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Cisco 4000 Series Integrated Services Routers Overview
 Note |
Cisco IOS XE 17.16.1a is the first release for Cisco 4000 Series Integrated Services Routers in the Cisco IOS XE 17.16.x release series. |
Note |
See the End-of-Sale and End-of-Life Announcement for the Cisco ISR4200, ISR4300 and select ISR4400 Series Platform page for information about the end-of-life milestones for the Cisco 4000 Series Integrated Service Routers. |
Note |
See the End-of-Sale and End-of-Life Announcement for the Cisco ISR4461 Series Platform page for information about the end-of-life milestones for the Cisco ISR4461 series platform. |
The Cisco 4000 Series ISRs are modular routers with LAN and WAN connections that can be configured by means of interface modules, including Cisco Enhanced Service Modules (SM-Xs), and Network Interface Modules (NIMs).
Note |
Starting with Cisco IOS XE Amsterdam 17.3.2 release, with the introduction of Smart Licensing Using Policy, even if you configure a hostname for a product instance or device, only the Unique Device Identifier (UDI) is displayed. This change in the display can be observed in all licensing utilities and user interfaces where the hostname was displayed in earlier releases. It does not affect any licensing functionality. There is no workaround for this limitation. The licensing utilities and user interfaces that are affected by this limitation include only the following:
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Product Field Notice
Cisco publishes Field Notices to notify customers and partners about significant issues in Cisco products that typically require an upgrade, workaround or other user action. For more information, see https://www.cisco.com/c/en/us/support/web/field-notice-overview.html.
We recommend that you review the field notices to determine whether your software or hardware platforms are affected. You can access the field notices from https://www.cisco.com/c/en/us/support/web/tsd-products-field-notice-summary.html#%7Etab-product-categories.
System Requirements
The following are the minimum system requirements:
Note |
There is no change in the system requirements from the earlier releases. |
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Memory: 4 GB DDR3 up to 32 GB
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Hard Drive: 200 GB or higher (Optional). The hard drive is only required for running services such as Cisco ISR-WAAS.
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Flash Storage: 4 GB to 32 GB
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NIMs and SM-Xs: Modules (Optional)
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NIM SSD (Optional)
For more information, see the Cisco 4000 Series ISRs Data Sheet.
Note |
For more information on the Cisco WAAS IOS-XE interoperability, see the WAAS Release Notes: https://www.cisco.com/c/en/us/support/routers/wide-area-application-services-waas-software/products-release-notes-list.html. |
Determining the Software Version
You can use the following commands to verify your software version:
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For a consolidated package, use the show version command
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For individual sub-packages, use the show version installed command
Upgrading to a New Software Release
To install or upgrade, obtain a Cisco IOS XE 17.16.x consolidated package (image) from Cisco.com. You can find software images at http://software.cisco.com/download/navigator.html. To run the router using individual sub-packages, you also must first download the consolidated package and extract the individual sub-packages from a consolidated package.
Note |
When you upgrade from one Cisco IOS XE release to another, you may see %Invalid IPV6 address error in the console log file. To rectify this error, enter global configuration mode, and re-enter the missing IPv6 alias commands and save the configuration. The commands will be persistent on subsequent reloads. |
For more information on upgrading the software, see the Installing the Software section of the Software Configuration Guide for the Cisco 4000 Series ISRs.
Recommended Firmware Versions
The following table lists the recommended ROMMON and CPLD versions for Cisco IOS XE 17.2.x onwards releases.
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Cisco 4000 Series ISRs |
Existing ROMMON |
Cisco Field-Programmable Devices |
CCO URL for the CPLD Image |
|---|---|---|---|
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Cisco 4461 ISR |
16.12(2r) |
21102941 |
|
|
Cisco 4451-X ISR |
16.12(2r) |
19042950 |
|
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Cisco 4431 ISR |
16.12(2r) |
19042950 |
|
|
Cisco 4351 ISR |
16.12(2r) |
19040541 |
|
|
Cisco 4331 ISR |
16.12(2r) |
19040541 |
|
|
Cisco 4321 ISR |
16.12(2r) |
19040541 |
|
|
Cisco 4221 ISR |
16.12(2r) |
19042420 |
Note |
Upgrading Field-Programmable Hardware Devices
The hardware-programmable firmware is upgraded when Cisco 4000 Series ISR contains an incompatible version of the hardware-programmable firmware. To do this upgrade, a hardware-programmable firmware package is released to customers.
Generally, an upgrade is necessary only when a system message indicates one of the field-programmable devices on the Cisco 4000 Series ISR needs an upgrade, or a Cisco technical support representative suggests an upgrade.
