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elmeg T444 Manual

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  • Page 2 Declaration of conformity and CE marks This device meets the requirements of the following EC directive R&TTE 6/3/EG: »Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equip- ment and telecommunications terminal equipment and the mutual recognition of their conformity«. You can also request this EC declaration of conformity at the following Internet URL: http://www.funkwerk-ec.com.

  • Page 3: Table Of Contents

    Router of the PABX elmeg T444 / elmeg T484 ....... .
  • Page 4 Realplayer - Filter ........... . . 28 Mediaplayer - Filter .

  • Page 5: Introduction

    Introduction Router of the PABX elmeg T444 / elmeg T484 The PABX elmeg T444 / elmeg T484 is equipped with an integrated router. You can provide access to the Internet and network several PC via this router. What is a router? A router allows LAN clients (computers, PC within a network) of one network (LAN) to obtain access to a different network, for example Internet.

  • Page 6: Dial-In Into The Lan (Ras)

    Introduction Dial-in into the LAN (RAS) · Using xDSL (for example: SDSL) in conjunction with a DSL modem that is compatible with your ISP with a set, public IP address. These connections require the public IP address that you have been assigned, the IP address of the next gateway (next hop) and the IP address for the name server of your provider.

  • Page 7: Dhcp Server And Ip Address Allocation

    Direct connection (DHCP) Introduction DHCP server and IP address allocation PCs can be provided with a major portion of the configuration required for LAN and Internet access via the DHCP (Dynamic Host Configuration Protocol). The DHCP server integrated into the PABX is capable of supplying corre- sponding configurations to up to 100 PCs (clients).

  • Page 8: What Are Ip Addresses And Subnetwork Masks

    Introduction Router functions IP address for the DNS server (PABX). The PABX system also acts as a DNS proxy in place of the ISP DNS server. What are IP addresses and subnetwork masks With the initial settings IP addresses and subnetwork masks are already set for the PABX system router. Both of these values are each 4 bytes in length.

  • Page 9: Dhcp Server

    Router functions Introduction connection the B channel reverts automatically to use for the Internet connection. This function is available for inco- ming and outgoing voice links. This performance feature requires that the ISDN Speed Manager be installed, or that Internet access is made via the router! The Speed Manager is included in the T-Online installation.

  • Page 10: Dynamic Dns

    Introduction Router functions own queries. The proxy then takes the response from the external network and forwards it to the LAN client that pla- ced the original query. In addition, the result from the query is stored for a defined time (configurable) to answer any subsequent queries of the same type.
  • Page 11 Router functions Introduction Portmapping You wish to access your PC from an external location via Internet. Normally, access via the firewall should be prohi- bited. When you use port mapping, access to a router port that you have enabled is permitted from an external locati- on.

  • Page 12: Router Control Via System Phone

    Introduction Router functions LAN-TAPI The package includes a program called »TAPI for LANs« for use in your network. This software can be installed on any PC in the network. This gives you the possibility of running your TAPI application from a central location via an interface, i.

  • Page 13: Configuration Examples

    Address assignment by DHCP -Recommended configuration - (Default setting) Configuration examples Configuration examples Address assignment by DHCP -Recommended configuration - (Default setting) Address assignment via DHCP is the easiest configuration method for the PABX system and at the clients (PCs). You can configure a LAN client in the network such that it automatically receives its IP address from a DHCP server from the PABX system on startup.
  • Page 14 Configuration examples Address assignment by DHCP -Recommended configuration - (Default setting) Note The network adapter connected to the PABX system must be linked to the TCP/IP protocol, which is a component of Windows. You may have to manually add this protocol. The network adapter may only be linked to the T-DSL / PPP0E protocol, especially if a stand-alone version of the T-DSL driver has been installed.

  • Page 15: Address Assignment Without Dhcp (Set / Mixed Ip Addresses)

    Address assignment by DHCP -Recommended configuration - (Default setting) Configuration examples Sample configuration of a network with DHCP address allocation Configuration of the PABX system in its initial settings NT / Splitter Connection for the service provider S0 intern S0 extern 1a/b 2a/b 3a/b 4a/b...

  • Page 16: Things To Note For This Configuration

    Configuration examples Address assignment by DHCP -Recommended configuration - (Default setting) you are relatively new to Windows network configuration, we recommend a configuration using DHCP. Things to note for this configuration. PABX: You can de-activate the DHCP server for the PABX system using the »Professional Configurator« program. Note You may have to adapt the IP addresses and subnetworks of the PABX system to the settings present on the LAN clients (PCs).
  • Page 17 Address assignment by DHCP -Recommended configuration - (Default setting) Configuration examples Note Please keep in mind that any changes made to the Windows network settings may have serious effects on the LAN clients (PCs). Other methods of connection or applications may also be affected by these changes. In the event that your network settings have already been changed contact your system administrator.

  • Page 18: Sample Configuration Of A Network With Mixed Address Assignment

    Configuration examples Sample configuration of a network with mixed address assignment Sample configuration of a network with mixed address assignment Set IP addresses and IP addresses allocated by DHCP NT / Splitter Connection for the service provider S0 intern S0 extern 1a/b 2a/b 3a/b 4a/b...

