Gigaset SX553 WLAN dsl

Windows ME

Internet

Windows 2000

Local area network

Windows XP

Windows 98 SE

There are various ways in which you can set up the network using a Gigaset SX553 WLAN dsl. You can
u set up a wired local area network (Ethernet) and allow the connected PCs access to
the Internet (see page 8). u set up a wireless local area network (WLAN) and allow the connected PCs access to the Internet (see page 9). u set up a local area network comprising wireless and wired network components (see page 11).
The Gigaset SX553 WLAN dsl Wired local area network (Ethernet)
In a wired local area network, PCs communicate with one another via an Ethernet cable. When the Siemens Gigaset SX553 WLAN dsl is used, it establishes the connection between the PCs. For this it has four Ethernet LAN ports for connecting four PCs. The PCs have to be equipped with a network port (Ethernet). New PCs frequently already have this port. For older PCs you need to install an Ethernet network card. The PC and the Ethernet LAN port on the Gigaset SX553 WLAN dsl are connected using an Ethernet cable (CAT5). There is one supplied. You can obtain additional Ethernet cables from your retailer. The Gigaset SX553 WLAN dsl allows all PCs to access the Internet simultaneously.

Ethernet

The Gigaset SX553 WLAN dsl Wireless local area network (WLAN)
In a wireless local area network (WLAN) PCs are linked without wires or cables. The PCs have to be equipped with a wireless local area network adapter (WLAN adapter), e.g. a Gigaset USB Adapter 108. We generally differentiate between two types of wireless network:
u Infrastructure mode u Ad-hoc mode
Infrastructure mode The infrastructure mode connects wireless and wired networks with one another. In addition to the mobile stations, the infrastructure mode needs an access point such as the Gigaset SX553 WLAN dsl. In infrastructure mode, the stations in the network always communicate via this access point. The access point sets up the wireless network on a permanent basis. Each station that wants to be part of the wireless network must first register with the access point before it can exchange data. The range of the wireless network can be increased by using an access point. The access point establishes the connection between the mobile stations of a wireless network and a wired LAN (Ethernet) or the Internet. In this case this is described as the device's router functionality. The router sends data packets that are not addressed to stations within the network "outside" and forwards data packets originating from "outside" to the appropriate station within the network. You can use the Gigaset SX553 WLAN dsl to connect

Enter a character string of your choice in the SSID field. The SSID is case sensitive.
It can be up to 32 alphanumerical characters long. Note: The connection to the wireless network adapters will be interrupted until the new SSID has also been entered.
Deactivate SSID broadcast and make a note of the SSID. You will need this to connect your PC with the Gigaset SX553 WLAN dsl at a later time.
Setting up security functions for the wireless network
In the next step you can set up the encryption and authentication methods for your wireless network. Wireless networks are even more susceptible to eavesdropping than wired networks. With conventional network adapters an intruder only needs a device with a WLAN adapter (e.g. a notebook or a PDA (Personal Digital Assistant)) with an appropriately configured network card in order to eavesdrop on every communication made via a nearby wireless LAN. The Gigaset SX553 WLAN dsl makes use of effective encryption methods to prevent unauthorised eavesdropping as far as possible.
You can use the following security mechanisms:
u WPA2-PSK or WPA2-PSK/WPA-PSK (see page 46) u WEP encryption (Wired Equivalent Privacy, see page 47)
We recommend that you use WPA2-PSK if it is supported by all components in your wireless network. You will find further options for setting up data encryption and authentication in the Advanced Settings menu (see page 83).
Security settings WPA2/WPA with Pre-shared key (PSK)
WPA is a more advanced procedure than WEP for protecting wireless networks. Dynamic keys, based on TKIP (Temporal Key Integration Protocol) offer increased security. The new standard WPA2 uses AES for the encryption. WPA-PSK is a special WPA mode for private users and users in small companies without their own authentication server. After a certain period of time (Rekey interval), encryption keys are automatically generated with the Pre-shared key, automatically changed ("rekeying") and authenticated between the devices. Note: Every PC (network adapter) that requires access to a WPA-protected wireless network must also support WPA. To find out whether and how you can use WPA on your PC, read your network adapter's user guide.

