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Internet Protocol Journal

 is a quarterly journal published by Cisco Systems for engineering professionals involved in 

designing, developing, and operating public and private internets and intranets. You can access the Internet Protocol Journal 
at this URL:

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Summary of Contents for 1760 - VPN Bundle Router

Page 1: ...in a Rack 5 Installing WIC VIC Cards 6 Connecting the Router to Your Local Network 7 Connect Power and Verify Installation 8 Connect a PC to the Router Console Port 9 Perform Initial Configuration 10 Use the CLI to Configure VoIP 11 Obtaining Documentation 12 Documentation Feedback 13 Cisco Product Security Overview 14 Obtaining Technical Assistance 15 Obtaining Additional Publications and Informa...

Page 2: ...crobat Reader to view and print PDF files You can download the reader from Adobe s website http www adobe com 3 To read translated and localized warranty information about your product follow these steps a Enter this part number in the Warranty Document Number field 78 10747 01C0 b Select the language in which you would like to view the document c Click Go The Cisco warranty page appears d Read th...

Page 3: ...ets Product documentation 4 Mounting the Router in a Rack Warning To prevent bodily injury when mounting or servicing this unit in a rack you must take special precautions to ensure that the system remains stable The following guidelines are provided to ensure your safety This unit should be mounted at the bottom of the rack if it is the only unit in the rack When mounting this unit in a partially...

Page 4: ...tach each bracket according to the following guidelines For a 19 inch rack use the supplied number 8 Phillips flat head screws to attach the long side of the bracket to the router For a 24 inch rack use the supplied number 8 Phillips truss head screws to attach the short side of the bracket to the router Figure 2 shows how to attach brackets to the two sides of the router with the front panel forw...

Page 5: ...ching the cable guide to prevent the cables from obscuring the front panel of the router and the other devices installed in the rack If the router is in a 19 inch or 24 inch rack use the supplied black screw as shown in Figure 4 to attach the cable guide to the left or right bracket PVDM0 OK OK PWR 1 0 SLOT0 OK PVDM1 OK MOD OK 1 0 SLOT1 OK Phillips truss head screws 24 Configuration 60943 Cisco 17...

Page 6: ...outer To see translated versions of these warnings refer to the Regulatory Compliance and Safety Information for the Cisco 1700 Routers document that came with the router Warning Before working on a system that has an on off switch turn off the power and unplug the power cord Warning Only trained and qualified personnel should be allowed to install or replace this equipment Warning Before working ...

Page 7: ...r You should be able to loosen the screws using your fingers however if the screws are very tight you may need to use a Phillips screwdriver Step 3 Remove the metal plate that covers the card slot Step 4 Hold the card by the edges on either side of the card front panel and line up the card edges with the guides inside the card slot as shown in Figure 6 Figure 6 Inserting a WIC or VIC in the Router...

Page 8: ...ows Slot 1 1 0 and 1 1 Slot 2 2 0 and 2 1 Figure 7 shows the Cisco 1760 router front panel and slot numbering Figure 7 Cisco 1760 Router Front Panel 6 Connecting the Router to Your Local Network The router is connected to your local Ethernet network through the yellow 10 100 Ethernet port You must provide the following items for this connection A straight through RJ 45 to RJ 45 Ethernet cable A 10...

Page 9: ... the wrong port can damage your router Follow these steps to connect the router to your local network Step 1 Connect one end of the Ethernet cable to the yellow Ethernet port labeled 10 100 Mbps Ethernet port as shown in Figure 8 Figure 8 Connecting the Router to the Local Network Step 2 Connect the other end of the Ethernet cable to a network port on the hub or switch 7 Connect Power and Verify I...

Page 10: ...ncertain that suitable grounding is available Follow these steps to connect power to the router and to turn the router on Step 1 Connect the separate power cord to the power socket on the rear panel as shown in Figure 9 Figure 9 Connecting the Power Supply Step 2 Connect the other end of the separate power cord to a power outlet Step 3 Turn the power switch to on Step 4 Verify that you have correc...

Page 11: ...ages begin to appear in your terminal emulation program window Caution Do not press any keys on the keyboard until the messages stop Any keys pressed during this time are interpreted as the first command typed when the messages stop which might cause the router to power off and start over It will take a few minutes for the messages to stop If you see the following messages the router has booted wi...

