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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VPN technologies – DMVPN – Phase 2

Following my previous article on DMVPN phase 1. This time I’m going to configure DMVPN phase 2.   In phase 2, we will be able to dynamically build spoke-to-spoke tunnel. VPN technologies – DMVPN – Phase 2 – configuration:   The configuration needs to be changed on the spoke routers. The tunnel mode needs to […]

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Categories R&S

VPN technologies – DMVPN – Phase 1

Starting a new series about DMVPN. In this post, I will configure a basic DMVPN network, with one hub and 2 spoke sites.     Here is the link for the cisco documentation about DMVPN: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sec_conn_dmvpn/configuration/15-mt/sec-conn-dmvpn-15-mt-book/sec-conn-dmvpn-dmvpn.html   And the link for everything related with NHRP: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_nhrp/configuration/15-mt/nhrp-15-mt-book/config-nhrp.html   And one very good article from INE with very […]

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VPN technologies – MPLS-L3VPN – MP-BGP

In this post, I will focus on configuring MP-BGP which is the protocol used between the PE router.   VPN technologies – MPLS-L3VPN – MP-BGP – Theory :   This is the link to the Cisco documentation for configuring MPLS-VPN. http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_l3_vpns/configuration/15-mt/mp-l3-vpns-15-mt-book.html   MP-BGP should be configured between the PE routers and is used to advertised the […]

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Categories R&S

VPN Technologies – MPLS – Label Distribution Protocol

Time to tackle the VPN technologies part and this start with MPLS. In this first post, we will build a MPLS network using Label Distribution Protocol.   VPN Technologies – MPLS – Label Distribution Protocol – Theory:   Here are the link to the Cisco documentation regarding MPLS: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_basic/configuration/15-mt/mp-basic-15-mt-book.html http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ldp/configuration/15-mt/mp-ldp-15-mt-book.html   VPN Technologies – MPLS […]

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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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L3 technologies – EIGRP – Path Selection

I will now have a look at EIGRP path selection. For this I have extended our topology.   L3 technologies – EIGRP – Path Selection – Physical network diagram:   L3 technologies – EIGRP – Path Selection – Feasibility Condition: Here is the definition of the Feasibility condition: “If, for a destination, a neighbor router […]

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L3 Technologies – EIGRP – Authentication

In this post, I will have a look at the different authentication methods that can be used with EIGRP.   Cisco link for the configuration guide: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_eigrp/configuration/15-mt/ire-15-mt-book/ire-sha-256.html   L3 Technologies – EIGRP – Authentication – Physical network diagram   L3 Technologies – EIGRP – Authentication – MD5:   MD5 is the less secured method to authenticate EIGRP. […]

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