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This release note describes the features and caveats for Cisco 700 software Release 4.3.1 and earlier. For complete documentation for Cisco 700 software, refer to the Cisco 700 Series Command Reference.
This release includes the following feature enhancements:
This document has the following sections:
Cisco 700 series router software Release 4.3.1 supports the following routers:
| Cisco 760 Series | Cisco 770 Series |
|---|---|
Cisco 761 | Cisco 771 |
Cisco 762 | Cisco 772 |
Cisco 765 | Cisco 775 |
Cisco 766 | Cisco 776 |
The following documentation is provided with your Cisco 700 series router:
The enhancements offered by Cisco 700 series router software Release 4.3.1 are described in this section.
Before software Release 4.3.1, Routing Information Protocol (RIP) updates contained the entire routing table and were sent periodically, using a large amount of bandwidth over low-speed lines such as dial-up interfaces and connection-oriented, packet-switched networks such as X.25. Using the Triggered extension to RIP, the router exchanges only the changed information through an incremental update, saving both bandwidth and CPU time. (Refer to RFC-2091, Triggered Extension to RIP to Support Demand Circuits for additional information.)
The set ip rip command includes a triggered option for triggered updates. For a complete description of the set ip rip command, refer to the Cisco 700 Series Router Command Reference.
SEt IP RIp UPdate PEriodic | DEmand | SNapshot | TRiggered | OFf
TRiggered | Enables Triggered extensions to IP RIP. |
OFf
System or profile mode
This feature does not support Netware RIP or Netware service access point (SAP).
The neighboring router must also support Triggered extensions to IP RIP on its interface. When Triggered RIP is enabled and the neighboring router does not respond to the packet, the router stops sending triggered updates.
If Triggered RIP is enabled at the system level, it is applied to the Internal profile.
The show ip conf all command shows the current routing table with Triggered RIP as an entry under the TX heading. Routes learned through Triggered RIP do not age out and display an age value of 0 in the output of the show ip route all command.
In the following example, Triggered RIP is enabled in the r1 profile.
Host>showiprouteall odc2:r1>shipco ProfileRoutingFrameIPAddressNetmaskRIPTXRXPropCost ------------------------------------------------------------------------------- r1ONIPCP192.22.1.1255.255.255.0V1TRIV1ON1 ProfilePATMulticastSummarizationNetbiosSpoofing/Left(min) ------------------------------------------------------------------ r1OFFOFFOFFOFF/0
There are two modes of operation in the Controller PAD (TPAD) implementation that respond to the enhanced point-of-sale system (EPOS), Verbose and Terse. In Verbose mode, the response is in strings, such as "CONNECT," "NO CARRIER," "BUSY," and so forth. In Terse mode the response is in numbers, such as 1 (CONNECT), 3 (DISCONNECT), 7 (BUSY), and so forth.
When the router is in TPAD mode, these responses are echoed to a terminal attached to the router serial port. Prior to software Release 4.3.1, the mode of operation was always verbose with echo on. This caused some interoperability problems with some EPOS systems provided by RIVA. Therefore, in software Release 4.3.1 a series of TPAD commands have been implemented to support RIVA functionality.
The attention (AT) commands are entered at the prompt on the TPAD terminal. (Refer to the set serial port command in the Cisco 700 Series Router Command Reference for information on converting a terminal to TPAD mode.)
ATV0 | Response strings display in Terse mode (as numbers). |
ATV1 | Response strings display in Verbose mode (as strings). |
ATE0 | Disable echoing commands. |
ATE1 | Enable echoing commands (default). |
ATP | Pulse dial prefix. |
ATDT | Tone dial prefix. |
AT&F | Force factory defaults. |
ATS7 |
ATV1
System mode
Multiple commands can be entered on a single line.
