A brand of network switches by Cisco Systems.
Questions tagged [cisco-catalyst]
113 questions
0
votes
3 answers
What is wrong with ESXi VMKernel Port in Active/Active configuration?
I have the below, simplified configuration:
Essentially, I have an ESXi host with two physical network adapters. Each adapter plugs in to a different switch. Each switch is connected via a trunk port. A PC is connected to one of the switches. A…
Appleoddity
- 3,290
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0
votes
1 answer
Cisco Catalyst 2960 Allow Management from Single IP Address
Our organization was recently required to use MFA for logging into our networking hardware. We're accomplishing this by using Royal Server and Royal TS, and limiting the source IP for SSH and web GUIs to just the IP address of the Royal Server. HP…
emike09
- 13
- 4
0
votes
1 answer
IGMP v3 JOIN sent but no traffic from switch
I'm trying to join an IGMP multicast stream from a Centos 8 machine but after sending a JOIN, there is no traffic coming from the switch.
Simple connection:
MUX <-----------> cisco3850 <--------> Centos8
192.168.117.13 …
Danny
- 235
- 2
- 10
0
votes
0 answers
Unable to swap old server with new one as the switch it's plugged into is unaccessible
Hopefully the title covers this question but, it's pretty straightforward.
At work, we have an old DMZ Server we'd like to replace with a newer model. Unfortunately, when we were ready for the swap, the NIC didn't light up (no link lights). So we…
Abraham Zinala
- 101
- 1
0
votes
1 answer
Is physical connection sufficient to register a MAC address to a switch?
I have a computer connected to an unlabeled RJ-45 port. Because it is not labeled, I do not know which switch port the computer is plugged into.
My initial thought was that I could login to the Catalyst switch and run the following command to find…
JasonF
- 23
- 6
-1
votes
1 answer
DNS static work but DNS dynamic from dhcp pool doesn't work
So we have 2 dns servers,
DNS-Server-A: 20.20.33.82 (normal dns server which I don't have access to it)
DNS-Server-B: 172.30.11.254 (palo alto with dns proxy)
Core Switch DHCP pool configuration:
ip dhcp pool wifi-user
network 172.20.12.0…
-1
votes
1 answer
Cisco - what is the purpose of a gigabit ethernet switching module
Cisco noob here
Recetly while looking for a cisco switch and router combination for my CCNA studies i won this bid for a (I added the bid to keep track of it and i ended up winning it)
Cisco-4500-Series-WS-X4424-GB-RJ45-Gigabit-Ethernet-Switching…
Malinda
- 29
- 4
-2
votes
3 answers
Cisco switch inter-vlan access
I have Cisco Catalyst 2960-s switch and I want to configure three Vlans (A; B; C)
I want to :
Allow traffic between A and B
Allow traffic between A and C
Block traffic between C and B
or if there is other method to permit/deny access between…
Ould Abba
- 119
- 3