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dmcgrath.ca · 04-04-2025

It would appear that there is a new snag to the expiring certificates that I ran into on a WLC 2504 with 8.5.160 and AP's of 3602i and 3702i. Specifically, the WLC certificate expired on Feb 17th 2025 and I guess the APs stay connected until somethin...

dmcgrath.ca · 10-23-2023

Hi,Is it possible for the N9K-C9372PX (not C9372PX-E) switches to used FEX (N2K-C2248TP-E-1GE) on version 7.0(3)I7(10)?While attempting to configure the feature, it's not even available, and trying the "install feature-set fex" isn't the same as "fea...

dmcgrath.ca · 05-19-2022

Hi,I have been having a problem with Linux clients that use the DNS server on a 1921 router, and was wondering if someone might have some ideas on what the problem below, might be. Worth mentioning, this problem doesn't seem to happen on a similarly ...

dmcgrath.ca · 03-12-2021

Hi,Recently we decided to prepare a Nexus 5k switch (paired in VPC w/ FEX's) and connect it to our 3750 stack, which also has a WLC (etherchannel ON) and a Proxmox cluster with trunking LACP ports connected to it.The problem that we ran into was sudd...

dmcgrath.ca · 02-10-2021

Hi,I have a set of wired and wireless (WLC) networks in the same VLAN and noticed that some traffic is tripping up the %SW_DAI-4-DHCP_SNOOPING_DENY.I did some digging, and it appears that clients that are connected to both wired and wireless networks...

dmcgrath.ca · 06-18-2024

Funny, I ran into the same problem following the same video from Jeff Kish I wasn't able to get 9216 MTU to work, but it had no problem with an MTU of 1550, which should be sufficient for VXLAN.

dmcgrath.ca · 05-20-2022

Hi, I neglected to mention that I did try with cef disabled, but had no effect. Also, FreeBSD is perfectly fine, it just appears to be Linux so far.As for the config, I would have to redact like 90% of it, but I can say that the following general fea...

dmcgrath.ca · 03-12-2021

Hey,I did a quick stripped down layout to give a general idea of the setup.The hosts are flapping between the WLC and the PVE cluster only, and doesn't happen when I turn off the Nexus trunks, of course.Hope that helps! Thanks.

dmcgrath.ca · 07-28-2020

@patoberli wrote:If you have an 802.11ac Wave2 model, try the slightly newer 8.5.161.0 release. It fixes one bug in regards to ARP, that might cause this issue.Is your switch stack also your router? If no, is IGMP enabled on the router?No, it is wave...

dmcgrath.ca · 07-25-2020

@patoberli wrote:Which software version is running on the ap?Ah sorry! I'm used to AP and saw "app".We are running:

Member Since	‎02-02-2016 03:19 PM
Date Last Visited	‎04-07-2025 08:43 AM
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Re: WLC 2504 Controlller / AIR-CAP2602I-E-K9 / Self Signed Certificate

Does the Nexus N9K-C9372PX support an N2K FEX? (Solved)

5 second DNS request delay with Linux clients using IOS DNS server

SW_MATM-4-MACFLAP_NOTIF between 3750 and Nexus 5k

Dual wired and wireless connection with DAI

Re: CML2 - CSR1000v 'does not support user settable MTU'

Re: 5 second DNS request delay with Linux clients using IOS DNS server

Re: SW_MATM-4-MACFLAP_NOTIF between 3750 and Nexus 5k

Re: Chromecast showing up on WLAN only

Re: Chromecast showing up on WLAN only