Select WPA2-PSK if it is supported by all components in your wireless network.
Select WPA2-PSK / WPA-PSK if some or all components in your wireless network
support WPA with the TKIP protocol.
Enter a key of your choice in the Pre-shared key field (min. 8 to max. 63 characters)
and confirm it by repeating the entry. You must set up the same Pre-shared key for all wirelessly connected PCs.
To go to the next step, click Next >.
Security settings WEP encryption
WEP (Wired Equivalent Privacy) is an encryption for radio signals in wireless networks and meets the IEEE 802.11 standard. If you transmit data wirelessly and not all components in your wireless network support the higher security standard WPA (see page 46), we recommend that you activate WEP-Encryption. You can choose either the standard 64-bit key or the more robust 128-bit key. The keys are generated in hexadecimal or in ASCII format. You must use the same keys for encryption and decryption for the Gigaset SX553 WLAN dsl and all your wireless network adapters.
Select the Key length: 64 bits or 128 bits. Select the Input type, i.e. whether the key is to be entered manually or generated
automatically by means of a Passphrase.

Manual key entry

Select the Key type, Hex or ASCII.
If you select Hex as the key type you can use the characters 0 to 9 and A to F. With a 64-bit encryption depth the key is exactly 10 characters long. With a 128-bit encryption depth the key is exactly 26 characters long. If you select ASCII as the key type, you can use the characters 0 to 9, A to Z, and a to z plus the special characters in the ASCII character set. With a 64-bit encryption depth the key is exactly 5 characters long. With a 128-bit encryption depth the key is exactly 13 characters long.
Confirm the key by entering it again in the Confirm key field.
Generating a key by means of a Passphrase
Enter a Passphrase (up to 32 characters) and confirm it by entering it again. The key
is generated automatically. Note:
u It is very important that you make a note of the key or passphrase. You will need
this information to configure the wireless network adapters properly.
u When you have concluded the Security Setup Wizard, you must change the
WEP encryption in the wireless network adapters for the connected PCs in the same way, otherwise they will not be given access to the wireless network of the Gigaset SX553 WLAN dsl.
To go to the next step in the Security Setup Wizard, click Next >.
Access control within the wireless network
In this step you can specify which PCs will have wireless access to the Gigaset SX553 WLAN dsl and hence to your LAN. The access control is based on the MAC address of the PCs' network adapters. You can enter the MAC addresses for the PCs manually or select them from the list of PCs that are currently logged in.

Where configuration is concerned, this means:
u You have to define a so-called trigger port for the application and also the protocol
(TCP or UDP) that this port uses. You then assign the public ports that are to be opened for the application to this trigger port. u The router checks all outgoing data for the port number and protocol. If it identifies a match of port and protocol for a defined trigger port, then it will open the assigned public ports and notes the IP address of the PC that sent the data. If data comes back from the Internet via one of these public ports, the router allows it through and directs it to the appropriate PC. A trigger event always comes from a PC within the local network. If a trigger port is addressed from outside, the router simply ignores it. Note:
u An application that is configured for port triggering can only be run by one user in
the local network at a time.
u As long as the public ports are open, they can be used by unauthorised persons to
gain access to a PC in the local network.
When the Gigaset SX553 WLAN dsl is supplied, the NAT function (Network Address Translation) is activated, i.e. all IP addresses of PCs in the local network are converted to the router's public IP address when accessing the Internet. You can use the NAT settings to configure the Gigaset SX553 WLAN dsl to carry out the following tasks:
u set up port triggering for certain applications (see page 71), u set up the Gigaset SX553 WLAN dsl as a virtual server by configuring Port Forward-

ing (see page 73),

u open the firewall for selected PCs (see page 74).
Note: For the functions described below, the IP addresses of the PCs must remain unchanged. If the IP addresses of the PCs are assigned via the DHCP server of the Gigaset SX553 WLAN dsl, you must select Never expires (see page 79) as the settings in the Local Network menu entry for the Lease time or assign static IP addresses for the PCs. You can activate or deactivate the NAT function (by default the NAT function is activated).
In the Advanced Settings Internet menu, select Address Translation (NAT) and
then select the required option.

Port Triggering

If you configure port triggering for a certain application, you need to determine a socalled trigger port and the protocol (TCP or UDP) that this port uses. You then assign the public ports that are to be opened for the application to this trigger port. You can select known Internet services or assign ports or port blocks manually.

