Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...
Forum Posts
On a single router if we have connected two different networks with different process IDs configured will they communicate or not.if yes, what needs to be done to communicate with each other?
Hi Team,I recently upgraded firmware of Switch(C9200L). But after upgradation I can only telnet the device via putty and not on Windows.Before upgradation I could telnet using windows as well. Also, I can still telnet from my windows to devices that ...
Resolved! IPv6 configuring Question
I am trying to make tunnel with 3 routers in the middle.There are Router 0 1 and 2, 1 and 2 are connected to 0 and try to make tunneling over it.on router 1 there are 2 switches connected linearly and at the end to that last switch there are 2 pc's....
Just 40 meters beside our IT server room, there is a clinic and there is an ethernet cable is going from IT room to this Clinic and it is connected to a small wifi router , there are 3 devices connected to this wifi for internet, since two weeks th...
Hello all, I would just like to ask, if the described port-secuity behaviour is expected by that feature. A cisco switch catalyst 9200 or 9300 with IOS-XE 17 (behaviour seen on IOS XE 17.3.5 and 17.6.5). Some ports configured with port-security and s...
Good Day All,Our server has an aggregation "externalaggr0" that runs LACP active with 2 members.6c:fe:54:2:b9:21 and 6c:fe:54:4:5c:61. LACP was using the MAC address of member 6c:fe:54:4:5c:61 as the SystemID... but we removed that interface from...
Hey, I am currently studying for CCNA and I could not get my head around why DAI would need to inspect the destination MAC address to mitigate ARP attacks since the destination MAC address should always be the victim. Any help in understanding a scen...
Hello, I'm reaching out as I recently performed a Firmware upgrade on a WS-C2960S-24TS-L swtich stack (2 switches) from software version 12.2(55)SE3 to 15.2(2)E9. The upgrade appeared to go well but once the switches fully booted I saw our redundant ...
Hello experts, We arenot able to ssh to our new core switches: Switch: 3850 Software version: 16.3.5b Error:350259: Jun 11 08:23:48: %SSH-3-NO_MATCH: No matching kex algorithm found: client diffie-hellman-group1-sha1 server diffie-hellman-group-e...
Hello,I have an interface on a 4948-48port that temporarily snmp's some high discard rate events, that always are short lived. I am going to open a case I think but I thought I would ask the question here what might be going on. Any help would be app...
Hola buenasHe abierto un archivo de packet tracer y me he encontrado con el error de la foto que adjuntoNo solo me ha pasado a mi sino también a algunos de mis compañerosEl Packet Tracer proviene de un link a una página que contiene cursos anteriores...
I have a number of ESS-3300-NCP switches bought from different sources and would like to know the firmware version that is loaded without installing them. Can this be determined by the serial number?
Hi All, I am going to be installing a few 9300 switches at my location and I am looking for a guide or information about activating the inbuilt WLC on this platform. Does anyone have any guides or information on how to activate this feature set? ...
Resolved! Re-numbering stack member
So this is my first attempt at a stackwise virtual (C3850), however I think this also applies to other flavours of stacking apart from vPC. The switch with the lower mac address obtained the #1, which is not what I intended. (basically it is physic...
I need 2 type of switches: Access switch (Qty - 7) - with 48 1Gb RJ45 & atleast 2 10G RJ45 ports, stackable(Group 1 - Need to stack 4 swicthes and Group 2 need to stack 3 switches )Core Switch (Qty 1)- 16 or 24 port(8 10Gb RJ45 & rest 1G/10G RJ45 por...
