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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. The router then forwards the access request to the defined port of the PC in the network. A fixed IP-address must
be assigned to this PC. When the PC returns data packets the IP address and port number of the PC are replaced by
the router with the number for the port mapping port and the router IP. For “outsiders” on the Internet it then appe-
ars as though there is only one connection to the router.

Note
Please note that when you use port mapping the firewall for the ports enabled for this function is ineffective. The
target PC in your LAN may then be susceptible to any potential attacks.

Port mapping is practical when you wish to run a game server on your own, for example.

·

You can make this server accessible via the Internet to other users.

·

Or, if you require certain peer-to-peer file sharing software that provides greater download bandwidth.

·

When the corresponding PC in your LAN is to be accessible from the Internet (not possible in the standard
configuration with NAT). In this case, certain UDP and TCP ports must be rerouted to a PC in the LAN.

RAS-Server

Using the Remote Access Server (RAS) a field representative, for example, can call into the local network from an ex-
ternal location and then via the local network access the Internet. Access from an external location is also possible via
an ISDN connection.

External access is provided with user-name and password protection. If the call is made from an external location
only, the phone number can also be monitored as an added protection feature. Access can be enabled for several
users. A Windows enable (access to computer, files or printers) and Internet enable can also be configured for each
user.

Note
Note that this access portal is not protected by a firewall!

A PC that dials into the local network via RAS is automatically assigned an IP address by the integrated DHCP server.

Time-controlled router inhibition

With the aid of the calendar, or a manual function of the PABX system, you can set the time(s) of day when Internet
access is possible (permitted). These times are defined via the calendar assigned to the router in the configuration.
Here, it is stipulated that Internet connections can not be set up during night-time operation. You should therefore
set the switching times accordingly. Starting with Version 4 of system phones CS290/CS410, the telephones can be
switched using function keys on the phone; this setting is then retained until the next calendar-based switchover.

LAN-CAPI

The package includes a program called »CAPI 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 CAPI application from a central location via an
interface, i. e. the PABX system. There is no ISDN card required for the PCs. Please note that software used for the
CAPI application may require certain license agreements with the software manufacturer. The program »CAPI in
LAN« does not require a license to run.

Router functions

Introduction

7

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Страница 2: ...atanappropriatewastedisposalfacilityattheendof itsusefulservicelife Youwillfindadditionalinformationonanindividualreturningoftheoldappli ances under www funkwerk ec com 2009 Funkwerk Enterprise Commun...

Страница 3: ...DHCP Recommended configuration Default setting 9 Things to note for this configuration 9 AddressassignmentwithoutDHCP set mixedIPaddresses 11 Things to note for this configuration 12 LAN Client PC Con...

Страница 4: ...Realplayer Filter 28 Mediaplayer Filter 28 Filter update 28 2...

Страница 5: ...erouter AllLANclientsthatarelinkedareintegratedintothelocalnetworkviatheTCP IPproto col Further PCs can be linked to your network via RAS access Here the IP address is always assigned by the telephone...

Страница 6: ...in your list fall back When anInternetconnectionis terminated the first ISP in the list is usedwhen the next connectionattempt is initi ally carried out Note For more information about configuring ISP...

Страница 7: ...nwhichtherouterisintegra ted The router DHCP must be de activated in the configuration for this Default setting of the PABX Default IP addresses for the local area network In its basic setting you can...

Страница 8: ...within thesameIPnetwork APCwiththeIPaddress192 168 2 1islocatedinadifferentnetwork APCfromthePABXnet would not be able to locate this other PC if it is not within its own network In addition the same...

Страница 9: ...ox or cell phone without a B channel of the telephone system being allocated Normal call distribution OneBchannelisde activatedandthecallsignaledatthesubscriberenteredunder Callallocation forthe Exter...

Страница 10: ...tomaticallyinformyourDynamicDNS provider ofyourcurrentdynamicIPaddresseach timeaconnectionissetupwith theInternet TheinformationabouttheIPaddressistransferredafterset tingupanewInternetconnection aswe...

Страница 11: ...xternal access is provided with user name and password protection If the call is made from an external location only the phone number can also be monitored as an added protection feature Access can be...

Страница 12: ...inthePABXsystem YoucanthenmanuallysetupaconnectiontotheInternetviatheControlCenterandthe results for this connection are then displayed after a few seconds No actual Internet connection is established...

Страница 13: ...ettings for address assignment via DHCP If other means of Internet connection for example modem or an ISDN card have already been configured on the LAN client PC observe the information given in the s...

Страница 14: ...ControlPanelfromtheWindowsStartMenu UnderWindows2000 openthefolder NetworkandDial up Connections UnderWindowsXPopenthefolder Networkconnections Selectthe LANConnection forthePABXbypressingtherightmous...