The name of the client is shown in the Comment field. The MAC address of the repeater is shown in the MAC address field if there is a connection. The SSID is shown in the SSID field if there is a connection to the repeater. The radio channel used for data transfer is shown in the Channel field. The Signal strength shows the strength of the connection to the repeater in percentage terms if there is such a connection.
Click Refresh to update the display. Click Add to add the data of another repeater. Apply the settings by clicking OK.
A detailed description of how to configure a network with repeaters can be found in the User Guide for the Gigaset WLAN Repeater 108, for example.
Setting up Internet telephony (VoIP)
The Gigaset SX553 WLAN dsl allows you to make telephone calls via the Internet using an analogue telephone and, if required, via the fixed network as usual. To do this, you require access authorisation from your service provider and the relevant access data. To make calls you must enter this data along with other configuration settings in Advanced Settings in the VoIP (Voice over IP) menu. The menu comprises the following entries:
u VoIP settings: Enter the basic data from your service provider here (see page 92). u ISDN: Enter the multiple subscriber numbers for your ISDN telephone connection

here (see page 94).

u Extensions: Set up the functions for two extensions here (see page 95). u Dialling rules: Specify numbers here that are to be dialled only via the fixed network
or only via the Internet. You can block numbers completely (e.g. 0190 numbers) or enter a call-by-call provider for the fixed network (see page 97). Note: If you do not specify any of your own dialling rules, then the default settings will be used as entered in the Dialing Plans screen in the VoIP menu. All other calls are made via the Internet. If you press the * key twice before dialling the phone number, the call will always be made over the fixed network. The dialling rules will not apply in this case. Switching over takes a little time. For automatic dialling insert a pause after pressing the * key twice by pressing the recall key. You should therefore press the following keys: * key, * key, recall key and then the keys for the phone number. Please also remember this when saving phone numbers in the telephone if a number is always to be called via the fixed network. Otherwise this number might not be dialled correctly.
u Quick dial: Specify quick dial numbers or terms here for phone numbers you use fre-

quently (see page 100).

Important information:
u If VoIP is not set up you will always make calls via the fixed network. The dialling
rules will not apply in this case (see page 97). Phone 1 port.
u All calls from the fixed network are forwarded to the phone connected to the u If VoIP is set up, then depending on your provider a call-by-call number is preset

for fixed network calls.

u Check these dialling rules (see page 97) and change them if you have agreed special
phone tariffs with another provider.
u Do not change the default setting for the Internet connection mode (= "permanent
connection") if you are using VoIP (see page 37). You can only be called via VoIP if this setting is used. Remember, though, that this setting can result in high connection costs if you have agreed a time-based tariff with your Internet provider.
u If there is a power failure or if you have turned off the Gigaset SX553 WLAN dsl you
can make no more calls if you have an ISDN connection. For an analogue phone connection you can only make calls using a phone connected to the Phone 1 port. The dialling rules will not apply in this case.

VoIP settings

You will receive the access and configuration data for Internet telephony from your service provider.
In the Advanced Settings Telephony menu, select VoIP.
Select On if you wish to use Internet telephony (default setting). Apply the default settings for Voice Quality: Voice activity detection, Comfort
noise generation, Gain control and Fixed gain control (input/output).
To add the data for your VoIP accounts, click Add.
If you have configured VoIP settings in the Basic Setup Wizard the data for your VoIP account is shown in this line. You can edit this data or add new data for additional accounts.
Click On to activate the VoIP account option.
In the Service provider menu, select the option Other or else select one of the
already preconfigured providers.
Enter the data you have received from your service provider:
User name, Displayed name, Authorization user name, Password, SIP domain, SIP realm, Proxy server address and Registrar server address.
Leave the default settings for the parameters SIP listen port, Proxy server port, Click the OK button to apply the settings.
Configuring the Advanced Settings ISDN
If you use an ISDN connection for fixed network telephony, you can enter the phone numbers (MSN) for your extensions.
In the Advanced Settings Telephony menu, select ISDN.
Enter one of the multiple subscriber numbers for your ISDN system. Click the Add button to add the entry to the list. Click the Delete button to delete the entry from the list. Apply the settings by clicking OK.
Configuring the Advanced Settings Extensions
Your Gigaset SX553 WLAN dsl offers you two internal extensions that you can use for making calls via the fixed network or via VoIP. You can assign each extension the relevant phone numbers for incoming and outgoing calls and make other settings such as call waiting, or display the caller's number, or other technical settings.

