About jonathan.e.brown

jonathan.e.brown · 04-30-2021

I'm having issues SSH'ing from a Cisco 3925 router to a FIPS enabled and hardened Linux server. The Cisco 3925 is on IOS version 15.7(3).M7. The Linux server (RHEL 7) is configured with the following defined in its SSH server config: Ciphers aes128-c...

jonathan.e.brown · 06-01-2020

I believe I have a bad Cisco Nexus N9K-C92160YC-X. I would like it if someone could confirm it for me before I submit an RMA. I received this switch brand new from my supplier with a blank configuration. It booted up successfully the first time I p...

jonathan.e.brown · 04-20-2020

I have a Nexus 92160YC switch on NX-OS version 9.3.1. It's configured to use a radius server (RHEL 7 server running freeradius) for 802.1x MAC Authentication Bypass (MAB). When it's initially setup it appears to work fine for devices that are auth...

jonathan.e.brown · 08-22-2019

I'm pretty sure this is a simple question but I'd like to know officially whether a Cisco 3850 running IOS 16.6.5 effectively run EIGRP and BGP at the same time? I know that the 3850 supports both EIGRP and BGP but I'm really wondering how well it w...

jonathan.e.brown · 02-11-2019

I am attempting to mitigate the issues surrounding bug report CSCum44673. According to the software release notes found here, I need to ensure that all of my routers are on IOS version 15.2(2) or newer. I also believe I need to include the statemen...

jonathan.e.brown · 06-09-2020

Turns out the switch was covered under the Army service contract. I was able to get the switch replaced within a day. The replacement switch is working great.

jonathan.e.brown · 06-01-2020

So I just ended up calling Cisco support and they told me that the warranty is expired and that it's not covered under any service contract. I know I had mentioned that I got this from my supplier but in truth it came from one of our Army customers....

jonathan.e.brown · 06-01-2020

In fact the output shows that it's attempting to boot nxos 7.0.3 which was the version that the switch shipped with. I was planning to upgrade to 9.3.3. Booting bootflash:/nxos.7.0.3.I3.1.bin ...Booting bootflash:/nxos.7.0.3.I3.1.bin

jonathan.e.brown · 06-01-2020

I don't even remember actually performing the upgrade. I know I ran the "show install all impact" command and everything was good. I can't remember for certain whether I actually performed the upgrade after issuing that command. Is there something in...

jonathan.e.brown · 06-01-2020

I forgot to mention that I also applied the following commands: diagnostic monitor interval module 1 test PrimaryBootROM hour 23 min 59 sec 59 diagnostic monitor interval module 1 test SecondaryBootROM hour 23 min 59 sec 59These were in order to avo...

Member Since	‎03-06-2017 03:33 PM
Date Last Visited	‎05-07-2021 01:28 AM
Posts	38
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Define which key exchange algorithms to use on Cisco 3925 when ssh'ing to a linux server?

Cisco Nexus N9K-C92160YC-X kernel panicking at bootup and stuck in endless powercycle.

Nexus 92160YC switch drops its dot1x configuration when authentication failure occurs; goes into dumb state.

Cisco 3850 running EIGRP and BGP simultaneously?

Effect of using "ntp allow mode control 0"?

Re: Cisco Nexus N9K-C92160YC-X kernel panicking at bootup and stuck in endless powercycle.

Re: Cisco Nexus N9K-C92160YC-X kernel panicking at bootup and stuck in endless powercycle.

Re: Cisco Nexus N9K-C92160YC-X kernel panicking at bootup and stuck in endless powercycle.

Re: Cisco Nexus N9K-C92160YC-X kernel panicking at bootup and stuck in endless powercycle.

Re: Cisco Nexus N9K-C92160YC-X kernel panicking at bootup and stuck in endless powercycle.