Release Notes for Cisco ESR6300 Routers, Release 17.18.1a
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Cisco ESR6300 Embedded Series Router, IOS XE Release 17.18.1a
Cisco ESR6300 Embedded Series Router, IOS XE Release 17.18.1a
This release notes document provides information about the new features, resolved and open issues, supported software packages and information on how to obtain support and documentation.
There are no new features introduced in this release.
There are no new features introduced in this release.
There are no behavior changes in this release.
Notice of upcoming changes in the Cisco IOS XE 17.18.2 release and beyond
Cisco is committed to safeguarding our products and customer networks against increasingly sophisticated threat actors. As computing power and the threat landscape have evolved, some features and protocols currently in use have become vulnerable to attack. While more secure alternatives are now available, legacy protocols may still be in use in some environments.
To improve network security, reduce the attack surface, and protect sensitive data, Cisco will begin phasing out legacy and insecure features and protocols, encouraging customers to transition to more secure alternatives. This process will be gradual and designed to minimize operational impact. The first phase begins with the Cisco IOS XE 17.18 release train. This is part of a broader initiative to make Cisco products more secure by default and secure by design.
Starting with the Cisco IOS XE 17.18.2 release and in future releases, Cisco software displays warning messages when configuring features or protocols that do not provide sufficient security such as those transmitting sensitive data without encryption or using outdated encryption mechanisms. Warnings also appear when security best practices are not followed, along with suggestions for secure alternatives.
This list is subject to change, but the following is a list of features and protocols that generates warnings in releases beyond the version Cisco IOS XE 17.18.1a. Release notes for each release describes the exact changes for that release.
● Plain-text and weak credential storage: Type 0 (plain text), 5 (MD5), or 7 (Vigenère cipher) in configuration files.
Recommendation: Use Type 6 (AES) for reversible credentials, and Type 8 (PBKDF2-SHA-256) or Type 9 (Scrypt) for non-reversible credentials.
● SSHv1
Recommendation: Use SSHv2.
● SNMPv1 and SNMPv2, or SNMPv3 without authentication and encryption
Recommendation: Use SNMPv3 with authentication and encryption (authPriv).
● MD5 (authentication) and 3DES (encryption) in SNMPv3
Recommendation: Use SHA1 or, preferably, SHA2 for authentication, and AES for encryption.
● IP source routing based on IP header options
Recommendation: Do not use this legacy feature.
● TLS 1.0 and TLS 1.1
Recommendation: Use TLS 1.2 or later.
● TLS ciphers using SHA1 for digital signatures
Recommendation: Use ciphers with SHA256 or stronger digital signatures.
● HTTP
Recommendation: Use HTTPS.
Note: HTTP SCEP config will still be supported.
● Telnet
Recommendation: Use SSH for remote access.
● FTP and TFTP
Recommendation: Use SFTP or HTTPS for file transfers.
● On-Demand Routing (ODR)
Recommendation: Use a standard routing protocol in place of CDP-based routing information exchange.
● BootP server
Recommendation: Use DHCP or secure boot features such as Secure ZTP.
● TCP and UDP small servers (echo, chargen, discard, daytime)
Recommendation: Do not use these services on network devices.
● IP finger
Recommendation: Do not use this protocol on network devices.
● NTP control messages
Recommendation: Do not use this feature.
● TACACS+ using pre-shared keys and MD5
Recommendation: Use TACACS+ over TLS 1.3, introduced in release Cisco IOS XE 17.18.1.
Cisco is committed to supporting customers through this transition. Subsequent releases in the Cisco IOS XE 17.18 train continues to support these features but displays warnings if they are used. Future release trains may impose additional restrictions on these features which will be communicated through release notes.
You can also access the resolved caveats for this release through the Cisco Bug Search Tool.
Note: This software release may contain bug fixes first introduced in other releases. To see additional information, click the bug ID to access the Cisco Bug Search Tool.
This table lists the resolved issues in this specific software release.
Table 1. Resolved issues for Cisco ESR6300 Router, Release 17.18.1a
| Description |
|
| ESR6300 with SLR does not install 2G or uncapped license after reload. |
|
| In the platform, ESR-6300-NCP-K9, we may lose the configuration after removing the SLA trustpoint. |
There are no open issues in this release.
This table lists the limitations for this release.
