Categories R&S

IPv6 – Advanced EIGRPv6

Back to IPv6, this time for more advanced configuration. In this post I will focus on EIGRPv6.   IPv6 – Advanced EIGRPv6 –Network Diagram:   IPv6 – Advanced EIGRPv6 – configuration:   I have already setup the basic EIGRPv6 configuration, which means that all the routers interfaces are part of EIGRP 100. From SW51, we […]

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Categories R&S

L3 Technologies – EIGRP – Summarization

In this post I will have a look at the different ways to perform route summarization with EIGRP.   Here is the link to the Cisco documentation about EIGRP summarization: Cisco EIGRP IOS 15.3 Summarization   L3 Technologies – EIGRP – Summarization – network diagram   L3 Technologies – EIGRP – Summarization – Theory: By […]

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Categories R&S

OSPF – Implement and troubleshoot route summarization – External summarization

Let’s now have a look at external summarization.   Theory: This is specific to external routes redistributed in OSPF. We need to implement this on the router that is doing the redistribution.   Requirements: Create three new loopbacks on R5 (Lo 10,11,12) and R6 (Lo 10,11,12). Make sure those new IP addresses are summarize in […]

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Categories R&S

OSPF – Implement and troubleshoot route summarization – Internal summarization

Let’s move to route summarization. First internal summarization.   Theory: OSPF can summarize LSA type 3 on an ABR.   Requirements: Use internal summarization so that R3 prefer to go through R1 when trying to reach R6 ip 172.10.1.17   Diagram:   Configuration and verification: For testing purpose we will create some new loopback interfaces […]

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