In software Release 4.3.1 the show tpad command has been enhanced to show more TPAD information. For example:
ios700> show tpad TPADSerialPortParity:NONE TPADEchoResponse:ON TPADResponseMode:VerboseMode TPADCarrierWaitTime:10seconds
Refer to the Cisco 700 Series Router Command Reference for complete information on the show tpad command.
Customers and Internet service providers (ISPs) in areas served by carriers providing flat-rate ISDN can have their lines connected permanently. This overrides any timeout and threshold parameters. It also allows the flexibility of having one or more channels permanently up.
Use the set link permanent command to enable permanent connections.
SEt link PErmanent ON | OFf
link | Specifies channel 1, channel 2 or D, where the D channel has AO/DI configured. |
PErmanent | Specifies permanent mode of operation. |
ON | Enables Permanent mode. |
OFf | Disables Permanent mode. |
Off
Profile mode
Use the show conf command to show whether or not permanent mode is enabled for a link. For example:
ProfileParameters BridgingParameters BridgingON RoutedProtocolsIP LearnModeON PassthruOFF CallStartupParameters LineParameters LineSpeedAUTO NumberingPlanNORMAL CallParametersLink1Link2LinkD AutoONONOFF PermanentModeONOFFOFF CalledNumber BackupNumber
This feature is not dependent on the switch for permanent connections and can work on any switch type.
On power up, the router tries to bring up all permanent connections. If for any reason a connection gets disconnected, the router attempts to reconnect.
If permanent mode is specified for more than one link on a single profile, all links come up only if multilink PPP is configured. If the D channel is configured for permanent mode, it comes up only if no other B channels are active.
If the idling D channel configured for permanent mode is disconnected, it will not come up if any B channel is already connected, but only when the B channel call is discontinued. Permanent mode can be configured for three links only, two B channels and the D channel, across all profiles.
The permanent mode setting overrides only timeout and threshold parameters and not other events such as
These events cause the line to be disconnected, but in permanent mode the router attempts to restore the line immediately.
The following command establishes a permanent link through channel 1.
Host> set 1 permanent on
show demand
unset link permanent
To disable permanent connections and restore the parameters in the System profile, use the unset link permanent command.
UNSEt link PErmanentOff
Profile mode
The following command disconnects a permanent link through channel 1.
Host> unset 1 permanent
set link permanent
show demand
The router can accept and respond to CHAP challenges from multiple hosts. To receive CHAP challenges from hosts with different host names, use the set ppp chapallow multihost command.
SEt PPp CHAPAllow MUltihost ON | Off
ON | Receives CHAP challenges with different host names. |
Off | Rejects CHAP challenges with different host names. |
Off
System mode
This command should not be set to ON unless the CHAP challenges received by the router contain different host names and you do not consider this to be a security risk.
Use the show security command to display the settings the set ppp chapallow command status.
The following command sets the router to accept and respond to CHAP challenges from multiple hosts:
host> set ppp chapallow multihost on
show security
LZS Stac compression is enabled for Internet ready firmware images, which include X.25 images and non-X.25 images. All the compression commands previously available only in the Remote Office images are enabled in the Internet Ready images.
This section provides the latest information about Cisco 700 series router software Release 4.3.1 limitations. Each item includes the Cisco tracking number, if applicable, for your convenience.