To make these settings, in the Advanced Settings Telephony menu, select the
menu entry Dialing Plans.

Area code

Enter the Area code for your current location.
Predial area code for local calls through VoIP
If you activate this function, the device automatically predials the area code for local calls via a VoIP provider. This saves you dialling the area code each time, as used to be the case with VoIP.
Wait for dial tone on fixed line
If you activate this option, the device waits until the dial tone is recognised before dialling within the fixed network. Otherwise the first two digits of the phone number may be lost as it can take a few seconds to change from Internet telephony to fixed network. Only activate this function if it is necessary for the smooth functioning of your device within the telephone network.
If you wish to make all fixed network calls via a call-by-call provider, activate the

Preselection function.

Enter the provider's number in the Preselection number field. The phone numbers and prefixes for some Dialing plans are already entered in the
relevant fields. You can accept these default settings, overwrite them, delete them or add new ones. Note: We recommend leaving the settings for emergency numbers on "Fixed line". In an emergency there can sometimes be problems determining the location with VoIP emergency calls if you are not in a position to state your current location.
In the Connection type selection field, you can specify whether the entered number
is always to be called via the Internet or via the fixed network. Alternatively, you can block the number completely.
In the Comment field, you can enter a description for the number. Click Delete to remove the whole line. You can add a new line by clicking the Add
button. You can define up to a maximum of 32 dialling rules.
Note: u If you do not specify any dialling rules, the default settings will be used. All other calls are made via the Internet. If, however, you press the * key twice before dialling the phone number, then the call will always be made via the fixed network. Switching over takes a little time. For automatic dialling insert a pause after pressing the * key twice. Information about this will be found in the user guide for your phone. You should therefore press the following keys: * key, * key, pause key and then the keys for the required phone number.
u If VoIP (Internet telephony) is not set up you will always make calls via the fixed
network. The dialling rules will not apply in this case. preset for fixed network calls.

In the Authorized client field, enter the IP address of the PC that is to have access
Note: u The Internet service provider may assign a dynamic IP address to the PC. This allows the IP address to change. Make sure the PC that accesses the router via the Internet always has the same IP address or use a DynDNS service (see page 75).
u To access the configuration environment via Remote Management, you must
Remote Management for one particular PC:
to the user interface of the Gigaset SX553 WLAN dsl from outside the local network.
enter the address of the Gigaset SX553 WLAN dsl to be managed in the following format: http://X.X.X.X:8080 (where x.x.x.x stands for the IP address of the Gigaset SX553 WLAN dsl).
Backing up and restoring a configuration
When the Gigaset SX553 WLAN dsl has been configured, it is recommended that you back up the settings. This means you can restore the settings at any time if they are accidentally deleted or overwritten. You can also reset the configuration to the factory settings. You should always do this before handing the device to an external person.
u In the Advanced Settings Administration field, select Save & Restore.
Backing up configuration data
For Task, activate the Save configuration option.
You can then set the location in which the backup file is to be saved in a file selection window.
Select a local directory on your PC where you want to save the configuration file and

enter a file name.

Click Save.
The current configuration data is now saved in the specified file.

Restoring the saved data

For Task, activate the Restore configuration option. In the file system, select the backup file that you want to use to restore the configuration. A window will appear, prompting you to confirm the procedure.
Click OK. The configuration will now be updated.
Administration Restoring factory settings
You can reset the Gigaset SX553 WLAN dsl to the factory settings. You should do this before making the device available to others or exchanging it through the dealer. Otherwise unauthorised persons may use the Internet access data at your expense.
Select Reset configuration to factory default settings and click OK.
A window will appear, prompting you to confirm the procedure. Note: If the Gigaset SX553 WLAN dsl is not operating properly, you can reboot it. It should then be ready for use again (see page 20). Please remember that when the device is fully reset, all the configuration settings are returned to the factory settings. This means that you will have to completely reconfigure the Gigaset SX553 WLAN dsl.

Reboot

If the Gigaset SX553 WLAN dsl is not operating properly, you can reboot it. It should then be ready for use again. In the Administration menu, select Reboot. Click OK to reboot the device.