Page 12: ... Cisco Router and Security Device Manager If the following messages appear at the end of the startup sequence Cisco Router and Security Device Manager SDM is installed on your router yourname con0 is now available Press RETURN to get started For instructions on configuring your router by using SDM refer to the Cisco Router and Security Device Manager SDM Quick Start Guide that shipped with your ro...

Page 13: ...ble configuration procedures in the Cisco 1700 Router Software Configuration Guide documentation at the following URL http www cisco com univercd cc td doc product access acs_mod 1800 sw index htm Step 6 Verify the initial configuration See the Verifying the Initial Configuration section on page 13 for verification procedures Verifying the Initial Configuration To verify that the new interfaces ar...

Page 14: ...n process and also when you finish configuring the router Cisco IOS software uses two configuration files startup config and running config The startup config file is a backup file that has all the information you specified about the router interfaces The startup config file is used by the router on the next restart The running config file has the current operating configuration with the changes y...

Page 15: ...rn commands as in the following example Router config dial peer voice 401 pots Router config dial peer destination pattern 14085553737 Router config dial peer port 0 0 The destination pattern command defines the telephone number associated with the POTS dial peer The port command associates the POTS dial peer with a specific logical dial interface normally the voice port connecting your router to ...

Page 16: ...tion Router show num exp dialed number After you have configured dial peers and assigned destination patterns to them you can use the show dialplan number command to see how a telephone number maps to a dial peer Router show dialplan number dialed number Note You must still configure each telephone number in full on a local dial peer so that the router can find the voice port to which it belongs C...

Page 17: ...orts can carry two voice calls one over each ISDN B channel for a total of four calls per ISDN BRI card At present the ISDN BRI VIC does not support ISDN devices such as digital telephone fax or modem Figure 11 shows a typical VIC Figure 11 Voice Interface Card You should install and cable the VICs before you perform the software configuration tasks that follow Configuring FXS Interfaces This sect...

Page 18: ...usion with telephone numbers Dial peer tags are arbitrary integers that can range from 1 to 231 1 2147483647 Within the allowed range you can choose any dial peer tag that is convenient or that makes sense to you Dial peers on the same router must have unique tags but you can reuse the tags on other routers Table 3 assigns a dial peer tag to each telephone number and its associated voice port on t...

Page 19: ...uts the prefix 1 used in the United States to indicate a long distance number and an area code in front of the remaining numbers to complete the destination pattern You need to include similar codes for your country if the VoIP equipment needs to establish a connection to the Public Switched Telephone Network PSTN Note The Cisco IOS software does not check the validity of the telephone number It a...

Page 20: ...elephones connected to the same router You can also use the show dial peer voice command to verify that the data that you configured is correct Note If the voice port is off line use the interface configuration no shutdown command at the config voice port prompt to enable it Calling Between Routers To enable the West and East offices to send voice traffic to each other over the same IP network the...

Page 21: ... addresses shown in this guide are meant only as examples When you configure your network be sure to use your own IP addresses Enter the following information on the West router to create the dial peer configuration given in Table 6 West config dial peer voice 501 voip West config dial peer destination pattern 1919555 West config dial peer session target ipv4 192 168 11 3 Cisco IOS software descri...

Page 22: ...sion target ipv4 192 168 19 27 These commands are summarized in Figure 18 Figure 18 East Router Configured for Remote Dial Peers Other Routers on the Network If the path between the endpoints of a voice call travels through intermediate routers configure those routers for VoIP traffic as described in the Configuring FXS Interfaces section on page 17 You need to configure POTS or VoIP dial peers on...

Page 23: ...ation pattern refers to outgoing calls and you can include wildcards in it because the PSTN performs the switching The VoIP feature can also remove digits that you do not want to send to the PSTN For instance to dial 9 to reach an outside line that is the analog PSTN enter the following commands West enable Password West configure terminal West config dial peer voice 201 pots West config dial peer...

Page 24: ...n use E M VICs to connect the PBXs over an IP network Figure 20 shows a company with two offices West and East Each office has a PBX to operate its internal telephone network and the IP network carries voice traffic between the offices Each PBX connects to an E M VIC port in the router Figure 20 Linking PBXs over the IP Network Local Dial Peers To configure E M voice ports use the following comman...