Triggered RIP must be enabled on all routers to work correctly. If a Cisco 700 series router has Triggered RIP enabled and a Cisco IOS router has Triggered RIP disabled, the IOS router will not receive updates to the routing table because it will ignore the Triggered RIP packet. (CSCdk90315)
AO/DI is available only on one connection. Even if it is enabled on multiple profiles, only one profile at a time can use it. (no number available)
Multilink lost fragment detection level is overly strict when running multilink because of the possibility of out-of-order packets. This is most noticeable when there is only one link in the bundle and the peer continues to use multilink headers. The workaround is to set the peer maximum transmission unit (MTU) to 1450 bytes to prevent fragmentation of layer-2 packets. This is a Cisco IOS limitation. (CSCdk36295)
A Cisco IOS router does not process PPP packets received on a link after it has sent a terminate-request (TERMREQ) even though it had not received a terminate-acknowledge (TERMACK) from the peer. This causes multilink fragments to be dropped prematurely and requires a reset. This is a Cisco IOS limitation. (CSCdk35787)
The Cisco 700 series router refuses to accept incoming calls. After receiving a set asynchronous balanced mode, extended (SABME) signal from the switch, if the next incoming call has the same call reference as the previous incoming call, the router ignores this setup in call control. Call control appears to have a call control block (CCB) with this call reference. Call control ignores this setup because it assumes that the switch has retransmitted the setup message. This CCB should have been deallocated when the SABME was received. (CSCdk55873)
Clickstart has been discontinued and support is no longer required. The set clickstart command has been removed.
This section provides the latest information about Cisco 700 series router software Release 4.3.1 caveats. Each item includes the Cisco tracking number, if applicable, for your convenience.
RIP updates keep the ISDN link up if the idle timeout is greater than the RIP timer value, even if the RIP option is linkup. However, it does not cause the link to come up by itself. To correct the problem, use a filter for RIP traffic with the ignore option in the WAN profile. (no number available)
To use triggered RIP on the Cisco 700 series router, the peer router also must be configured for triggered RIP. Triggered RIP will be available in Cisco IOS version 12.03T approximately 3/1/99 (CSCdk63410) and Cisco IOS version 12.04T approximately 4/26/99.
When using call waiting with an INS switch type, the busy tone is not produced. If one person is on hold and you are speaking to a second person, and that second person disconnects the call, the busy tone that normally alerts you to the waiting call is not heard. However, you can flash back to the person on hold by pressing the hook switch or the flash button. (CSCdk59152)
This section describes the applications supported by the Cisco 700 series router software Release 4.3.1.
The CiscoSecure Authentication Agent application (available for Windows 95 and Windows NT 4.0) simplifies the use of token authentication over ISDN. There are two modes: single authentication and double authentication.
The Cisco 700 series router operates in single authentication mode when Token Authentication Support (TAS) is enabled. The CiscoSecure Authentication Agent application is available on the Cisco Web site. See the "Cisco Connection Online" section in this document for more information.
Cisco 700 series router software Release 4.0(1) and higher supports the Cisco 700 Fast Step software. Cisco 700 Fast Step software simplifies the setup, configuration, and monitoring of Cisco 700 series routers.
Cisco 700 Fast Step software runs on Microsoft Windows 95, Windows 98, and Windows NT systems. It is provided with your router on the Cisco Fast Step CD-ROM. The application is also available on Cisco Connection Online. See the "Cisco Connection Online" section in this document for more information.
This section describes how to save the current configuration and update the router software image. The default image for Cisco 761, Cisco 765, Cisco 771, and Cisco 775 routers is NET3, IR. The default image for all other Cisco 700 series routers is US.
Images for software Release 4.0(1) and higher require 1.5 MB of dynamic RAM (DRAM) and 0.5 MB of Flash memory. If you do not have enough DRAM to support the software, the router does not boot. Refer to the "National ISDN Capability Packages" section for instructions on checking the amount of DRAM. Instructions for increasing the amount of DRAM are in the Cisco 700 Series Router Installation Guide.
X.25 images require 1.5 MB of DRAM and 1 MB of Flash memory. If you do not have enough Flash memory to run X.25 images, the router must be replaced with a Cisco 700M series router. The label on the bottom of the router identifies an M-series router. You can display the amount of Flash memory by using the version command. Refer to the Cisco 700 Series Router Command Reference for information about this command.
The following example saves the configuration to a file by using Terminal for Windows, a common terminal emulation software program:
Step 1 When the terminal emulation program is running, enter the upload command at the command-line prompt, but do not press Return after you enter the command:
Host> Upload
Step 2 From the Transfer menu, select Receive Text File.
