ADVANCED SERVICES

Let’s illustrate how to configure Static NAT. At this point, if you are unfamiliar with NAT then please read this post here first. We will use the following topology to make our point… Here, we have Host A which needs to connect to the web server. Host A IP address is 192.168.1.1 (Inside Local) which [ Read More ]

Both Network Address Translation (NAT) and Port Address Translation (PAT) perform similar functions with regards to remapping RFC 1918 IP address(es) to IP address(es) on an external network segment. With the proliferation of IoT and the rapid extension of IPv4 addresses, this technology has become essential with regards to conserving Private IP address Pool. In [ Read More ]

In this topic, we will talk about MPLS L3 VPN Central Services. At this point, if you are unfamiliar with MPLS then please read the first portion of this post here explaining in details how MPLS works. MPLS Central Services is also referred to as MPLS Common Services and its goal is mainly to allow distinct [ Read More ]

In this post, we will look into setting up MPLS VPN and use BGP as our routing protocol between the PE router and the CE router. We won’t go deeper into the MPLS VPN backbone configuration but just the PE-CE segment. At this point, if you are unfamiliar with MPLS VPN, please read this post here. [ Read More ]

In this post, we will look into setting up MPLS VPN and use OSPF as our routing protocol between the PE router and the CE router. We won’t go deeper into the MPLS VPN backbone configuration but just the PE-CE segment. At this point, if you are unfamiliar with MPLS VPN, please read this post here. [ Read More ]

In this post, we will look into setting up MPLS VPN and use EIGRP as our routing protocol between the PE router and the CE router. We won’t go deeper into the MPLS VPN backbone configuration but just the PE-CE segment. At this point, if you are unfamiliar with MPLS VPN, please read this post here. [ Read More ]

In this post, we will look into setting up MPLS VPN and use RIPv2 as our routing protocol between the PE router and the CE router. We won’t go deeper into the MPLS VPN backbone configuration but just the PE-CE segment. At this point, if you are unfamiliar with MPLS VPN, please read this post [ Read More ]

MPLS (Multiprotocol Label Switching) is technology which allows fast packet forwarding using “Labels” within a given network. VPN (Virtual Private Network) is then implemented to provide a connected oriented service by ensuring end-to-end reachability between non directly connected nodes. At this point, if you are unfamiliar with MPLS then please read the first portion of this [ Read More ]

An Offset List is routinely used to control path selection by influencing routing metrics of learned routes of either EIGRP or RIP. It is important to note that Offset List are only used with Distance Vector Protocol which means that we can not use it with OSPF as it is a Link State protocol. It [ Read More ]

Prefix lists are typically used in route-maps or packet filtering as they represent an alternative to access-lists. However, prefix-lists in comparison with access-lists allow us to match prefixes at a much more granular level. A prefix is a portion of an IP address, starting from the far left bit of the far left octet. So, [ Read More ]