Table Of Contents
Cisco 1760 Modular Access Router Cabling and Installation
Cisco One-Year Limited Hardware Warranty Terms
Attaching Brackets to the Router
Attaching Brackets to the Rack
Attaching the Optional Cable Guide
Connecting the Router to Your Local Network
Connect Power and Verify Installation
Connect a PC to the Router Console Port
Initial Configuration Using Cisco Router and Security Device Manager
Initial Configuration Using Cisco CLI—Manual Configuration
Verifying the Initial Configuration
Information for International Users
Configuring the Fast Ethernet Interface
Wildcards and Number Expansion
Configuring Voice Interface Cards
Configuring ISDN BRI NT/TE Interfaces
Configuring Quality of Service
Multilink PPP with Link Fragmentation Interleave
Real-Time Transport Protocol Header Compression
Frame Relay Configuration for VoIP
Cisco Product Security Overview
Reporting Security Problems in Cisco Products
Obtaining Technical Assistance
Cisco Technical Support Website
Definitions of Service Request Severity
Obtaining Additional Publications and Information
Quick Start Guide
Cisco 1760 Modular Access Router Cabling and Installation
INCLUDING LICENSE AND WARRANTY1 Cisco One-Year Limited Hardware Warranty Terms
There are special terms applicable to your hardware warranty and various services that you can use during the warranty period. Your formal Warranty Statement, including the warranties and license agreements applicable to Cisco software, is available on Cisco.com. Follow these steps to access and download the Cisco Information Packet and your warranty and license agreements from Cisco.com.
1.
Launch your browser, and go to this URL:
http://www.cisco.com/univercd/cc/td/doc/es_inpck/cetrans.htm
The Warranties and License Agreements page appears.
2.
a.
b.
c.
The Cisco Limited Warranty and Software License page from the Information Packet appears.
d.
Note
3.
a.
78-10747-01C0
b.
c.
The Cisco warranty page appears.
d.
You can also contact the Cisco service and support website for assistance:
http://www.cisco.com/public/Support_root.shtml.
Duration of Hardware Warranty
One (1) Year
Replacement, Repair, or Refund Policy for Hardware
Cisco or its service center will use commercially reasonable efforts to ship a replacement part within ten (10) working days after receipt of a Return Materials Authorization (RMA) request. Actual delivery times can vary, depending on the customer location.
Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.
To Receive a Return Materials Authorization (RMA) Number
Contact the company from whom you purchased the product. If you purchased the product directly from Cisco, contact your Cisco Sales and Service Representative.
Complete the information below, and keep it for reference.
Company product purchased from
Company telephone number
Product model number
Product serial number
Maintenance contract number
2 Overview
This document describes the hardware installation and software configuration steps necessary to install your Cisco 1760 modular access router with its complement of WAN interface cards (WICs) and voice interface cards (VICs). Additional documentation can be found on Cisco.com.
Product Serial Number Location
The serial number label for Cisco 1760 router is located on the rear of the chassis, in the lower right-hand corner.
3 Parts List
Your router package should include the following items:
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4 Mounting the Router in a Rack
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The rack-mounting brackets supplied with the router can be attached to a 19- or 24-inch rack. Figure 1 shows the bracket mounting points that attach to the rack.
Figure 1 Bracket Mounting Points
To install the router in a 19-inch or a 24-inch standard rack, follow the instructions described in these procedures:
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Attaching Brackets to the Router
The bracket orientation and the screws you use depend on whether you are attaching the brackets for a 19-inch or a 24-inch rack. Use two of the supplied screws to attach each bracket, according to the following guidelines:
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Figure 2 shows how to attach brackets to the two sides of the router with the front panel forward.
Figure 2 Attaching Brackets for 19- and 24-Inch Racks
Attaching Brackets to the Rack
After the brackets are attached to the router, use the four supplied number-12 Phillips machine screws to securely attach the brackets to the rack, as shown in Figure 3.
Caution
Figure 3 Attaching Brackets to the Rack
Attaching the Optional Cable Guide
Cisco recommends attaching 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.
