Different Ways to Manipulate an EIGRP path

Today I'm going to be talking about the possible ways we could manipulate paths in our EIGRP routing domain. Let's take a look at our topology...   R1 has two loopback interfaces. Loopback 1 - 10.0.1.1/24 Loopback 2 - 10.0.2.1/24 These will represent the networks we are trying to reach. The link between R1 and …

Path Manipulation via EIGRP and OSPF Redistribution

On IOSV1 we have two networks that we need to reach from IOSV4. 1.1.1.0/24 1.1.2.0/24 1.1.3.0/24 The link between IOSV2 and IOSV4 is 10.0.3.0/30 The link between IOSV3 and IOSV 4 is 10.0.4.0/30 The situation: Our company runs OSPF, and we just acquire d another company that runs EIGRP. We are keeping their topology and …

BGP – Advertising IPv4 and IPv6 in a single BGP session!

First we're going to be creating a eBGP session with IPv4 and then we will advertise routes for IPv6 Prefixes over that session. R2 is in AS 1. R3 is in AS 2. R2 has a L00pback interface with an IPv6 address of 2002:2::2/128 R3 has a L00pback interface with an IPv6 address of 2003:3::3/128 …

BGP – How to configure basic Multipath/Load balancing

As you may know BGP HAS to pick a best route, and that is the route that will be put into our global routing table. Recall that our IGPs have a maximum-paths command that state how many paths can be in the routing table? BGP supports the "maximum-paths" command, however it behaves differently than it …

BGP – Changing MED/Metric to Influence Inbound Routing with Lab Examples

The reason I decided to make this post is because all other MED/Metric changing tutorials out there only include an example of one prefix. I wanted to make one that looked more realistic. Before we begin let's overview the BGP MED attribute: MED/Metric are synonymous MED influences how your eBGP neighbors should enter your autonomous …