Page 25: ...919555 West config dial peer session target ipv4 192 168 11 3 West config dial peer exit West config Figure 21 Linking PBXs over the IP Network Remote Dial Peers Now configure number expansion so that numbers beginning with 5 belonging to the East office and sent by the West PBX to the West router are expanded into the full destination pattern West config num exp 5 1919555 Note You do not need to ...

Page 26: ...ce calls from a telephone served by one PBX to a telephone served by the other PBX using just the extension if you configured number expansion If you have trouble placing calls ping the remote router to make sure you have IP connectivity Note See the Configuring Quality of Service section on page 31 if you need to improve the quality of voice connections Configuring ISDN BRI NT TE Interfaces The I...

Page 27: ...onfigurations of Layer 1 and Layer 2 are independent of each other For example you can set the Layer 1 operating mode to NT and set the Layer 2 to TE Turning the Line Power On Off To control the line power phantom power only being supplied to a connected device use the line_power command in interface configuration mode line_power no line_power The line_power and no line_power commands are valid on...

Page 28: ...face Step 5 router config if isdn incoming voice voice modem data Configure this port for incoming calls Step 6 router config if shutdown router config if isdn layer1 emulate user network router config if no shutdown Shut down the interface Then configure the Layer 1 port mode and clock settings Enter user to configure the port as TE to function as a clock slave This is the default Enter network t...

Page 29: ...ture is configured a voice enabled Cisco router can receive calls from a DID trunk and connect them to the appropriate extensions The DID feature makes it seem that all extensions on a PBX have direct lines to the PSTN This is accomplished without the expense associated with connecting each extension to the PSTN Besides saving the cost of an operator DID lets callers feel that they are calling spe...

Page 30: ...rt configuration enter the show voice port command You can specify a voice port or view the status of all configured voice ports In the following example the specified port is configured for DID Router show voice port 1 0 Foreign Exchange Station with Direct Inward Dialing FXS DID 1 0 Slot is 1 Port is 0 Type of VoicePort is DID IN Operation State is DORMANT Administrative State is UP No Interface...

Page 31: ...lutions Configuration Guide Release 12 2 or later Voice traffic is much more sensitive to timing variations than data traffic For good voice performance you need to configure your data network so that voice packets are not lost or delayed To achieve the level of network performance needed for VoIP connections use the following features to improve QoS IP Precedence Low Latency Queuing Multilink PPP...

Page 32: ...ueued giving delay sensitive data preferential treatment over other traffic This reduces jitter in voice conversations Configuring LLQ Ensure that the voice and data packets have different IP precedence values This will allow the router to differentiate between them Normally data packets should have an IP precedence of 0 while voice packets should have an IP precedence of 5 If the VoIP packets are...

Page 33: ...multilink interleave Optionally configure a maximum fragment delay Router config if ppp multilink fragment delay milliseconds You can also reserve a special queue for real time packet flows to specified destination User Datagram Protocol UDP ports allowing real time traffic to have higher priority than other flows You need the following command only if you have not configured RSVP Router config if...

Page 34: ...outer config if ip address 192 168 19 0 255 0 0 0 Router config if ip rsvp bandwidth 48 48 RTP header compression Configure RTP header compression on the subinterfaces to minimize the size of the voice packet See the Real Time Transport Protocol Header Compression section on page 33 The following command configures RTP header compression on the selected subinterface Router config if frame relay ip...

Page 35: ...Ordering tool http www cisco com en US partner ordering Nonregistered Cisco com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters California USA at 408 526 7208 or elsewhere in North America by calling 1 800 553 NETS 6387 12 Documentation Feedback You can send comments about technical documentation to bug doc cisco com You can subm...

Page 36: ...technical assistance The Cisco Technical Support Website on Cisco com features extensive online support resources In addition Cisco Technical Assistance Center TAC engineers provide telephone support If you do not hold a valid Cisco service contract contact your reseller Cisco Technical Support Website The Cisco Technical Support Website provides online documents and tools for troubleshooting and ...

Page 37: ...erity 3 S3 Operational performance of your network is impaired but most business operations remain functional You and Cisco will commit resources during normal business hours to restore service to satisfactory levels Severity 4 S4 You require information or assistance with Cisco product capabilities installation or configuration There is little or no effect on your business operations 15 Obtaining...

Page 38: ...nvolved in designing developing and operating public and private internets and intranets You can access the Internet Protocol Journal at this URL http www cisco com ipj World class networking training is available from Cisco You can view current offerings at this URL http www cisco com en US learning index html ...

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