Figure 4 Attaching the Cable Guide to the Router
5 Installing WIC/VIC Cards
The router has four card slots that hold Cisco WICs and VICs. Either one or two WICs may be installed, with the remaining slots holding VICs, as desired. If no WICs are present in the slots, up to four VICs may be installed. Each WIC has one or two WAN ports, and each VIC has two or more voice ports. This section describes the procedure for installing a WIC or a VIC in the router.
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Safety Information
This section lists safety warnings that you should be aware of before installing WICs or VICs in the router. 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
Warning
Warning
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Caution
Card Installation
Follow these steps to insert a card in the router:
Step 1
Caution
Step 2
Figure 5 Removing a WIC or VIC Slot Cover
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
Step 4
Figure 6 Inserting a WIC or VIC in the Router
Step 5
Note
Step 6
Voice Port Verification
When the router is connected to a PC and you are running the command-line interface, as described in the "Connect a PC to the Router Console Port" section, you can enter the show voice port command to identify the port numbers of voice interfaces installed in your router:
Router# show voice port slot-number/port-numberAs an example of voice port numbering, if you install VICs in both slot 1 and slot 2 of the router, the ports in each of these slots would be numbered as follows:
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:
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Warning
Caution
Follow these steps to connect the router to your local network:
Step 1
Figure 8 Connecting the Router to the Local Network
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7 Connect Power and Verify Installation
Read the following warnings before connecting the power to the router.
Warning
Warning
Warning
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Warning
Follow these steps to connect power to the router and to turn the router on:
Step 1
Figure 9 Connecting the Power Supply
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Step 4
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8 Connect a PC to the Router Console Port
Connect a PC to the router's console port and establish a console session to view startup messages and verify voice card installation. Follow these steps to connect the router to a terminal or PC:
Step 1
Figure 10 Connecting the Console Cable to the Router
Step 2
Step 3
Startup messages begin to appear in your terminal emulation program window.
Caution
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yourname con0 is now availablePress RETURN to get started.See the "Initial Configuration Using Cisco Router and Security Device Manager" section to learn how to configure your router using SDM or to learn how to obtain SDM and install it on your router.
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--- System Configuration Dialog ---At any point you may enter a question mark '?' for help.Use ctrl-c to abort configuration dialog at any prompt.Default settings are in square brackets '[]'.Would you like to enter the initial configuration dialog? [yes/no]:To learn how to use the CLI to configure the router, see the "Initial Configuration Using Cisco CLI—Manual Configuration" section.
9 Perform Initial Configuration
You can configure your router by using one of the following tools:
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Initial Configuration Using 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 availablePress 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 router.
Tip
http://www.cisco.com/pcgi-bin/tablebuild.pl/sdm
To obtain the SDM quick start guide, SDM release notes, and other SDM documentation, go to www.cisco.com/go/sdm and click the Technical Documentation link.
Initial Configuration Using Cisco CLI—Manual Configuration
This section shows how to display a command-line interface (CLI) prompt for configuration using the CLI, and it directs you to documentation for the CLI configuration.
You can use the CLI if the following messages appear at the end of the startup sequence:
--- System Configuration Dialog ---At any point you may enter a question mark '?' for help.Use ctrl-c to abort configuration dialog at any prompt.Default settings are in square brackets '[]'.Would you like to enter the initial configuration dialog? [yes/no]:If these messages do not appear, SDM and a default configuration file were installed on the router at the factory. To use SDM to configure the router, see the "Initial Configuration Using Cisco Router and Security Device Manager" section.
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Step 1
Would you like to enter the initial configuration dialog? [yes/no]: noStep 2
Would you like to terminate autoinstall? [yes] ReturnSeveral messages appear, ending with a line similar to the following:
Copyright (c) 1986-2000 by cisco Systems, Inc.Compiled <date> <time> by <person>Step 3
...flashfs[4]: Initialization complete.Router>Step 4
Router> enableRouter#Step 5
Step 6
Verifying the Initial Configuration
To verify that the new interfaces are operating correctly, perform the following tests:
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Router# show voice port slot-number/port-numberAs an example of voice port numbering, if you installed VICs in both slot 1 and slot 2 of the router, the ports in each of these slots would be numbered as follows:
Slot 1—1/0 and 1/1
Slot 2—2/0 and 2/1
When you have completed and verified the initial configuration, your Cisco router is ready to configure for specific functions. Configuring the Router Using the Cisco IOS CLI
10 Use the CLI to Configure VoIP
The following sections explain how to set up basic VoIP configurations using the Cisco IOS command line interface (CLI).
