How to advertise a default route into OSPF

Link between IOSV1 and IOSV2 : 192.168.1.0/24 Link between IOSV2 and IOSV3: 192.168.2.0/24 Situation: We are running OSPF in our network. IOSV1 is hypothetically connect to an ISP router. Our ISP does not form an OSPF neighborship with us. That means that IOSV2 and IOSV3 can only reach the networks inside the OSPF routing domain. …

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 …