Step 3 In the Receive Text dialog box, specify a filename to save the configuration in, and select the directory where you want to save the file.
Step 4 Click OK.
Step 5 Return to the terminal emulation program, and press Return to execute the command. The configuration is saved to the file specified in Step 3.
Step 6 Click Stop when the configuration has finished uploading. You are ready to download the software.
Select the image (filename) for your router. Table 1, Table 2, and Table 3 list the filename and memory required for each image. Images named C760 are for use with both Cisco 760 and Cisco 770 series routers.
| UNIX Filename | DOS Name | Description | Flash Memory Required | DRAM Required |
|---|---|---|---|---|
c760-in.b-US.43-1.bin | 80-2499-04 | C760/C770 Series Internet Ready Feature Set, United States 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.b-NET3.43-1.bin | 80-2501-04 | C760/C770 Series Internet Ready Feature Set, Europe 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.b-1TR6.43-1.bin | 80-2503-04 | C760/C770 Series Internet Ready Feature Set, Germany 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.b-TPH.43-1.bin | 80-2500-04 | C760/C770 Series Internet Ready Feature Set, Australia 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.b-INS.43-1.bin | 80-2502-04 | C760/C770 Series Internet Ready Feature Set, Japan 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.b-MLS.43-1.bin | 80-2502-04 | C760/C770 Series Internet Ready Feature Set, Japan 4.3(1) | 0.5 MB | 1.5 MB |
| 1Internet Ready images do not support IPX routing. |
| UNIX Filename | DOS Name | Description | Flash Memory Required | DRAM Required |
|---|---|---|---|---|
c760-in.r-US.43-1.bin | 80-2491-04 | C760/C770 Series Remote Office Feature Set, United States 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.r-NET3.43-1.bin | 80-2493-04 | C760/C770 Series Remote Office Feature Set, Europe 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.r-1TR6.43-1.bin | 80-2495-04 | C760/C770 Series Remote Office Feature Set, Germany 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.r-TPH.43-1.bin | 80-2492-04 | C760/C770 Series Remote Office Feature Set, Australia 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.r-INS.43-1.bin | 80-2494-04 | C760/C770 Series Remote Office Feature Set, Japan 4.3(1) | 0.5 MB | 1.5 MB |
c760-in.r-MLS.43-1.bin | 80-2494-04 | C760/C770 Series Remote Office Feature Set, Japan 4.3(1) | 0.5 MB | 1.5 MB |
| UNIX Filename | DOS Name | Description | Flash Memory Required | DRAM Required |
|---|---|---|---|---|
c760-in.bxd-US.43-1.bin | 80-2496-04 | C760/C770 Series X.25/B&D RO Feature Set, United States 4.3(1) | 1 MB | 1.5 MB |
c760-in.bxd-NET3.43-1.bin | 80-2498-04 | C760/C770 Series X.25/B&D Feature Set, Europe 4.3(1) | 1 MB | 1.5 MB |
c760-in.bxd-MLS.43-1.bin | 80-2497-04 | C760/C770 Series X.25/B&D Feature Set, Japan 4.3(1) | 1 MB | 1.5 MB |
c760-in.rxd-US.43-1.bin | 80-2496-04 | C760/C770 Series X.25/B&D RO Feature Set, United States 4.3(1) | 1 MB | 1.5 MB |
c760-in.rxd-NET3.43-1.bin | 80-2498-04 | C760/C770 Series X.25/B&D RO Feature Set, Europe 4.3(1) | 1 MB | 1.5 MB |
c760-in.rxd-MLS.43-1.bin | 80-2497-04 | C760/C770 Series X.25/B&D RO Feature Set, Japan 4.3(1) | 1 MB | 1.5 MB |
If you are loading software from a floppy disk, read and follow the swl (software load) command instructions in the Cisco 700 Series Router Command Reference. If you are loading software from a CD, read and follow the swl (software load) command instructions in the CD booklet.