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Information for International Users
International users must set the values of certain voice-port commands, such as cptone, that are specific to their country. Refer to the Cisco 1751 Router Software Configuration Guide, available on Cisco.com, for details.
The rest of this guide explains how to configure your router for VoIP traffic.
Saving the Configuration
You must save the new configuration to nonvolatile RAM (NVRAM) periodically during the configuration 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 you have just made. You can make any changes to the running-config file; however, these changes will be lost when the router powers down. To make these changes permanent, copy the running-config file to the startup-config file stored in NVRAM.
Follow these steps for each router to write the new configuration to NVRAM:
Step 1
Step 2
Router# show startup-configStep 3
Router# show running-configStep 4
Router# copy running-config startup-configBuilding configuration. . .[OK]Router#The router is now configured to start in the new configuration.
Configuring the Fast Ethernet Interface
To configure the Fast Ethernet interface, follow these steps, beginning in global configuration mode:
Configuring a Dial Plan
Use a dial plan to map the destination telephone numbers with the voice ports on the router. In North America, the North American Numbering Plan (NANP) is used, which consists of an area code, an office code, and a station code. Area codes are assigned geographically, office codes are assigned to specific switches, and station codes identify specific ports on each switch. The format in North America is 1Nxx-Nxx-xxxx, with N = digits 2 through 9 and x = digits 0 through 9. Internationally, each country is assigned a one- to three-digit country code; the country's dialing plan follows the country code.
In corporate environments, VoIP can be configured to recognize extension numbers and expand them into their full E.164 (international public telecommunications numbering plan) dialed numbers by using two commands in tandem: destination-pattern and num-exp. Before you configure these two commands, map individual telephone extensions with their full E.164 dialed numbers. You can do this easily by creating a number expansion table.
For Cisco voice implementations, three types of dial peers are used to match a dialed number to either a local telephony port or a remote IP address:
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Router(config)# dial-peer voice 401 potsRouter(config-dial-peer)# destination-pattern 14085553737Router(config-dial-peer)# port 0/0The 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 the local POTS network.
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Router(config)# dial-peer voice 501 voipRouter(config-dial-peer)# destination-pattern 1919555....Router(config-dial-peer)# session target ipv4:192.168.11.3The destination-pattern command defines the telephone number associated with the VoIP dial peer. The session target command specifies a destination IP address for the VoIP dial peer.
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Router(config)# dial-peer voice 601 vofrRouter(config-dial-peer)# destination-pattern 14087677448Router(config-dial-peer)# session target serial 0/0 100The destination-pattern command defines the telephone number associated with the VoFR dial peer. The session target command specifies a destination DLCI for the VoFR dial peer.
Use the dial-peer voice command to define dial peers and to change to dial peer configuration mode. For examples, see the "Configuring FXS Interfaces" section, the "Configuring FXO Interfaces" section, and the "Configuring E&M Interfaces" section.
Wildcards and Number Expansion
Office PBXs are configured so that a user can dial a local call (within the same PBX) by dialing the extension only—for instance, the four-digit extension 3737, or the five-digit extension 53737—rather than dialing the full telephone number, 1 408 555-3737.
You can provide the same shortcut on a VoIP network by using the number-expansion (num-exp) command.
Router(config)# num-exp 5.... 1408555....This command tells the router to expand a particular sequence of dialed numbers into a complete telephone number (destination pattern) as shown in Table 1.
You can use a period (.) as a wildcard character representing a single digit in a telephone number.
You can use the show num-exp command to verify the number expansion information.
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]
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Configuring Voice Interface Cards
The router supports one to four Cisco VICs. Each VIC provides two ports. You need one VIC port for each voice connection.
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There are five types of VIC interfaces:
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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 section explains how to configure ports on FXS VICs that connect directly to a standard telephone, a fax machine, or a similar device.
Figure 12 shows a basic voice network. A small business uses a Cisco 1760 router (named West) to provide telephone and fax connections among employees in its office. Two of these telephones are connected to an FXS VIC port in the West router.
