Networking

Cisco SD-WAN : Public IP Address change by Cisco

Recently received mail from Cisco that they are updating the public IP address of vBond, vSmart and vManage.Wanted to check if anyone has got similar notifications and what actions were taken from your side.Will this involved any downtime, what actio...

Resolved! Switch 2 Pc to Switch 3 Pc ping failure

Hi, I'm trying to ping my PC from the Switch 2 to Switch 3's PC, but it keeps failing. I don't know why. I have attached the file of packet tracer topology in which there are 2 routers, 3 switches, 12 PCs on the left and 12 PCs on the right, which ar...

SDWAN OSPF route filtering

Hi all, is it possible to filter ospf routes. For example, cedge i forming ospf neighbor to other core device that is advertisine some netoworks and default route. I want only to accept def route and send via omp to remote branch. I know I can create...

Multiple source in PAT translation

Can you have multiple "Original Source" in the NAT translation to PAT? I seem to only be able to put one but am I missing something? I would like to only have one PAT with the multiple sources.

EIGRP Document with 22 labs for certification preparation

Download below EIGRP PDF Document with 22 scenarios I used in the past for my certification preparation with the following content, these scenarios are useful to prepare the CCNP Enterprise ENARSI exam: Lab 1: EIGRP Different AS Distribute-List Offs...

Configuration Automaticallly Getting change randomly IE3400 Switch

Hello Team,I am using 15 QTY of IE-3400 Switches in Customer environment and all are forming a Ring using REP Protocol. Everything is working fine. I can see that some automatic configuration changes is happening randomly in the configuration of swit...

Resolved! Not reading the USB drive on the 4431 ISR

We are having to upgrade our code on our router due to a published vulnerability. What we typically do in this situation is burn the required image to a USB stick and then watch it when we put it in the router, and the router will give you back "Usb...

Cisco ISE integration with okta for MFA only

We are using Cisco ISE for tacacs authentication on the devices. Now we want to enable MFA using OKTA. I have configured okta server as the radius token server and updated the identity sequence accordingly still no luck. is there any document explain...

WAN Int Ping issue

Stupid issue struggling to figure out!!!I have an ISR and working fine, just wanted to enable ping to the WAN Link from outside and I feel bad Im not able to do it. there is no config on the Interface seems blocking it so what should I check???!!!!

9000v Freezes [Post] loader > boot <image> [Enter]

Hi I was messing around on a co workers system who has esxi [as do i] and has an .ova of a 9Kv Switch. He is not available to assist so here i ask. I have googled every way I can and the results end at "type in the image at the loader" but nothing sa...

Troubleshoot Steps

Good day, Cisco engineers, I'm interested in hearing, briefly, how you approach troubleshooting.What are your steps? For example: sh cdp nei sh run And so on—what order do you follow, and how do you decide what to check first? I've come across man...

Resolved! thousandeyes-sdk-python getting "invalid token" - test curl successful

Hello ThousandEyes community, I am attempting to use the python sdk for thousandeyes: https://github.com/thousandeyes/thousandeyes-sdk-pythonI've used it in the past without issue. I'm getting an 401 - invalid access token error, but I've validated m...

Which is the best way to learn about stp, root bridge etc?

I want to learn deeper about the STP process, switching loop etc, where should I start all these topics comes under CCNA or CCNP. Which is the best study materials for a beginner to learn about cisco? Pls help.

IP SLA Bug

I would appreciate your support on the following LABI have one Router VXR1 connected to 2 routers: ISP1/ISP2.R1 is always using ISP2, even though ISP1 is reachable. ping from R1 to 8.8.8.8 using source interface F0/0 isn't reachable when the track is...

OSPFV3 With IV4 Families

Hi cisco community,Please bare with me but i believe i am missing something in my attempting conversion to ospfv3/w IPV4. Recently, we received a new security device that does not support SHA over OSPFV2. Our network does not have IPV6 present intern...