Страница 15: ...omatically via DHCP Intheexamplegivenhere theIPaddressesfortheclients PCs canliewithinarangefromIP192 168 1 50to192 168 1 69 TheIPaddressesareassignedintheorderthattheclients PCs requestthem forexampl...

Страница 16: ...You must make the following minimum settings manually IPaddressfortheLANclient PC Netmask Subnetmask whichisalsoenteredinthePABXrouter IPaddressofthePABXsystemasthegateway interfacetoothernetworks fo...

Страница 17: ...h setaddressassignmentonthefollowing pages Confirm yoursettingsbyclickingOK Example Windows 2000 and Windows XP OpentheControlPanelfromtheWindowsStartMenu UnderWindows2000 openthefolder NetworkandDial...

Страница 18: ...8 1 91 Gateway 192 168 1 250 DNSserver 192 168 1 250 Subnetmask 255 255 255 0 PC2 FixedIP 192 168 1 93 Gateway 192 168 1 250 DNSserver 192 168 1 250 Subnetmask 255 255 255 0 PC3 IPviaDHCP 192 168 1 50...

Страница 19: ...DHCP server is off NumberofDHCPaddresses DHCP server is off PC1 FixedIP 192 168 1 81 Gateway 192 168 1 250 DNSserver 192 168 1 250 Subnetmask 255 255 255 0 PC3 FixedIP 192 168 1 83 Gateway 192 168 1 2...

Страница 20: ...ave beenconfiguredcorrectlyinyourPC seePagein section SettingsimInternetExplorer InternetoptionenofWindows Ifyouhavemadethesettingsasdescribedabove thetelephonesystemwill establishaconnectiontotheIn t...

Страница 21: ...ngefrom192 168 1 50 to 192 168 69 Whenthesevaluesaredisplayed thenetworkadapterandtheWindowsnetworksettingshave beenconfiguredcorrectly Should theprogram Winipcfg showothervalues clickthebuttons Enabl...

Страница 22: ...lueforthephysicaladdressisdifferent foreachnetworkadapter Thevaluesfortheleasedependon whenthePCisswitchedon If other data are shown this may be due to the following reasons Changeshavealreadybeenmade...

Страница 23: ...rent foreachnetworkadapter Thevaluesfortheleasedependon whenthePCisswitchedon If other data continues to be shown this may be due to the following reasons Changeshavealreadybeenmadetotheinitial settin...

Страница 24: ...ystem s Configurator Internet Explorer settings Windows Internet options ThefollowingdescriptionillustratesthesettingsforInternetconnectionsforthevariousoperatingsystems Proceed as described below for...

Страница 25: ...Configuring Internet access on a PC Checking the TCP IP Configuration 21...

Страница 26: ...s of data security and are an ideal compliment to one another but can not replace one another To configure self defined filters click the button New or change an existing entry in the filter list by d...

Страница 27: ...s located in the same IP subnetwork as the WAN port This parameter is currently not used and will not be significant for future software updates You can configure the following parameters Nameofthefil...

Страница 28: ...the WAN address of the PABX system Configuration example for a portmapping entry into the firewall for the ssh protocol Thesshprotocol secureshell isusedamongother thingsfor webserveradministration o...

Страница 29: ...ileges in exchange networks using port mapping by your telephone system router enter the name of the appli cation and the terms port and firewall in an Internet search engine configuration instruction...

Страница 30: ...that a large region of the firewall be enabled Outgoingconnectionsatports20and21andincomingonesfromtheseportstonon privilegedportsareenabled Passive FTP Filter This filter permits file transfer via FT...

Страница 31: ...incoming packets from that port to non privileged ports TELNET Filter ThisfilterpermitstheuseofthetelnetserviceprogrammeatcomputersintheInternetbyenablingpacketstoport23 for outgoing connections and i...

Страница 32: ...r Wizard operates using a descriptive file that you can easily update without necessarily having to update the software in your PABX your router or PC Check at regular intervals whether new descriptio...

Страница 33: ...beforethisbuttonisactivated Thebutton Help islocatedintheconfigurationbranch Network Filters Thetextthatisdisplayedwhenyouclickthisbuttonistakendirectlyfromthefile Filter_Info txt allowing the Help f...

Страница 34: ...S 6 Dynamic ISDN 4 Dynamic ISDN for outgoing calls 5 F Fallback 4 Filter Wizard 25 26 27 Firewall 6 I Internet Explorer settings 20 Internet options of Windows 20 Internet connections 1 IP address all...

Страница 35: ...31...

Страница 36: ...cations GmbH S dwestpark 94 D 90449 N rnberg 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 modi...

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