The following example loads the configuration by using Terminal for Windows, a common terminal-emulation software program:
Step 1 From the terminal-emulation program, select Text Transfer from the Setting menu. The Text Transfer dialog box appears.
Step 2 Set flow control to Line at a Time, and set Delay Between Lines from 0.5 to 1 second.
Step 3 Click OK.
Step 4 From the Transfer menu, select Send Text File.
Step 5 Select the file to be loaded, such as the one you saved in Step 2 in the "Saving a Configuration" section.
Step 6 Click OK. The parameters are transferred to your router.
Step 7 If errors occur during the transfer, enter the set default command, increase the delay between lines, and repeat the procedure for loading the configuration, beginning with Step 1.
A capability package is a set of standardized BRI line features that simplifies the process of configuring an ISDN line. The capability package ordering codes described in this section apply to NI1.
Package S provides alternate voice and circuit-switched data with no additional features. When a minimum feature set is needed, Package S is the preferred NI1 capability package for Cisco 765, Cisco 766, Cisco 775, and Cisco 776 routers.
Package EZ-1 (also referred to as Capability Package U) provides alternate voice and circuit-switched data with all the features and capabilities of the router enabled. Package EZ-1 is the preferred NI1 capability package for the Cisco 765, Cisco 766, Cisco 775, and Cisco 776 routers. The features include flexible calling (conference calling, call transfer, hold and retrieve), ACO (call waiting), and Call Forward Busy (CFB).
If you have any problems with your NI1 provisioning, contact Cisco ISDN Support Services (United States only). To access this service or to obtain more information, call (800) 553-NETS (6387) and select the Customer Service option, or visit the Cisco ISDN web site at www.cisco.com/isdn.
When provisioning multiple directory numbers for a NI1, additional provisioning information that activates the distinctive ringing feature is available from Cisco ISDN Support Services; however, the flexible calling features (three-way conference calling call transfer, hold and retrieve) are not available.
ISDN Support Services are only available in the United States. To access this service or to obtain more information, call 800 553-NETS (6387) and select the Customer Service option, or visit the Cisco ISDN Web site at www.cisco.com/isdn.
Cisco Connection Online (CCO) is the Cisco primary, real-time support channel. Maintenance customers and partners can self-register on CCO to obtain additional information and services.
Available 24 hours a day, 7 days a week, CCO provides a wealth of standard and value-added services to Cisco's customers and business partners. CCO services include product information, product documentation, software updates, release notes, technical tips, the Bug Navigator, configuration notes, brochures, descriptions of service offerings, and download access to public and authorized files.
CCO serves a wide variety of users through two interfaces that are updated and enhanced simultaneously: a character-based version and a multimedia version that resides on the World Wide Web (WWW). The character-based CCO supports Zmodem, Kermit, Xmodem, FTP, and Internet e-mail, and it is excellent for quick access to information over lower bandwidths. The WWW version of CCO provides richly formatted documents with photographs, figures, graphics, and video, as well as hyperlinks to related information.
You can access CCO in the following ways:
For a copy of CCO's Frequently Asked Questions (FAQ), contact cco-help@cisco.com. For additional information, contact cco-team@cisco.com.
If you are a network administrator and need personal technical assistance with a Cisco product that is under warranty or covered by a maintenance contract, contact Cisco's Technical Assistance Center (TAC) at 800 553-2447, 408 526-7209, or tac@cisco.com. To obtain general information about Cisco Systems, Cisco products, or upgrades, contact 800 553-6387, 408 526-7208, or cs-rep@cisco.com.
Please use CCO to obtain general information about Cisco Systems, Cisco products, or upgrades. If CCO is not accessible, contact 800 553-6387, 408 526-7208, or cs-rep@cisco.com.
Posted: Wed Jun 30 16:59:46 PDT 1999
Copyright 1989-1999©Cisco Systems Inc.