# 1. Nexus Core Switch

# 1. Installation



# 2. Current VLAN Configuration

\# Port Configuration

This section outlines which ports are connected to what. Since, we only use the top 24 ports it will only have the odd numbers inside the set \[1,47\].

Ethernet1/1 <----> Patch-01 <----> WAP1 <----> Trunk port <----> VLAN: ALL <----> Native VLAN: MGMT  
Ethernet1/3 <----> Patch-02 <----> EMPTY   
Ethernet1/5 <----> Patch-03 <----> TV1 <----> Access port <----> VLAN: IOT   
Ethernet1/7 <----> Patch-04 <----> TV2 <----> Access port <----> VLAN: IOT   
Ethernet1/9 <----> Patch-05 <----> Envoy <----> Access port <----> VLAN: IOT  
Ethernet1/11 <----> Patch-06 <----> EMPTY <----> Access port <----> VLAN: IOT

Ethernet1/13 <----> Patch-07 <----> EMPTY   
Ethernet1/15 <----> Patch-08 <----> EMPTY  
Ethernet1/17 <----> Patch-09 <----> EMPTY  
Ethernet1/19 <----> Patch-10 <----> EMPTY  
Ethernet1/21 <----> Patch-11 <----> EMPTY  
Ethernet1/23 <----> Patch-12 <----> EMPTY

Ethernet1/25 <----> Patch-13 <----> MGMT PVE 1 <----> Access port <----> VLAN: MGMT   
Ethernet1/27 <----> Patch-14 <----> IPMI PVE 1 <----> Access port <----> VLAN: MGMT  
Ethernet1/29 <----> Patch-15 <----> MGMT R1 <----> Access port <----> VLAN: MGMT  
Ethernet1/31 <----> Patch-16 <----> PC1 <----> Access port <----> VLAN: MGMT  
Ethernet1/33 <----> Patch-17 <----> BackupNas <----> Access ort ,----.> VLAN:MGMT  
Ethernet1/35 <----> Patch-18 <----> EMPTY

Ethernet1/37 <----> Patch-19 <----> EMPTY  
Ethernet1/39 <----> Patch-20 <----> EMPTY  
Ethernet1/41 <----> Patch-21 <----> PVE1 1Gig  
Ethernet1/43 <----> Patch-22 <----> VLANs PVE2 <----> Trunk port <----> VLAN: All <----> Native VLAN: MGMT  
Ethernet1/45 <----> Patch-23 <----> VLANs Backup PVE1 <----> Trunk port <----> VLAN: All   
Ethernet1/47 <----> NOT CONNECTED

10GEthernet1/49 <----> NOT CONNECTED  
10GEthernet1/50 <----> Patch-24 <----> VLANs PVE1 <----> Trunk port <----> VLAN: All  
10GEthernet1/51 <----> NOT CONNECTED  
10GEthernet1/52 <----> Port Router R1 (ix0) <----> Trunk port <----> VLAN: All

  
For example, if you have VLAN 1 with devices in the 192.168.1.0/24 subnet and VLAN 2 with devices in the 192.168.2.0/24 subnet, the router will have two sub-interfaces configured: one with an IP address in the 192.168.1.0/24 subnet for VLAN 1 and another with an IP address in the 192.168.2.0/24 subnet for VLAN 2.

It's important to note that VLANs are layer 2 constructs, and routing between VLANs is a layer 3 function handled by the router. The router uses these IP addresses to route traffic between VLANs and to external networks.

  
Make sure that management interface is only accessible at a specific IP address

# 2. Configure VLANs



# 2. SSH

To login into the Cisco Nexus server with SSH you need to use the following adjusted ssh command. Assuming you are on a linux computer. In this specific case this works for Debian Gnome.

```bash
ssh -o HostKeyAlgorithms=+ssh-rsa dpasn@10.18.81.151
```

Passsword: Groustercoreswitch13

To allow multiple VLANs on a Cisco Nexus switch, use the command: switchport trunk allowed vlan <vlan-list> where <vlan-list> can be a range or specific VLAN IDs. For example, to allow VLANs 10, 20, and 30, you would enter switchport trunk allowed vlan 10,20,3