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Showing posts with the label Routing

How to Improve EIGRP Convergence time

To  improve EIGRP convergence time, you can work and manipulate with Feasible Successors, EIGRP Query process, Load balancing etc. I will go through each of them shortly, just to give you hint what parts of the EIGRP can be touched to improve convergence. By having Feasible Successors all the time You can have situations, wehre you don’t have Feasible successor Routes. An alternate Route to desired destination may present but EIGRP has simply rejected because its Reported Distance (RD) is greater than Feasible Distance (FD) in order to avoid potential loops. Here you can tune EIGRP Metric and convert those Alternate Route into Feasible Successor Routes. By configuring EIGRP so that a Router has Feasible Successor, the whole Query process can be avoided, thus improves EIGRP Convergence incase of Route Failure. Note:-  Th IOS Command  show ip eigrp toplogy , only shows Successors and Feasible Successors. To check all available route to particular destinations which ...

How to Configure a Router to block websites with Access-List

Here are the simple steps to follow to block a website to the user who are accessing Internet through your Router Step 1: Configure a DNS server Let’s say we want to block access to the creatively named www.block-site.com. We don’t know the IP address, and we don’t want to know it. When we configure the Access List in the router—the Cisco IOS can look it up and fill it automatically. To do this, we need at least one DNS server configured on the router. To configure a DNS server, use the ip name-server command. Here’s an example: Router(config)# ip name-server 1.1.1.1 2.2.2.2 In this case, we configured a primary and a backup DNS server for the router to use to resolve DNS names. This doesn’t affect any traffic flowing through the router; the router will use these DNS servers when we ping a Web server by name. Here’s an example: Router# ping www.khatrinetworks.blogspot.com Translating “www.khatrinetworks.blogspot.com”…domain server (1.1.1.1) [OK] Type escape sequence to abort. ...

How to add an IP Route to Windows Routing Table

On some system connected to complex and complicated network, administrator may require to configure a more advanced network topology with additional routing routes requirement. For example, customized route is required when the NIC interface does not know where to route to an IP address on network segment which does not belong to the same subnet, such as router at 192.168.1.1 to access node on 10.1.1.1 and subnet mask of 255.255.255.0. In any cases, administrator or user can add a route into TCP/IP Routing Table using DOS command prompt with route command. Add IP Route Rules into Windows Routing Table in Command Prompt with Route Command 1. Click Start -> Run (or at Start Search in Windows Vista or Windows 7), and type in Cmd, then press Enter to open a command prompt window. 2. The syntax of route command to add a routing table entry: route ADD [destination IP address or subnet] MASK [subnet mask] [gateway IP address] [metric] IF [interface] Not all parts of the syntax is ...