Hi Guys,I have a firewall configured in bridge mode (transparent) and it is in between of my two switches and these two switches needs to form OSPF neighbor.The two interface of my firewall is configured as trunk and I tag the VLAN per interface like...
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Hello, 1. Do Catalyst 9X00 switches need to go online regularly to update? I would like to know if they are obliged to communicate with a cisco server continuously as for firewalls.2. Is it possible to request PLR (Permanent Licenses Registration) fo...
Hi all,this is most likely not a Cisco issue, but there's a lot of expertise here, I hope one of you can point me in the right direction. I also asked this question in the pfsense forums.Network setup:ISP - Bridged modem - PfSense - Cisco SG250 swit...
Resolved! Enabling POE+ in Cisco Switch
I have Cisco 2960 switch. I want to enable POE+ on this switch.Is there any special command which will enable POE+ in the switch ? If so please let me know how to enable POE+
Hi, Switch 1 and switch 2 connected via trunk. Both configured with new vlan 3.When creating new vlan 3, is it need to include "Spanning-tree vlan 3 priority 8192"- Sw 1 and "Spanning-tree vlan 3 priority 16384"-Sw 2?What will happen for those switch...
I am trying to capture traffic between two nodes on the network using an ACL (log) + a debug against that ACL but I don't see the traffic.Here's the ACLaccess-list 199 permit ip host 10.0.100.68 host 10.0.100.5 logwhen 10.0.100.68 pings 10.0.100.5 I ...
Hi,I would like to know what are the commands available on Catalyst 9300 IOS-XE devices for checking packet drops in the forwarding path. I am seeing an issue where PBR route-map and ACL is showing hit counts - but packet is getting dropped. I checke...
Where can i find Catalyst 9k visio stencils?
Hi All,I am looking at the Port-Channel configurations between these two devices and noticed that on one side it seems Native VLAN tagging is disabled and on the other side it appears to be enabled. Does anyone see an issue with these interface setti...
Resolved! Ping Across Vlan
Need some help please. I have several 2960X's daisy chained using the SFP ports. The SFP ports are set to trunk an show both VLANS activeOn each switch I have set a VLAN 1 Management IP .28, .29.30 and so forthAny host that has an IP address of 172....
Resolved! Catalyst 9500 Bundled Mode Downgrade
Hello There,I am looking to downgrade a couple of Catalyst 9500 switches to 16.12.x from 17.x. Switches are running in the bundled mode. As of my understanding, in the bundled mode, you just need to change the boot variable to upgrade or downgrade. M...
I have some Cisco Catalysts 3850 switches, model WS-C3850-12X48U-S.I noticed that the airflow is currently rear exhaust. Can the fans and power supplies be replace withportside exhaust? We are moving this equipment to a data center with specific hot ...
Resolved! Keyboard Interactive authentication
I upgraded my cisco 3850 switch from 3. to 16.9 . Ones i reloaded it asking for Keyboard interactive authentication password and for switch which i dont know.How can i get back to usermode.
This is the first time i m learning networking. In netacad course book it was mentioned when a switch receives a tagged fram with same vlan id as native vlan on a trunk port, it will drop the frame.so how an attacker is sending a tagged frame with na...
Hi, I need to change the System MTU on a 3850 to the maximum value - 9198. I will have a client facing SVI also set to 9198, but then I need a service provider facing SVI to be 9000, as the service provider MTU is set to 9000 and we are running OSPF ...
