HSRP (Hot Standby Routing Protocol)

In this article, we shall try to make an understanding about cisco proprietary redundancy routing protocol call HSRP ( Hot Standby...

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Virtual Router Redundancy Protocol – TechAcad.net

The Virtual Router Redundancy Protocol (VRRP) is an election protocol that dynamically assigns responsibility for one or more virtual routers to...

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How to Upgrade Palo Alto HA Firewall Pair to PAN-OS 9.1

In this article we shall learn to upgrade Palo Alto NGFW OS which are deployed in HA Pair. Below is the...

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CCNP Lab 01: Inter-VLAN Routing | Router on a Stick

ScenarioIn this activity, you will demonstrate and reinforce your ability to implement inter-VLAN routing, including configuring IP addresses, VLANs,...

VRRP – Tracking the metric of a route

We are having two routers as below and VRRP is configured for LAN. R1 is to be the master...

Jan 7 · >

How to set up an A (address) record for my domain?

In this post i shall demonstrate how to setup an A record for my domain, so lets get started....

Jan 7 · >

BGP – ORF (Outbound Route Filtering)

We all knows that BGP is slowest protocol. But it can be more chatty protocol also. Suppose, You are...

Jan 6 · >

Dynamic ARP Inspection with NON-DHCP hosts

Today, We will understand the ARP inspection that how can it impact non DHCP hosts. We are having R1,R3...

Dec 31 · >

OSPFv3 Neighbors do not need to be on same subnet

We will use below topology and different subnet at both end, then we will check the adjacency and try...

Dec 30 · >

TCP Load Balancing Using Destination NAT

We will use ip nat inside destination command to split up the load from what looks one global destination...

Dec 30 · >

How OSPF capability transit can prevent virtual-link routing loops

We will understand the use of capability transit command. By default this enabled. So I will disable it and...

Dec 30 · >

Overlapping/Duplicate AS-External-LSA IDs – Network Rare

The LSA uses the network address as an identifier. If one router is generating multiple Type 5 LSAs with...

Dec 30 · >

Multicast TTL-Threshold – Network Rare

As per books, The TTL of a packet must be higher than the threshold to be forwarded. From the...

Dec 30 · >