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A MAC Address (Media Access Control Address) is a unique hardware identifier given to every network interface card (NIC), whether it’s wired (Ethernet) or wireless (Wi-Fi). Think of it like a permanent serial number for your network card, used at the data link layer (Layer 2) of the OSI model. ✅ Format of a MAC
👉 In short:A minimum network = 2 devices + NICs + connection medium + protocol (TCP/IP).For bigger networks, you add switches, routers, servers, firewalls, etc.
A computer network is a collection of two or more computers (or devices like printers, servers, switches, routers) that are connected together to share resources (files, applications, printers), communicate, or access the internet. Example: Your home Wi-Fi is a small computer network. ✅ Types of Networks Networks are classified mainly by size/area covered: 👉 Other
⚙️ About HA in Meraki MX67 🛠 How to configure HA in Meraki MX67 ✅ 1. Physical setup Tip: Make sure the heartbeat cable is direct or via switch but must be in the same VLAN/subnet. ✅ 2. Configure in Meraki Dashboard ⚠ Both MXs must be in the same network in the Meraki Dashboard.
✅ Goal: Limit each user to: (You can change numbers as needed.) 🛠 Step-by-step Step 1: Create Traffic Shaping Policy ✅ Save Step 2: Apply to individual users Repeat for each user you want to limit. Step 3: Confirm the firewall rule matches Bandwidth limit only applies to traffic that matches a firewall rule. Step
To check the High Availability (HA) status in an Aruba Mobility Controller, you can use the CLI (Command Line Interface) or the Web UI. Here’s how you can do it: 🔧 Using CLI (SSH or Console): show ha This will display the HA configuration and status including: 💡 Additional Useful CLI Commands: Command Description show
Here’s how to configure SNMP v2c on an Aruba (HPE) switch, specifically for the ArubaOS-Switch series (formerly HP ProCurve). 🔧 SNMP v2c Configuration Steps – ArubaOS-Switch (CLI) 1. Enable SNMP Service (if not already enabled) switch(config)# snmp-server 2. Set the SNMP Read-Only Community String switch(config)# snmp-server community public operator-unrestricted 3. Set the SNMP Read-Write Community
To configure dual internet connections using BGP on a Cisco router for redundancy and failover, follow these key steps and considerations: Basic BGP Configuration Establish BGP Sessions with Both ISPsConfigure BGP neighbors using the ISPs’ AS numbers and your assigned ASN. For example:router bgp 65001neighbor 203.0.113.1 remote-as ISP1_ASNneighbor 198.51.100.1 remote-as ISP2_ASNaddress-family ipv4network 192.0.2.0 mask 255.255.255.0
🧰 Full Python Script – Meraki Switch Automation import requests# ConfigAPI_KEY = “YOUR_MERAKI_API_KEY”ORG_ID = “YOUR_ORG_ID”NETWORK_ID = “YOUR_TEMPLATE_BOUND_NETWORK_ID”DEVICE_SERIAL = “YOUR_SWITCH_SERIAL” # Example: Q2XX-XXXX-XXXXBASE_URL = “https://api.meraki.com/api/v1″HEADERS = { “X-Cisco-Meraki-API-Key”: API_KEY, “Content-Type”: “application/json”}# — VLAN FUNCTIONS —# ✅ Create VLANdef create_vlan(vlan_id, name, subnet, appliance_ip): url = f”{BASE_URL}/networks/{NETWORK_ID}/vlans” payload = { “id”: vlan_id, “name”: name, “subnet”: subnet, “applianceIp”: appliance_ip
🔐 Step 1: Setup Make sure you have: 🧠 Step 2: Python Script import requests# Replace with your Meraki API keyAPI_KEY = “YOUR_MERAKI_API_KEY”ORG_ID = “YOUR_ORG_ID”NETWORK_ID = “YOUR_TEMPLATE_BOUND_NETWORK_ID”DEVICE_SERIAL = “YOUR_SWITCH_SERIAL” # e.g., Q2XX-XXXX-XXXX# Meraki base URLBASE_URL = “https://api.meraki.com/api/v1″# HeadersHEADERS = { “X-Cisco-Meraki-API-Key”: API_KEY, “Content-Type”: “application/json”}# Step 1: Create VLANdef create_vlan(vlan_id, name, subnet, appliance_ip): url = f”{BASE_URL}/networks/{NETWORK_ID}/vlans”
The Lazy Networker 