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 · 12-29-2025

it happened to me once or twice , just restart and keep trying...

Martin L · 12-25-2025

what do u need/study for ? as BB mentioned, it's not possible to simulate switch in any virtual labs; u cannot get all features of real switch in a virtual environment. Having said that, IOL image that was used in previous CCIE lab is called Iron. IO...

Martin L · 12-25-2025

Try CML free version first, then buy it

Martin L · 12-24-2025

untagged on dot1q (802.1Q) encapsulation by default but they could be tagged if you make manual changes (Native vlan is other then vlan #1). Also, tagged on all ISL trunks. Note that Vlan 1 is always used for control traffic (CDP, VTP, and PAgP...

Martin L · 12-24-2025

Yes, it is confusing but first of all, this document is old and written when Cisco ISL was being used. Hence, your line "CDP, VTP, and PAgP updates are always forwarded on trunks with a VLAN 1 tag" could refer to ISL which tags all frames; Unlike 80...

Member Since	‎05-27-2006 12:00 PM
Date Last Visited	‎01-04-2026 05:06 AM
Posts	3,304
Total Helpful Votes Received	3611

User Statistics

User Activity

SSH via tacacs+ without any crypto keys?

Questions about Switch MAC addresses

Re: Error Downloading CML-Free

Re: EVE-NG

Re: Eve ng iOS for ccie SP

Re: Switch Control Plane Traffic

Re: Tagging