About johnnylingo

johnnylingo · 11-30-2016

I'm evaluating the Nexus 2248TP Fabric Extenders as replacement for our older 3750E and 2960 switches. I have the 2248 uplinked to a pair of 5548s, both switches report the Fex "online" and successfully bundled the ports in to a vPC. Everything see...

johnnylingo · 11-03-2016

I'm using the BGP option "remove-private-as" to strip out our private AS numbers for routes sent via the WAN. This works well. However, some paths are from Amazon VPCs end with their ASNs (usually 7224 or 9059). In this case the advertised route s...

johnnylingo · 09-19-2016

We have several 2900 series ISR terminating site to site VPNs and often see these messages: CRYPTO-4-RECVD_PKT_INV_SPI: decaps: rec'd IPSEC packet has invalid spi for destaddr=198.18.99.123, prot=50, spi=0xA6517B6A(2790357866), srcaddr=82.221.105.6,...

johnnylingo · 03-14-2016

Pair of separate UCS clusters, consisting of 5108 chassisBoth with UCS Manager 2.2(6)eEach UCS cluster uses a pair of 6248UP Fabric InterconnectsFabric Interconnects connect to Nexus 5672UP pair via vPC We're deploying a new app and finding while un...

johnnylingo · 02-10-2016

I have call-home configured on a 2921 ISR G2 running 15.3(3)M7. Configuration is as follows: service call-home ! call-home contact-email-addr myemail@mydomain.com mail-server smtp.mydomain.com priority 1 sender from cisco.alert@mydomain.com si...

johnnylingo · 02-15-2022

Old thread, but just came across this today. My advice is first configure ip ssh source-interface on the router, then attempt to SSH to the remote server from the the CLI, and check logs on the router. I saw this: Feb 15 17:26:44.668 UTC: %SSH-3-AU...

johnnylingo · 03-17-2020

Glad I found this thread. The file privilege command is what I needed as well, even in the latest IOS-XE. Blog post: Giving read-only access on Cisco IOS-XE with RADIUS authentication

johnnylingo · 11-08-2019

Just came across this myself. The explanation is likely specific to the 93180YC-EX line, as this switch is essentially a rebranded Nexus 5672 which itself is really a Nexus 6kJumbo Frames on Nexus 93180YC-EX, 5672UP, and perhaps others

johnnylingo · 10-30-2019

I have one that has been tested on the 93180YC-EX and 5548UP: https://layer77.net/2019/09/01/cacti-template-for-cisco-nexus-9k/

johnnylingo · 10-16-2019

Realize this post is a couple years old, but I just made a blog post about this exact same problemhttps://layer77.net/2019/10/16/cisco-ios-xe-scp-server/

Member Since	‎05-18-2006 01:04 PM
Date Last Visited	‎02-22-2022 05:33 PM
Posts	715
Total Helpful Votes Received	259

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Nexus Fabric Extenders, config mismatch between downstream 5Ks?

BGP: remove-private-as vs remove-private-as all

Changing severity of syslog messages

Passing Multicast between UCS Clusters

Call-Home VRF disappears when rebooting

Re: SCP transfer failure

Re: Privilege issue on "show running-config" on Cisco 3925

Re: 93180YC - Jumbo Frames

Re: Nexus 5K and 9K Graph in Cacti

Re: Radius attribute to grant priv 15 for scp