Updating firmware

If Siemens or your Internet service provider release a new version of the firmware, you can update the firmware of the Gigaset SX553 WLAN dsl. To do this you must first download the new firmware onto your PC. Carry out the following steps:
End all network activities on the local network. In the Advanced Settings Administration menu, select Firmware Update.
The firmware version that is currently installed on the device is displayed in the Current firmware version line.
In the Firmware update file field, enter the file with the new firmware that you Click OK. The firmware will now be updated.
have downloaded from the Internet or click Browse to search for the file in your PC's file system.
Warning: Do not turn off the Gigaset SX553 WLAN dsl during the updating procedure and do not interrupt the power supply. Turning off the device can make it unusable. The update can take several minutes. Siemens Home and Office Communication Devices GmbH & Co. KG accepts no liability for damage that occurs through improper use. After a successful update, the device is automatically rebooted. All LEDs go out. The login screen is displayed again. To see whether the upgrade procedure was successfully completed, check the current software version displayed in the overview of the Status menu (see page 117).

System Log

The System Log is displayed in the Status Device menu. It contains important information about how the device functions and possible problems. This information can also be automatically transferred to a system log-server.
In the Advanced Settings Administration menu, select System Log to make the

settings for the log.

Log level: Specify how much information is to be contained in the system log. You
can choose between four levels: Critical: Log file of the most important information for possible device functionality problems Debugging: Complete and detailed information on all device functions Warning and Informational are intermediate levels. Activate this function if the device system log is to be automatically transferred to a system log server in the local network. Server address: Enter the IP address for the system log server. Server port: Enter the port of the system log server that is to be used to transfer the system log.

Right-click the browser information bar. Select Allow popups from this screen. Confirm the dialogue window by clicking OK.
The configuration pages for the Gigaset SX553 WLAN dsl are now allowed as popups. You can make additional settings for popups within Internet Explorer
u via the Tools Popup manager menu item or u via Tools Internet Options in the Privacy tab.
Configuring the local network Synchronizing TCP/IP settings with the Gigaset SX553 WLAN dsl
You have now configured your PC so that it is ready to be connected to the Gigaset SX553 WLAN dsl. You now have to release the old TCP/IP settings and synchronise them with the settings of your Gigaset SX553 WLAN dsl.
Click Start on the Windows Desktop and then Programs, followed by Accessories
and finally Command prompt. press the ENTER key.
In the Command prompt window, enter the ipconfig /release command and
Then enter the ipconfig /renew command and press the ENTER key.
If the default IP address (192.168.2.1) of the Gigaset SX553 WLAN dsl was not changed, the IP address should now read 192.168.2.x (with x being a number between 2 and 255). The Subnet mask must always be 255.255.255.0 and the Default gateway must have the IP address of the Gigaset SX553 WLAN dsl (192.168.2.1). These values confirm that your Gigaset SX553 WLAN dsl is working.
Enter exit and press the Enter key to close the Command prompt window.
Network configuration with Windows 2000
To integrate a PC with Windows 2000 into a network that is configured with a Gigaset SX553 WLAN dsl, you must carry out the following steps: 1. Install the network services (see below). 2. Select computer names and workgroup (see page 139). 3. Install the TCP/IP protocol (see page 140). 4. Make TCP/IP protocol settings (see page 142). 5. Deactivate the http proxy (see page 144). 6. Synchronise the TCP/IP settings with the Gigaset SX553 WLAN dsl (see page 145).
Installing network services
You have to install the network services before the PCs in your network can access shared resources. This is done as follows:
Click Start Settings Control Panel. Double-click the Network and Dial-up connections icon.
In the left-hand pane, click Add Network Components.