From Cisco IOS XE Release 3.10S onwards, you must upgrade the CPLD firmware to support the incompatible versions of the firmware on the Cisco 4000 Series ISR. For upgrade procedures, see the Upgrading Field-Programmable Hardware Devices for Cisco 4000 Series ISRs.
Feature Navigator
You can use Cisco Feature Navigator to find information about feature, platform, and software image support. To access Cisco Feature Navigator, go to https://cfnng.cisco.com/. An account on cisco.com is not required.
New and Changed Information
New and Changed Hardware Features
There are no new hardware features for this release.
New and Changed Software Features
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Feature |
Description |
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|---|---|---|---|
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Asymmetric Carrier Delay allows you to configure separate delay times for link-up and link-down event notification on physical interfaces. From Cisco IOS XE 17.16.1a, asymmetric carrier delay is supported on Cisco 4000 Series Integrated Services Routers. |
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From Cisco IOS XE 17.16.1a, you can configure source interfaces for High-Speed Logging (HSL) and SysLog for security logging in Cisco SD-WAN Manager. You can also enable HSL for your firewall messages, to allow a firewall to log records with minimum impact to packet processing. |
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Disablement of Weak SSH Algorithms |
From Cisco IOS XE 17.16.1a, the ssh-rsa algorithm isdisabled by default on port 22 to improve security. |
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| Enhanced Support for Binary Tracing |
From Cisco IOS XE 17.16.1a onwards, you can retrieve events sent to the IOS process in the binary trace using the show logging process IOS module nhrp command, without enabling DMVPN event tracing. |
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From Cisco IOS XE 17.16.1a, the output for the show cellular 0/x/0 connection command includes the following parameters:
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In Cisco IOS XE 17.16.1a, you can now monitor TCP and RTP traffic on DMVPN tunnels for IKEv2 traffic using Application Response Time (ART) monitor and Media monitor respectively. This functionality is only supported on DMVPN tunnels with IKEv2 encryption. |
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If you have configured crypto VPN solutions such as DMVPN, FlexVPN or Layer 3 VPNs on SD-Routing devices, you can use Cisco Catalyst SD-WAN Manager to visualize the VPN solution deployed in the network and observe the functioning of the devices using various states, stats, charts and events.Having high visibility into the network can help identify errors in real time therefore reducing the network downtime. |
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From Cisco IOS XE 17.16.1a, Cisco Catalyst SD-WAN Manager enables site-to-site speed tests to measure bandwidth between devices over DMVPN tunnels. These tests check upload speed from the source device to the destination, and measure download speed from destination to the source device. |
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When Cisco IOS-XE autonomous devices transition to Cisco SD-Routing mode, the Unified Threat Defense (UTD) Container Migration feature ensures that existing container functionalities are preserved. From Cisco IOS XE 17.16.1a you can detect, upgrade, and manage UTD Security Virtual Images through Cisco Catalyst SD-WAN Manager. For devices without pre-existing containers, you can also install and manage UTD images using policy groups. |
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CUBE Features |
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CUBE: Secure Communications Interoperability Protocol (SCIP) support in CUBE |
From Cisco IOS XE 17.16.1a onwards, support for Secure Communication Interoperability Protocol (SCIP) voice and video codec is available, that ensures secure traffic sessions between the endpoints.
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Configure the Router for Web User Interface
This section explains how to configure the router to access Web User Interface. Web User Interface requires the following basic configuration to connect to the router and manage it.
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An HTTP or HTTPs server must be enabled with local authentication.
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A local user account with privilege level 15 and accompanying password must be configured.
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Vty line with protocol SSH/Telnet must be enabled with local authentication. This is needed for interactive commands.
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For more information on how to configure the router for Web User Interface, see Cisco 4000 Series ISRs Software Configuration Guide, Cisco IOS XE 17.
Resolved and Open Bugs
This section provides information about the bugs in Cisco 4000 Series Integrated Services Routers and describe unexpected behavior. Severity 1 bugs are the most serious bugs. Severity 2 bugs are less serious. Severity 3 bugs are moderate bugs. This section includes severity 1, severity 2, and selected severity 3 bugs.
The open and resolved bugs for this release are accessible through the Cisco Bug Search Tool. This web-based tool provides you with access to the Cisco bug tracking system, which maintains information about bugs and vulnerabilities in this product and other Cisco hardware and software products. Within the Cisco Bug Search Tool, each bug is given a unique identifier (ID) with a pattern of CSCxxNNNNN, where x is any letter (a-z) and N is any number (0-9). The bug IDs are frequently referenced in Cisco documentation, such as Security Advisories, Field Notices and other Cisco support documents. Technical Assistance Center (TAC) engineers or other Cisco staff can also provide you with the ID for a specific bug. The Cisco Bug Search Tool enables you to filter the bugs so that you only see those in which you are interested.
