How to configure RADIUS on Cisco switch (IOS)

Technology: Security Area: AAA Vendor: Cisco Software: AAA feature compatibility required Platform: Catalyst platforms, Routing platforms   Introduction RADIUS is a security feature working in client/server mode. It provides authorization access to the network and combines the authentication and authorization processes. What’s essential, RADIUS cannot control the authorization level of users. Nowadays, all RADIUS server […]

Technology: Firewall  Area: Routing and Switching Vendor: Cisco Software: Cisco Adaptive Security Appliance (ASA) Platform: Cisco ASA 5500, 5500-X     Description:  The Open Shortest Path First (OSPF) is an interior gateway routing protocol that uses link states for path selection and propagates link-state advertisements. OSPF uses a link-state algorithm to build and calculate the shortest path to all known destinations. […]

Technology: Firewall  Area: Routing and Switching Vendor: Cisco Software: Cisco Adaptive Security Appliance (ASA), Firepower (ASA-OS) Platform: Cisco ASA 5500 Series, 5500-X Series, Firepower with ASA-OS   Description:  Enhanced Interior Gateway Routing Protocol (EIGRP) provides more control over the routes that are allowed to be sent or received and also allows the option of  route redistribution configuring. Cisco ASA can redistribute routes […]

Currently the majority of vendors has started to implement the IPv6 addressing scheme, hence IPv6 routing protocols are required to provide the routing functionalities. There are numerous IPv6-capable routing protocols been developed, such as RIPng, EIGRPv6, and OSPFv3. RIPng (RIP for IPv6) is designed to provide routing functionalities for an IPv6-based network. It is the next […]

Technology: Routing Area: NHRP Vendor: Cisco Software: 10.0, 10.2-3, 11.0-3, 12.0, 12.0T, 12.1, 12.1T Platform: Catalyst platforms, Routing platforms The Hot Standby Routing Protocol HSRP is a proprietary protocol from Cisco. It is a routing protocol that provides backup to a router in the event of link or hardware failure. Using HSRP, several routers are connected […]

Technology: Routing Area: EGP Vendor: Cisco Title: BGP aggregation Software: 12.X , 15.X, IP Services Platform: Catalyst 3560, 3750, 3850, 4500, 6500, ISR/ASR Routers   BGP community stands for the attributes which can easily be added to the group of prefixes to marked them with the same meaning. With that possibility we can manipulate the […]

Technology: Routing Area: IGP/EGP Vendor: Cisco Title: BGP Route Reflector Software: 12.X , 15.X, IP Services Platform: Catalyst 3560, 3750, 3850, 4500, 6500, ISR/ASR Routers   Functionality of route reflections was designed to avoid a necessity of configuring a fully meshed iBGP peering across entire autonomous system. The router which plays this role reflect all […]

Technology: Routing Area: Static routing Vendor: Cisco Title: Floating Static Routing Software: 12.X , 15.X, IP Services Platform: Catalyst 3560, 3750, 3850, 4500, 6500, ISR/ASR Routers   In situation when a router has two identical routes the decision regarding which one gets installed in the routing table is based on the lowest administrative distance. With […]

Technology: Routing Area: PBR Vendor: Cisco Title: Local Policy Base Routing Software: 12.X , 15.X, IP Services Platform: Catalyst 3560, 3750, 3850, 4500, 6500, ISR/ASR Routers   Local policy based routing in contrary to normal policy feature affects purely locally generated traffic by the router instead of traffic traversing the router. It offers the same […]

Technology: Routing Area: PBR Vendor: Cisco Title: Reliable Policy Base Routing Software: 12.X , 15.X, IP Services Platform: Catalyst 3560, 3750, 3850, 4500, 6500, ISR/ASR Routers   Policy based routing without an optional examination logic configured  is not able to recognize any issue on the network. To provide more reliable solution early defined policies could […]