Figure 12 Basic Voice Network (West Router)
Note
(For information about port numbering, see the "Voice Port Verification" section.)
Table 2 West Router Telephone Numbers and Voice Ports
408 555-3737
0/0
408 555-4141
0/1
Note
Local Dial Peers
To route a received voice call to the right destination, the router needs to know which telephone number belongs to each voice port. For instance, if a call comes in for 408 555-3737, the router needs to know that this telephone is connected to voice port 0/0 (as shown in Figure 12). In other words, the router needs to know the information in Table 2.
To hold this information, Cisco IOS software uses objects called dial peers. A telephone number, a voice port, and other call parameters are tied together by associating them all with the same dial peer. Configuring dial peers is similar to configuring static IP routes—you are telling the router what path to follow to route the call. All voice technologies use dial peers to define the characteristics associated with a call leg. A call leg is a segment of a call path, for instance, between a telephone and a router, a router and a network, a router and a PBX, or a router and the PSTN. Each call leg corresponds to a dial peer.
Dial peers are identified by numbers, but they are usually referred to as tags to avoid confusion 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 the West router. This type of dial peer is called a POTS dial peer or a local dial peer. The term POTS (plain old telephone service) means that the dial peer associates a physical voice port with a local telephone device. (Voice over IP, or VoIP, dial peers are explained in the "Calling Between Routers" section.)
Table 3 West Router Local Dial Peers
408 555-3737
0/0
401
408 555-4141
0/1
402
You should construct a table similar to Table 3 for your own routers, assigning your own telephone numbers and dial-peer tags.
Note
To configure the router with the dial-peer information in Table 3, enter the following global configuration commands:
West> enablePassword:West# configure terminalWest(config)# dial-peer voice 401 potsWest(config-dial-peer)# destination-pattern 14085553737West(config-dial-peer)# port 0/0West(config)# dial-peer voice 402 potsWest(config-dial-peer)# destination-pattern 14085554141West(config-dial-peer)# port 0/1West(config-dial-peer)# exitWest(config)#These commands are summarized in Figure 13.
Figure 13 West Router Configured for Local Dial Peers
The dial-peer command always takes the argument voice. The number following it is the dial-peer tag, and pots is the type of dial peer.
Cisco IOS software refers to a telephone number as a destination pattern because it is the destination for an incoming or outgoing call. Enter these numbers with the destination-pattern command. A destination pattern can include asterisks (*) and pound signs (#) from the telephone keypad, and commas (,) and periods (.), which have special meanings. Parentheses ( () ), hyphens (-), slashes (/), and spaces ( ), which are often used to make telephone numbers easier for humans to read, are not allowed.
Notice that the commands in the examples puts 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 business that owns the West router also has a branch office, called East. Figure 14 shows the East office network, and Table 4 lists the phone numbers, voice ports, and dial-peer tags for this office.
Figure 14 Basic Voice Network (East Router)
Table 4 East Router Local Dial Peers
919 555-8282
19195558282
1/0
901
919 555-9595
19195559595
1/1
902
Enter the following commands to configure the local ports on the East router with the dial-peer information in Table 4:
East(config)# dial-peer voice 901 potsEast(config-dial-peer)# destination-pattern 19195558282East(config-dial-peer)# port 1/0East(config)# dial-peer voice 902 potsEast(config-dial-peer)# destination-pattern 19195559595East(config-dial-peer)# port 1/1East(config-dial-peer)# exitEast(config)#These commands are summarized in Figure 15.
Figure 15 East Router Configured for Local Dial Peers
Checking the Local Dial Peer Configuration
If you configured POTS dial peers on your router by following these examples, you can place calls between telephones 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.
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Calling Between Routers
To enable the West and East offices to send voice traffic to each other over the same IP network they use for data traffic, use a WIC on each router to provide a connection to the IP network, as shown in Figure 16.
Figure 16 IP Connection Between Routers
Look at the connection between the West router and the IP network. This connection does not include a voice port or an attached telephone—it leads from a WAN interface to a remote destination somewhere on the IP network. IP routers can locate IP addresses on the network, but they cannot locate telephone numbers. To route an outgoing voice call over this connection, the West router must associate a telephone number in the East office with the IP address of the East router.