Table 2. Known issues for Cisco ESR6300 Router, Release 17.18.1a
| Product Impact |
Description |
| Smart Licensing Using Policy |
Starting with Cisco IOS XE 17.6.1, Smart Licensing Using Policy has changed how device information is displayed. When you configure a hostname for a product instance or device, only the Unique Device Identifier (UDI) is shown. The hostname is no longer displayed in licensing utilities and user interfaces as it was in previous releases. This change does not affect any licensing functionality, and there is no workaround for this limitation. The licensing utilities and user interfaces affected by this change are:
● Cisco Smart Software Manager (CSSM)
● Cisco Smart License Utility (CSLU)
● Smart Software Manager On-Prem (SSM On-Prem)
Example of revised content: Note: This is a display change only and does not impact license operations or activation. |
| Key Exchange and MAC algorithms |
Starting from Cisco IOS XE Release 17.10, the following Key Exchange and MAC algorithms are removed from the default list:
● Key Exchange algorithm:
◦ diffie-hellman-group14-sha1
● MAC algorithms:
◦ hmac-sha1 ◦ hmac-sha2-256 ◦ hmac-sha2-512 Note: You can use the ip ssh server algorithm kex command to configure the Key Exchange algorithm and the ip ssh server algorithm mac command to configure the MAC algorithms. |
This section lists compatibility information on Cellular Module Modem Firmware, OEM/PRI and it lists the latest modem firmware available for each of the modems used by the Cisco IoT routers. See the Cisco Firmware Upgrade Guide for 4G LTE and 5G Cellular Modems for upgrade instructions.
Cisco IOS XE updates do not automatically update modem firmware. You should manually check and update all modems to the latest firmware version, including any related PRI and/or OEMPRI components. Refer to the following table for the most up-to-date information.
Table 3. Cellular Module Modem Firmware for Cisco ESR 6300 Router, Release 17.18.1a
| Cellular Module |
Modem |
Software download link |
| P-LTE-MNA |
WP7610 02.37.03.05 |
|
| P-LTE-LA |
EM7430 2.38.00.00 |
Generic: https://software.cisco.com/download/home/286308413/type Australia Telstra: https://software.cisco.com/download/home/286311403/type Japan: |
| P-LTEA-EA |
EM7455 02.37.0x.00 |
Generic: https://software.cisco.com/download/home/286308426/type Europe: https://software.cisco.com/download/home/286308426/type Canada: https://software.cisco.com/download/home/286319713/type North America ATT: https://software.cisco.com/download/home/286311442/type North American Sprint: https://software.cisco.com/download/home/286311455/type North America Verizon: |
| P-LTEAP18-GL |
LM960 32.00.1x9 |
Generic: https://software.cisco.com/download/home/286324996/type North America: |
| P-5GS6-GL |
FN980 38.03.0202 |
This section provides information about the release packages associated with Cisco ESR6300 Router.
For latest software downloads, see the Software Download page.
Table 4. Software packages for Cisco ESR6300 Router, Release 17.18.1a
| Image type |
Filename |
| Universal |
c6300-universalk9.17.18.01.SPA.bin |
Table 5. Related resources
| Document |
Description |
| Provides products supported by Cisco IOS XE. |
|
| Provides data sheet for the specified routers. |
|
| Cisco Industrial Routers and Industrial Wireless Access Points Antenna Guide |
Provides descriptions and installation instructions for wireless antennas supported on the Cisco Industrial Series Routers and Industrial Wireless Access Points. |
| Provides information about Cisco IOS XE 17.x releases and ordering details. |
|
| Provides information about SD-WAN releases and resources. |
|
| Provides information about Cisco IoT Field Network Director releases and resources. |
|
| Provides information about Cisco Industrial Network Director releases and resources. |
|
| Provides information about Cisco IoT Operations Dashboard releases and resources. |
|
| Smart Licensing Using Policy on the Cisco Catalyst IR1101, IR1800, IR8140, and IR8340 Routers or the |
Provides information about Smart Licensing Using Policy solutions and their deployment on IOS XE routers. |
| You can submit a service request here. |
|
| Provides most up-to-date detailed troubleshooting information. |
|
| Use CFN to browse Cisco products and find relevant features and licenses. allows you to compare platforms, determine common features between products, and identify unique product features. The CFN also has a tab that provides a MIB Locator |
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