Contents Network Topology Network Address Translation (NAT) Overview What is Inside and Outside? NAT and Routing – Order of Operations Initial Configuration Scenario 1 – PAT, IPsec DMVPN and Internet Access Scenario 2 – Basic Static NAT Translation Scenario 3
Contents AS65001 Physical Topology AS65001 Multicast Topology – Auto RP User 1 Joins 224.1.1.1 Server1 sends Multicast Traffic to 224.1.1.1 Building the Shortest-Path Tree (SPT) Designated Router (DR) Election PIM Assert Mechanism – Forwarder Election AS65002 Physical Topology AS65002 Multicast Topology
Contents Topology Description Crypto Maps GRE over IPsec with Crypto Maps Fragmentation GRE over IPsec with IPsec Profile Fragmentation Virtual Tunnel Interface (VTI) Fragmentation Configuration Summary Topology Description Internet Protocol Security (IPsec) is a standard based security framework
Contents Network Diagrams Physical Topology IP Addressing and Customer IGP/BGP Topology MPLS, BGP VPNv4, VRF and Redistribution Topology BGP Multipath – BGP VPNv4 Full Mesh BGP Multipath – iBGP BGP Multipath – eiBGP BGP Multipath – BGP VPNv4 Route Reflector
Contents Topology EIGRP Convergence Process Overview Feasible Successors and Feasibility Condition Query Domain and Query Propagation Features to improve EIGRP Convergence Time Feasible Successor Loop Free Alternate Fast Reroute (LFA FRR) Network Summarization Route filtering Stub Router Different EIGRP AS
Contents Topology. OSPF Topology. OSPF Forward Address Type 5 LSA. OSPF Forward Address Type 7 LSA. Case of Study 1 – Cost change. Case of Study 2 – Configure the Translator Role. Case of Study 3 – Clear Forward Address.
Contents Topology. OSPF Topology. OSPF Database Overview. Type 1 LSA – Router LSA. Type 2 LSA – Network LSA. Type 3 LSA – Summary LSA. Type 4 LSA – Summary ASBR LSA. Type 5 LSA – Autonomous system External LSA.
Content Overview Design Drivers Cost Efficiencies Network flexibility and elasticity Network resiliency to ensure business continuity Standardization and best practice implementations Security Modularization Design Principles Failure Domains Hiding information Hierarchical design networks Layer Network Design Collapsed Core Network Design Layers
Contents Topology Generic Routing Encapsulation (GRE) Tunnels GRE Configuration IP in IP Tunnels IP in IP Configuration Recursion Errors in tunnel configuration Topology Generic Routing Encapsulation (GRE) Tunnels GRE is a tunneling mechanism able to transport packets of one protocol