contact our Service Centre. United Kingdom Ireland
Please have your proof of purchase ready when calling. Replacement or repair services are not offered in countries where our product is not sold by authorised dealers. Please address any questions about DSL connection and Internet telephony to your network provider.
Guarantee Certificate United Kingdom
Without prejudice to any claim the user (customer) may have in relation to the dealer or retailer, the customer shall be granted a manufacturer's Guarantee under the conditions set out below: u In the case of new devices and their components exhibiting defects resulting from manufacturing and/or material faults within 24 months of purchase, Siemens shall, at its own option and free of charge, either replace the device with another device reflecting the current state of the art, or repair the said device. In respect of parts subject to wear and tear (including but not limited to, batteries, keypads, casing), this warranty shall be valid for six months from the date of purchase. u This Guarantee shall be invalid if the device defect is attributable to improper treatment and/or failure to comply with information contained in the user guides. u This Guarantee shall not apply to or extend to services performed by the authorised dealer or the customer themselves (e. g. installation, configuration, software downloads). User guides and any software supplied on a separate data medium shall be excluded from the Guarantee. u The purchase receipt, together with the date of purchase, shall be required as evidence for invoking the Guarantee. Claims under the Guarantee must be submitted within two months of the Guarantee default becoming evident. u Ownership of devices or components replaced by and returned to Siemens shall vest in Siemens. u This Guarantee shall apply to new devices purchased in the European Union. For Products sold in the United Kingdom the Guarantee is issued by: Siemens Home and Office Communication Devices GmbH & Co. KG, Schlavenhorst 66, D-46395 Bocholt, Germany. u Any other claims resulting out of or in connection with the device shall be excluded from this Guarantee. Nothing in this Guarantee shall attempt to limit or exclude a Customers Statutory Rights, nor the manufacturer's liability for death or personal injury resulting from its negligence. u The duration of the Guarantee shall not be extended by services rendered under the terms of the Guarantee. u Insofar as no Guarantee default exists, Siemens reserves the right to charge the customer for replacement or repair. u The above provisions does not imply a change in the burden of proof to the detriment of the customer. To invoke this Guarantee, please contact the Siemens telephone service. The relevant number is to be found in the accompanying user guide.

Encryption. 45, 83, 86, 184 WEP. 47
Games on the Internet. 70 Gateway. 150, 177 Gigaset SX553 WLAN dsl back panel. 19 configuring. 29 connecting. 43 Ethernet network architecture. 8 front panel. 26 installation. 17 IP address. 29 resetting. 20 setting up. 18 standard setting. 17 temperature range for operation. 18 ways to set up the network. 7 Global IP address, see Public IP address Guarantee Certificate. 172
Hacker attack. 15, 176 Half duplex. 177 Help. 34 Hexadecimal key. 48, 87 Hook flash duration. 96 HTTP Proxy. 177 Hub. 178
Idle time. 111 IEEE. 178 Infrastructure mode. 9, 178 Installation. 17 Installing network services (Windows 2000). 138 Installing printer driver Windows 98, 2000. 163 Windows XP. 162 Installing TCP/IP protocol Windows 2000. 140 Windows 98. 148 Institute of Electrical and Electronic Engineers, see IEEE Internet. 53, 178, 179 connection mode. 38, 56 connection on request. 56 manual connection. 56 menu. 53 service provider. 55 setting up access control. 66 Internet access. 6 Internet connection changing configuration. 55 closing manually. 33 disconnecting automatically. 38, 56 opening manually. 33 setting up. 55 Internet Explorer. 16, 29 Internet protocol, see IP protocol Internet provider. 55 Internet service provider. 55, 178, 179 Internet telephony. 6, 13 analogue phone. 91 dialling schedules. 97
quick dial. 100 setting up. 91 VoIP settings. 92 Internet time. 110 Internet use limits. 60 time limit. 61 volume limit. 61 IP address. 78, 179 address block. 78 assigning automatically. 78, 129 assigning static. 79, 129 dynamic. 129, 176 fixed. 177 Gigaset SX553 WLAN dsl. 29 private. 181 public. 181 IP address block for DHCP. 79 IP address pool. 179 IP protocol. 179 ipconfig / release. 145 ipconfig / renew. 145 IPoA. 179 ISDN. 94 ISP, see Internet service provider
Key length. bit (ASCII). 48, bit (ASCII). 48, bit (hexadecimal). 48, 87 Key type. 48
LAN. 11, 179 configuration. 78 LAN port. 19 Lease time. 79, 174 LED behaviour after initial connection. 26 LED displays. 26 Local IP address, see private IP address Local network, see LAN Login screen. 29
MAC access control list. 49, 88 MAC address. 180 changing registration. 59 cloning. 59 MAC address filter. 49 MAC Encapsulated Routing, see MER MAC table. 49 Mains adapter socket. 20 Manual connection. 56 Maximum Receive Unit, see MRU Maximum Transmission Unit, see MTU Mbps. 180 MER. 180 Mobile network. 9 Mozilla Firefox. 16, 29 MRU. 180 MTU. 180