hi all sorry about this simple question this is a my first time for i want to download IOS to upgrade My Switches (2950 , 2960 , 3550 , 3750) so i try too much but i can't download anything should i pay money for downloading CISCO switch IOS? if not ...

hello all i have 2 questions please help me : thanks a lot ;) 1-while i want to run MSTP (maybe with VTP V3 or VTP V.2) must I config in all switches(Both Layer 2 and Layer 3) as i show in picture ? i mean i should type commands:spanning-tree mode ms...

Hello all i hope you are welli have ASA 5520 with 2 interface(inside:10.0.0.0/24 && outside(public):192.168.1.0/24 which get an ip address from DHCP server and has accessibility to internet)i have one test router(R1) in same range as outside range of...