I'm trying to fully understand the flow of L2 traffic.Lets say there are two or three intermediate l2 switches between me and my default gateway.If I understand correctly, l2 to l2 does not inspect the l3 headers, meaning the switches don't know what...
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I am having trouble configuring the C1300 and Dell 6224 switch.On the Dell side, I received the following configuration:The assumption is that traffic in VLAN150 is tagged, and I have no problem with that. The problem is with VLAN1, which is supposed...
Hello Expert,I'm working on a somewhat complex network design and could use your expertise. I have two sites, each with a similar setup: a firewall and a Layer 3 switch.At Site 1, the firewall is deployed in a "router-on-a-stick" configuration with t...
Resolved! Problem with Web Browser and ACL
Hello guys I just made this simple topology with 3 router, 3 switch 3 pc on 1 switch, 3 on other, and last switch with a web server (internet) and a dns server. I also activated RIP between all the routers and ACL permit on the router connected to in...
Hi all, Could someone please explain to me why I see the things I do with MST? I have the below setup in a lab, where SW1 is configured with the lowest Cost and is the root bridge. Everything is working as expect, in regards to STP, and SW4 is Blocki...
Hi all, On a couple of C9500 40x in VSS I need to replace the 10Gb VSL links with 40Gb links. So I need to go from here: stackwise-virtual domain 255 interface TenGigabitEthernet1/0/39 stackwise-virtual link 1 ! interface TenGigabitEthernet1/0/40 ...
Hello all, I'm having a very strange issue with a 3rd party purchased 3850 WS-C3850-24XS stack. I am using the Mgmt-vrf to manage the switch and pings work when you source from that vrf. But pinging without the source of vrf doesn't work NOR does it ...
Resolved! Blocking a website from a cisco Router
Hi.,Community People.How best can i prevent my inside network from accessing a certain website:for instance, url: www.Blinkstreamz with IP: 213.176.3.30. ''ip route 213.176.3.0 255.255.255.0 null0 name Blinkstreamz''Can the above route suffice to bl...
Consider the following scenario:Switch port on Cisco 3650 configured with authentication host-mode multi-auth and switchport access vlan 101Unmanaged 'dumb' switch connected to a switchport on the Cisco switchTwo devices connected to the unmanaged sw...
We have an issue since a long time upgrading the software of a Catalyst 9300 Switch. We are currently running 17.03.04 and wanted back then to 17.09.05 and right now to 17.12.04. The Problem, there is a virtualization machine connected with multiple ...
I am trying to troubleshoot/investigate this issue and it does not seem to be making any sense to me.I have a Nexus C9300-48U version (Version 17.9.2r CAT9K_IOSXE). The switch is configured to talk to 3 Cisco ISE PSN nodes, node1, node2, and node3 (...
I'm looking for confirmation of my thinking being correct, or corrections where wrong. Here is my situation: Large School District with construction nearing completion of a new building where the core of our network will be moved. Right now we have...
i am searching about the Eve Nexus 9k, which includes the VRF feature. I downloaded 9.3.9, but it does not include VRF. I want image series 9300Does anyone know what exactly that ver that I downloaded? ?
Resolved! Connection closed by foreign host
I'm a student in IT and in packet Tracer we created a network with switches.Now I configured the ssh for remotely connection from one of the pc's.Because it's in packet Tracer I only can use cmd-prompt (no putty or TeraTerm) My configuartion: #conf...
hi all,im trying to tweak my nics for best performance ie speed as this servers going to be used just for transferring files from and to different network shares (each network share has a different nic assigned to it on the server)on windows especial...
