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EIGRP and VRF Issue
by ALI12 -
BGP Finite-State Machine (BGP FSM)
by a1111 -
Issue With VMware VM Microsoft Server 2019 and Network Devices in GNS3
by cooperrocks78 -
How are DSCP values set?
by a1111 -
SDWAN TLOC PREFERENCE | IPSEC PREFERENCE | OMP PREFERENCE
by noc@westernasset.com -
How to upgrade both WLC configured in HA
by Sam Caprio -
CS-2960x-48FPS-L switch boot loop
by Irimaso -
LAN not communicating with WAN
by ruffwise
Community Activity
EIGRP and VRF Issue
Hi Everyone,I’ve set up a lab in GNS3 using the EIGRP protocol, as shown in the attached diagram.Everything was working fine until I created a VRF interface on R2.Now, I’m facing some connectivity issues:-Loopback 1 can ping and reach Loopback 2 but ...
Cisco ISE - MAB authorization behaviour
Hi all,I'm trying to setup ISE to perform a simple MAB profiling for a printer. For some reason ISE rejects the printer the first time I connect it:Event5400 Authentication failedFailure Reason15039 Rejected per authorization profile I am using an au...
Issue With VMware VM Microsoft Server 2019 and Network Devices in GNS3
Hi, I created an attached lab in GNS3 and recently added a VMware VM Microsoft Server 2019 into the topology. I am having an issue where I can ping all the network devices and all the VLAN's in the topology from the server to all devices, however, I...
Cannot change C9105 back to capwap mode - ssh connection refused
I converted my C9105AXI to EWC and now I want to switch it back to CAPWAP. I tried following the directions from the post below.https://community.cisco.com/t5/wireless/how-to-convert-from-ewc-to-capwap-mode/td-p/4663375wireless ewc-ap ap shell usern...
URL Filtering registration token expires in XX days FMC
FMC started throwing Health Alert: URL Filtering registration token expires in XX days, where XX is reducing day by day. Classic licensing. ASA with Firepower module, 6.6.7.1. Could disable health monitoring for this feature, but would like to under...
How to decrypt IPSEC packet using wireshark
Sometimes you want to see how the tunnel and the transport modes works with encapsulation, especially when using GRE over IPSEC and you would like to decrypt the ESP or IPSEC packet to see how GRE packet is encapulated with the two modes, especially ...
IPV4 vs IPV6 discussion
Here and there, i see posts on the interwebs that invite crusaders for IPV6, and I don't think the position typically held during said conversations holds a mature enough perspective. I'm hoping i can get some views here with Cisco engineers and see ...
How are DSCP values set?
Hello,It's possible to identify QoS traffic based on DSCP values. For example, for the EF class, by using the command "match ip dscp ef". But, how is the correct DSCP value set for specific traffic?I know that with some applications, the user can hav...
802.1x Certificate based failed authentications on AWS ISE Server
Hello,I have a distributed ISE deployment as below:ISE 3.1 patch 6PSN: 3 physical & 3 VM Admin: 1physical & 1VMMnT: 1physical & 1VM aaa group server radius ISERadiusserver name ISE-VMserver name ISE-physicalip radius source-interface xxaaa server rad...
BGP Finite-State Machine (BGP FSM)
Hello, I've created a flowchart for the BGP FSM. Do you think I have to add or correct anything? The main goal is to learn the most important details.I've used the ENCOR OCG, and these sites:https://www.catchpoint.com/bgp-monitoring/bgp-stateshttps:/...
what is the real trigger for spanning tree take effect?
greetings guys,sorry for raising this kind of old-school question.It seems it is usually said that whenever there is a physic loop, a spanning tree (whether 802.1d or 802.1w or whatever, as long as they are not disabled) will take effect and block so...
Resolved! Cisco ISE - Move policy nodes to Admin/monitoring node
Hello Team, I need some help, we need to know if we can move the policy nodes to admin-monitoring nodes? we have version 2.4, base and Device admin licenses installed, we are running on Virtual machines. Our Deployment: 1 primary admin-secondary moni...
Cisco ISE and Switch
Hi All, I have weird issue recently on Cisco ISE and need to seek for some advise. I have deployed the Cisco ISE and switches to adapt the dot1x and mab authentication. however I notice each authorization policy changes will not immediately take effe...
Market Leadership Award: Network Access Control (NAC)
Check out this Analyst Report from Frost & Sullivan naming Cisco as the Market Leader in Network Access Control (NAC).
C9500-24Y4C Inoperable
I have a Cisco C9500-24Y4C that I setup a few days ago by creating a user and adding some vlans. I unplugged the switch and moved it to a separate desk to do further setup and testing with other devices. When I plugged it in the switch does not allow...
