Technology and Support

Cisco ISE 3.5 Patch-4 eval license

I have a Cisco ISE 3.5 Patch-4 cluster up and running for testing. I restored the ISE 3.3 Patch-12 configuration backup to this ISE 3.5 Patch-4 cluster seven days ago, and everything seems to be working fine. However, it has been a week and I am st...

ASR router 9903 25.4.2 mini IOS inactive package.

Dear team,As i checked, mini IOS showing inactive packages. Also 0/0 ASR-9903-LC showing SW_INACTIVE state.could you please help us to install mini IOS and how to 0/0 ASR-9903-LC in ACTIVE state.Please find the below output for your reference.RP/0/RP...

USB to RJ45 Cable for Console?

Does Cisco, or anyone else do a cable that will allow me to connect my USB only laptop to a console port on a Cisco device?Thanks

HWIC-16A Configuration - Hardware fault?

I'm trying to configure a HWIC-16A as a terminal server without success. I can get a telnet session to connect, but I simply get a blank screen, no data appears to be sent or received over the serial line.The only similar post I could find was https:...

Cisco 9300-48U with Cisco ISE for wired 802.1x

I am trying to troubleshoot/investigate this issue and it does not seem to be making any sense to me.I have a Nexus C9300-48U version (Version 17.9.2r CAT9K_IOSXE). The switch is configured to talk to 3 Cisco ISE PSN nodes, node1, node2, and node3 (...

Cisco ISE 3.3 Patch-12 and Cisco ISE 3.5 Patch-4 and TLS settings

Hopefully someone know the answer to this. I have Windows 11 25H2 running wired and wireless 802.1x using EAP-TLS in my environment with Cisco ISE 3.3 patch-12. Everything is working. My ISE 3.3 patch-2 does NOT have TLS 1.3 checked in the settings...

9500-40X ISSU Upgrade with OSPF running between Core Switch & SDWAN

Hi,I performed an ISSU upgrade on the Catalyst 9500-40X switches from IOS-XE 17.15.6 to 17.18.4. During the upgrade, I observed traffic interruption and ping drops for approximately 15–20 seconds, despite NSF and SSO being enabled.Is this expected be...

detecting duplicate ips

hi all,is there a command to run to detect if i have duplicate ips on a vlanthanks,rob

Vicon IP Cameras Issue in C9300-48uxm running IOS-XE 17.9.1

Hi All,We're facing issues in C9300-48UXM 8-Stack switches running IOS-XE 17.9.1. All our Vicon IP cameras are goes offline when the switches are suddenly rebooted due to maintenance. POE devices are online like Cisco IP phone, Cisco APs, PC, and oth...

MAC ACL per port per vlan

I am looking for a feature/command on Nexus 9K device. The requirement is to drop mcast packets on trunk ports on a certain vlan but only on certain trunk ports. For example Port 1 and 2 is a trunk port each carrying vlan 100 and 200. I want to blo...

Multivendor EvE-NG ISP Mega Lab .OVF — Cisco, Juniper and Huawei

I've been building a multivendor ISP lab in EVE-NG to practice and demonstrate service-provider networking technologies.The environment includes Cisco IOS XR, Juniper vMX, Huawei NE40E VRP, BGP, MPLS L3VPN, EVPN, IPv4/IPv6, DMVPN, EVC, EVPN, BGP Clus...

Resolved! Cisco CBS110-8T-D-CN Hardware Specifications and Chipset Information

Hello everyone,I'm looking for detailed hardware specifications for the Cisco Business CBS110-8T-D-CN 8-port Gigabit Ethernet switch.I understand that an older hardware version of this model uses the Realtek RTL8370N switch chipset. Does the current ...

Cisco Secure Access Change Log for 2026-10-16 to 2026-10-22

Cisco Secure Access Change LogRelease window: 2026-10-16 to 2026-10-22SummarySimpler administration: Clearer policy activity, navigation and schedule management; filtered Resource Connector Logs; improved RADIUS server management.Networking: IPv6 sup...

WLC C9800 On-Premise VS Remote

Hi,I am setting up a New WLC9800 with 17.18.5 that will be the controller hosting multiple remote sites. APs are in Flex Local switching and "central authentication unchecked".... PSK and dot1x. it is functional now.basically I duplicated an on-Premi...

GA Release of UEBA - Failed Private Resource Access Attempts

Feature OverviewCisco Secure Access now detects when a user's failed attempts to reach private resources are unusually high compared with that user's behavior or the organization's behavior. Behaviour Analytics groups client-based Zero Trust Access d...

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