About Martin L

Martin L · 07-22-2019

how is possible to use SSH via tacacs+ without any crypto keys? How Crypto keys influence AAA login ? Or Are they for local login only?we had replaced some old c3750 with new c3850 switches. Procedure was to copy old config to new switch including ...

Martin L · 07-11-2009

1. The question is to which hardware component of the switch does the physical MAC address is assigned?Like motherboard of a switch? Is it physically burned on somewhere?2. Does a MAC address of a routers Ethernet port is physically burned on it or i...

Martin L · 05-27-2023

Can Host ping its directly connected router (aka default gateway)? Or do trace route to other host? Check IP settings on end hosts looking at default gateway and network/mask matches default gateway settings. Check interface connections/links. If ...

Martin L · 05-25-2023

I think stack cables do not match between 3650s and new switch model C9200, don't they? You could mix some versions of IOS and models within the same switch series like 3650 with 24 ports and 48 ports or 3650 GiG with PoE one. but not cross over to n...

Martin L · 05-25-2023

You must enter correct network id and corresponding mask id for route or prefix. So called prefix or prefix id is just network id while prefix length is mask or network mask. You can use online subnet calculators to see network id or prefix id. In c...

Martin L · 05-25-2023

Yr welcome. You can still change Gi2 to Gi1 in Gi2/0/1-24, if that bothers you. Just go to "Mode" switch mode and look for settings that say this switch is #2. Change that number to 1. There might be more detailed steps by steps listed somewhere...

Martin L · 05-24-2023

Yes, you can power down from last switch (bottom one) towards top one (master on the top of stack). So, power off sw 4, 3,2,1. Disconnect stack-wise cables and move to new location, reconnect stack-wise cables. Then, power on from master to lowest ...

Member Since	‎05-27-2006 12:00 PM
Date Last Visited	‎05-30-2023 05:39 AM
Posts	2,202
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SSH via tacacs+ without any crypto keys?

Questions about Switch MAC addresses

Re: Routers Can Ping Each other, Hosts cant ping across routers

Re: Placing different models in same stack?

Re: Static route

Re: Getting rid of an old module interface listing on a Catalyst 3750

Re: Power off/on Stack Switches