In addition to being able to search for a specific bug ID, or for all bugs in a product and release, you can filter the open and/or resolved bugs by one or more of the following criteria:
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Last modified date
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Status, such as fixed (resolved) or open
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Severity
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Support cases
You can save searches that you perform frequently. You can also bookmark the URL for a search and email the URL for those search results.
Note |
If the bug that you have requested cannot be displayed, this may be due to one or more of the following reasons: the bug ID does not exist, the bug does not have a customer-visible description yet, or the bug has been marked Cisco Confidential. |
Resolved and Open Bugs in Cisco 4000 Series Integrated Services Routers
Resolved Bugs - Cisco IOS XE 17.16.1a
All resolved bugs for this release are available in the Cisco Bug Search Tool.
|
Bug ID |
Description |
|---|---|
|
Device crashed due to IOSXE_INFRA-2-FATAL_NO_PUNT_KEEPALIVE. |
|
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FIA trace packet decode displays incorrect value for fragmentation offset. |
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SD-ROUTING: Yang model does not handle properly default ikev2 authorisation policy. |
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Cannot configure MD5 for the hash under the ikev2 proposal when compliance shield is disabled. |
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Cellular interface in last-resort mode should be admin up, line protocol down. |
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CPP crashes after routing table changes. |
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Multiple "match address local interface <int>" not pushed under crypto profile. |
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PKI trustpoint password command only allows encryption type 0 and 7 on all IOS XE platforms. |
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Config not synced between active and 3rd member of stack. |
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Software crash with critical process vip_confd_startup_sh fault on rp_0_0 (rc=6). |
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Data policy commit failure occurs when export-spread is enabled in Cflowd configuration. |
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Traceback log output with "DATACORRUPTION" error logs. |
|
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Device crashes with PKI "revocation-check ocsp none" enabled. |
|
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Syslog message '%CRYPTO_ENGINE-4-CSDL_COMPLIANCE_RSA_WEAK_KEYS: RSA keypair CISCO_IDEVID_CMCA_SUDI. |
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Selinux: Subject polaris_iosd_t denials 2024-09-16 06:43:22. |
|
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no autostate command is not available on CLI but possible to configure via CLI add-on. |
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Unexpected reload in NHRP, cache freed prior to function call. |
Open Bugs - Cisco IOS XE 17.16.1a
All open bugs for this release are available in the Cisco Bug Search Tool.
|
Bug ID |
Description |
|---|---|
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L2 traffic go to blackhole due to mac-route originated from blocked node after power-cycle. |
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Traffic loss observed on minimal values with time based policy-map. |
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BFD sessions via TLOC-Ext do not come up when IPv6 is dynamically changed. |
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Fragmented UDP SIP packets dropped on PE with IpFragErr on IP VFR and MPLS enabled tunnel interface. |
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SIG zscaler IPSec - VPN credentials for primary tunnel not created. |
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cpp_cp_svr crash noticed when configured service-policy to a dialer interface. |
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GETVPN mismatch in GMs reported across COOP due to KEK sync issue betweenprim & sec KSs. |
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Router crash observed when optimizing encrypted traffic with DRE. |
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MACsec interfaces lock up on TX direction after reload. |
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Post power cycle, unable to login to router due to error authentication failed. |
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Certificate-based MACsec flapping when dot1x reauth timers are set and after reload. |
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PPPoE session with sub-interface getting stuck after reboot. |
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MKA session down with "ICV Verification of a MKPDU failed for" error on one of the interface. |
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Speed test might work abnormally after changing system-ip. |
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cflowd source interface for sub-interface does not get pushed. |
Related Documentation
Communications, Services, and Additional Information
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Cisco Bug Search Tool
Cisco Bug Search Tool (BST) is a web-based tool that acts as a gateway to the Cisco bug tracking system that maintains a comprehensive list of defects and vulnerabilities in Cisco products and software. BST provides you with detailed defect information about your products and software.
Documentation Feedback
To provide feedback about Cisco technical documentation, use the feedback form available in the right pane of every online document.
Troubleshooting
For the most up-to-date, detailed troubleshooting information, see the Cisco TAC website at https://www.cisco.com/en/US/support/index.html.
Go to Products by Category and choose your product from the list, or enter the name of your product. Look under Troubleshoot and Alerts to find information for the issue that you are experiencing.
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