Table 5 assigns a dial-peer tag to each telephone number and its associated IP address on the West router. This type of dial peer is called a remote dial peer or VoIP dial peer. (Remember, the dial-peer tags are arbitrary.) A VoIP dial peer associates a telephone number with an IP address.
You can create a VoIP dial peer on the West router for every telephone on the East router, all associated with the same IP address. But it is much easier to use periods as wildcards, as shown in Table 6.
Table 6 West Router Remote Dial Peers with Wildcards
East
919 555-xxxx
1919555....
192.168.11.3
501
Construct a table similar to Table 6 for your own routers, assigning your own telephone numbers, IP addresses, and dial-peer tags.
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Enter the following information on the West router to create the dial-peer configuration given in Table 6:
West(config)# dial-peer voice 501 voipWest(config-dial-peer)# destination-pattern 1919555....West(config-dial-peer)# session target ipv4:192.168.11.3Cisco IOS software describes the remote network as the session target. This command is followed by the IP address of the remote router. The prefix ipv4 means IP version 4. Alternatively, you can use the prefix dns followed by the Domain Name System (DNS) name, as follows:
West(config-dial-peer)# session target dns:voice.eastrouter.comConfigure a dial peer on each router for each telephone number on every other router connected to it.
You can simplify this process by configuring number expansion for East router telephone numbers on the West router:
West(config)# num-exp 5.... 1919555....Now users can dial a five-digit extension beginning with 5 from a telephone on the West router to reach a telephone on the East router.
These commands are summarized in Figure 17.
Figure 17 West Router Configured for Remote Dial Peers
The West router is now configured to send calls to the East router.
Table 7 shows how to configure the East router to send calls to the West router.
Table 7 East Router Remote Dial Peers with Wildcards
West
408 555-xxxx
192.168.19.27
801
Enter the following information on the East router to create the dial-peer configuration given in Table 7:
East(config)# num-exp 5.... 1408555....East(config)# dial-peer voice 801 voipEast(config-dial-peer)# destination-pattern 1408555....East(config-dial-peer)# session target ipv4:192.168.19.27These 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.
You need to configure POTS or VoIP dial peers on an intermediate router only if that router also has voice devices attached to it.
Checking the Remote Dial Peer Configuration
If you configured VoIP dial peers on your router by following these examples, you can place calls from that router to telephones on the remote routers (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, or use the show dial-peer voice command to verify that the data you configured is correct.
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Configuring FXO Interfaces
FXO interfaces provide a gateway from the VoIP network to the analog PSTN or to a PBX that does not support E&M signaling so that users can reach telephones and fax machines outside the VoIP network. Figure 19 shows a typical FXO gateway attached to the West router.
Figure 19 FXO Gateway to PSTN
To create a POTS dial peer for an FXS interface as explained earlier, you enter the complete telephone number of the attached telephone as the destination pattern for incoming calls. However, to create a POTS dial peer for an FXO interface, the destination 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> enablePassword:West# configure terminalWest(config)# dial-peer voice 201 potsWest(config-dial-peer)# destination-pattern 9West(config-dial-peer)# port 1/0When you dial 9, the router makes a connection to the PSTN through voice port 1/0. The PSTN then provides a dial tone. Any digits you enter on the telephone thereafter are interpreted on the PSTN.
To enable East router users to make calls over the West router local PSTN, enter the following commands:
East(config)# dial-peer voice 701 voipEast(config-dial-peer)# destination-pattern 7East(config-dial-peer)# session target ipv4:192.168.19.27West(config)# dial-peer voice 601 potsWest(config-dial-peer)# destination-pattern 7West(config-dial-peer)# port 1/0When you dial 7 on the East router, the call is connected to the PSTN on the West router. The PSTN then provides a dial tone, and any digits you enter on the telephone thereafter are interpreted on the PSTN.
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Checking the FXO Configuration
If you configured your FXO interface according to the example described in the "Configuring FXO Interfaces" section, you can place outgoing calls over the PSTN. If you have trouble placing calls, use the show voice port command to make sure that the VIC is installed correctly. Use the show dial-peer voice command to make sure that the data you configured is correct, and test the PSTN by connecting a handset directly to the PSTN outlet and placing a call.
Guest
