Interface modem page appears.
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Figure 25: The statistics for interface modem-0 page
Show modem interface type modem -0
Show modem interface gsm technology modem -0
Show modem interface gsm signal quality modem -0
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