Community Record
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Apr 3 2024
2:20 AM
Are you sure that the cabling is OK? If you ruled that out then ... In rare circumstances, there are UDLD errors and spanning tree errors caused by a physical issue at the component level on only MS120's. It seemed to mainly be effecting ports 10/11, but after searching I do see some other scenarios where this happened with ports 3. The issue should only impact negotiation at 10 and 100mbps
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There are MS120 switches that have a (small) chance on hardware issues at the chip level, resulting in neighbouring ports like 10/11 or 2/3, seeing eachother. Resulting in spanningtree blocks, and UDLD errors, and ports having intermittent connectivity. This issue is acknowledged by Meraki, but in the case i have opened Meraki can not give details like production batches or serial numbers of switches that are sensitive for this bug. We have an organizaton with 500 MS120-24P switches, where now around 15 - 20 switches are hit by this bug. These switches are around 3 years in use at the customers sites now, production - i guess - around beginning or halfway 2020 I wonder if anyone here has experienced this issue and has more details.
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Interfaces
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Layer 2
Dec 1 2023
1:59 AM
Thanks, I guess my real question is: will the MX keep its own table of dns hostnames <> ip addresses, does it update this by its own initiative or is it relying on / waiting for clients doing (readable) DNS requests? Or, in other words: what (if anything) exactly "breaks" when clients start doing DNS over TLS?
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Nov 30 2023
2:41 PM
We have outbound access lists in MX's with hostnames (and also ip addresses / ranges). We also have (android) clients that do DNS requests over TLS to google's DNS (8.8.8.8 over port 853). Are these 2 compatible with eachother? Because i don't see how this can work - the MX has no way to know if a client is trying to access an allowed website. Should we just block port 853 and force the client to choose normal dns?
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Nov 28 2023
6:09 AM
1 Kudo
For MX68's, since not very long you can see what client is connected to what MX68 port in the Clients overview.
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Jul 18 2023
12:09 AM
What was exactly changed in this sizing guide, with what firmware change?
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Mar 23 2023
2:43 AM
Webinterface or API? The reason for my remark is that the API interface api.meraki.com seems to have changed their supported TLS cipher suites a few days ago without any warning... .
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Feb 10 2023
2:43 AM
Thanks, On the vMX in AWS there already is a manual NAT configured.
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Feb 6 2023
1:23 AM
Thanks for your reply. Did you do any troubleshooting, like firmware upgrading, opening a case with Meraki / AVM etc? We have 6 HUB's and 320 spokes with an MX67 behind a Fritzbox 7590. Somehow autoVPN issues on multiple locations started last week, affecting only the autoVPN to 1 of the 6 hubs. Making an exposed host could be an option, but we would have to disable the DHCP client on the MX. Not something i'm looking forward to do.
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Feb 3 2023
4:24 PM
It looks as if the Fritzbox 7590 xDSL ISP router is not fully compatible with Meraki's AutoVPN mechanisms. We have major issues with MX67 spokes connecting to a vMX hub in AWS. Tunnels going down and staying down until we reboot the MX or the Fritzbox. Does anyone have the same experience?
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Auto VPN
Nov 22 2022
8:21 AM
On a template based MX68 based organisation, the / Addressing & VLANs page of the template, the numbering starts with Port 2. Can someone tell me if this port 2 is actually the first LAN port (next to the 2 Internet/WAN ports) ? Or is port 2 really the second WAN port?
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Jun 7 2022
7:07 AM
I ran into the same issue when trying to add an MG to a network and opened a case: ====================================== This is actually expected behaviour. Bound networks are unable to add new device types without being rebound to a template Unfortunately, we only have a single fix for this which is documented below. I'm afraid it's considered disruptive configuration change and is recommended to be done during a maintenance window. https://documentation.meraki.com/MG/MG_Best_Practices/MG_Templates_Best_Practices#Adding_an_MG_into_a_Bound_Network =================================================================================== Could such an action be executed by an piece of software that uses API calls? Anybody aware of such an application?
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May 21 2021
12:49 AM
About 30 years ago i was a field engineer. Had to go to a customer - employee of a large insurance company - to do a small modification on a dialup-modem. The modem sometimes started to dialin by its own, causing high phone bills. Usually we only did business-to-business visits, so only offices, retail locations etc., But this time i went to a private house. The male employee was on the road, i was alone with his wife. She started talking and making advances to me while i was doing the modification.... Of course i ... [text deleted by moderator..]. ===================== Oh yes, does anyone remember the "my network is slow!!!" complaints, just to find out that the central Windows NT server was running an OpenGL moving screen saver that was consuming all CPU power of that server...?
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Feb 1 2021
2:23 PM
Is there any chance that support for a secondary IP range will be implemented in the next few months?
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Nov 16 2019
1:35 AM
I have personally given many pieces of Cisco hardware a new life by rescueing them from a schredder-death, cleaning, testing and giving them a new life to CCNA/CCNP student's lab enviroment. I really wish the same could be done easily for Meraki equipment....
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Jun 14 2019
3:13 PM
Thanks Alex ! I expected it at the alerts page. Is there some way to switch these emails off by default for newly created users? Or can an admin higher up in the hierarchy manage this for other users?
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Jun 14 2019
3:15 AM
Hi all, If an administrator unsubscribes (with the link at the bottom of the email) from license warning emails, how can he re-subscribe again? I looked at all kinds of places in the dashboard. Can't seem to find it... Users, alerts, administrators...
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Apr 30 2019
6:18 AM
On MS120-8P and MS120-24P switches i see that wire pair 4 is not tested on ports that are in 100FDX mode. Port Link Length Status Pair 1 Pair 2 Pair 3 Pair 4 17 100fdx 1 m OK ok ok ok - Is it a bug or a feature ?
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