  • Page 19: Sample Configuration Of A Network With Set Address Assignment

    Sample configuration of a network with mixed address assignment Configuration examples IP via DHCP: 192. 168. 1. 51 transmitted automatically via DHCP. Gateway: transmitted automatically via DHCP. DNS server: transmitted automatically via DHCP. Subnet mask: transmitted automatically via DHCP. Sample configuration of a network with set address assignment IP address for the PABX: 192.168.1.250 Subnet mask:...

  • Page 20: Checking The Lan Clients (Pcs)

    · Check to ensure that automatic connection to the Internet has been de-activated (see Configurator Net- work«, »Internet«); the connection must then be established manually via the elmeg ControlCenter. The PC is linked to the PABX system via USB. ·...

  • Page 21: Checking The Tcp/Ip Configuration

    Checking the TCP/IP Configuration Checking the TCP/IP Configuration The examples described below are base on the recommended network configuration with automatic address alloca- tion. What this means is that the LAN clients get their IP address via DHCP (»IP address fetched automatically«) and that the DHCP server in the PABX system is switched on (initial setting).
  • Page 22 Checking the TCP/IP Configuration Select the network adapter connected to the pabx. Current IP address of the network adapter (client). Current IP address of the pabx as gateway, DHCP server and DNS server. · The values shown in the screen shot are set as defaults for the initial settings of the PABX system. Depen- ding on how many clients (PCs) are connected, the IP address lies within a range from 192.

  • Page 23: Windows Xp

    Checking the TCP/IP Configuration Windows XP · Open the Windows XP network connections. Select the network adapter connected to the pabx by pressing the right mouse button. Then click »Status«. · The values shown in the screen shot are set as defaults for the initial settings of the PABX system. Depen- ding on how many clients (PCs) are connected, the IP address lies within a range from 192.

  • Page 24: Configuring Internet Access On A Pc

    Checking the TCP/IP Configuration Configuring Internet access on a PC Configuring Internet access on a PC If you have used the Windows dial-up network for Internet access up to now, this connection was always established as a »Dial-up connection« (analog or ISDN). Set-up and termination of an Internet connection was initiated automa- tically by the programs.
  • Page 25 Configuring Internet access on a PC Checking the TCP/IP Configuration...

  • Page 26: Configure Firewall Filters

    Configure firewall filters Configure firewall filters You can only configure filters in the »Professional Configurator«. User-defined filters for the router integrated into the PABX system with packet filter firewalls can be configured un- der Network / Filters. Note We recommend configuring the firewall filters with the aid of the Filter Wizard to ensure configuration(s) appro- priate for and compatible to the applications being used.

  • Page 27: Four Place Holders Are Provided To Achieve An Abstraction When Defining The Filters

    Configure firewall filters Discarding of the packet is generally a safe procedure, as only those packets for which an explicit rule (i.e. deliberately configured) exists are authorized in such a configuration. When defining the filters it is essential to take into account that basically all packets are permitted at all LAN ports (LAN1, LAN2, USB port).
  • Page 28 Configure firewall filters Here you specify the source address for the IP packets for which this filter is valid. Take into account any potential abstractions brought about by place holders. Target address definition Here you specify the target address for the IP packets for which this filter is valid. Take into account any potential abstractions brought about by place holders.

  • Page 29: Filter Wizard

    Filter Wizard Configure firewall filters Note As a result, the PC in your LAN with the IP address 192.168.1.42 has no protection whatsoever from the firewall in your telephone system at Port 22/TCP! You can restrict access options where required if access is to always be effec- ted from an Internet connection with a set IP address (for example T-Interconnect).
  • Page 30 Configure firewall filters Filter Wizard Protecting the system This filter blocks the firewall against connection setups at privileged ports (0 ... 1023) for TCP and UDP. Most rele- vant data services are offered via privileged ports (establishing names, file transfer, etc.). IP Spoofing Blocking This filter blocks the firewall against “fake”...

  • Page 31: Gaming - Filter

    Filter Wizard Configure firewall filters ICMP(all) - Filter This filter permits the “ping” program to be used, for example to check the availability and accessibility of computers in the Internet and to measure the transfer time of IP packets to these computers. This can be useful, for example, for locating the server with the most rapid response time for Internet games.
  • Page 32 Configure firewall filters Filter update Realplayer - Filter This filter makes it possible to use the RealPlayer for streaming audio and video. The following port enables have been provided: Incoming packets: · from port 554 to non-privileged for TCP · from port 7002 to non-privileged ports for TCP ·...
  • Page 33 Filter update Configure firewall filters Note If the “Restore standard” button is grayed out you must first modify one of the given filter settings (activate or de-activate any given filter) before this button is activated. The button “Help” is located in the configuration branch “Network”...
  • Page 34 Index Address assignment by DHCP . . . 9,10,11,12,13 LAN-CAPI..... . 7 Automatic Internet access ... . . 4 LAN-TAPI.
  • Page 36 Funkwerk Enterprise Communications GmbH Südwestpark 94 D-90449 Nürnberg For information on support and service offerings please visit our Website at www.Funkwerk-ec.com where, you will find a Service / Support area Subject to modifications Ausgabe 4 / 010109...

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T484

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