Hi Aaradhana  You will have to run command for neighbor R3 , not for R6 on  R4 . Because r4 is advertising routes to R3 of R6 . So , you have to run following command on R4 to modify next-hop -- R4(config)#router bgp 12345 R4(config-router)#neighbor 123.3.3.3  next-hop self After that clear the BGP process with the following command --- R4# clear ip bgp * soft Hope it will be helpful.... (more)

Hi  Aaradhana 

Can you please send the database table of R2 and R3 . It can help more to understand that  what will be the problem .  Because , i have looked that on R2 you has configured virtual-link . which can be the cause of problem . 

Hi please recheck the answer , I have modify this answer . Because it is not giving the option of a another answer .  If you were send the configuration of R1 or R2 that how you set the tag value for routes , it will be more helpful to solve the issue . But i will try to explain what will be the issue in this configuration .  According to me , you are matching tag 1111 in route-map on R3 ... (more)

  Hi As you mentioned here that packets are taking path from both R3 and R4 because of same metric . The reason here is that the whenever a cisco router forward traffic it will match the destination ip address in routing table and in which longest prefix match , it will send packet by that path . In this task , R1 and R2 receive R5 loopback on /24 from both R3 and R4 , so whenever they will gen... (more)

Hello Vishav Mehta ,  As you mentioned here that subnet is 12.1.1.0 and you want 2 valid ip address which you can assign to any machine . To perform this task , you have to use subnet mask of /30 . By which block size is 4 and valid ip address are 2 because 1 is network and 1 is broadcast ip address .                         12.1.1.0/30  128     64      32      16  ... (more)

Hello Aaradhana joshi ,  No , you don't have to remove all the interface setting configured in Task 2 , while performing Task 3 (A) . Because from R3 , you are sending individual routes and from R4 sending summary routes , so interface characteristics doesn't effect this task . And in task 3 , we are not  manipulating the path .   But as given in guidelines for the task is recomm... (more)

Hello Debasish Roy  Port cost - It is the cost of a port which is calculated by bandwidth of link and inversely proportional to bandwidth of link . The following table describe the port cost value for different bandwidth - Path cost - The path cost is the metric stp uses to calculate the shortest path to elect root port to reach the root-bridge . The path cost is based on the speed of the i... (more)

Hi Everyone ,  In this case , you have to use concept of LEAK MAP . But in first you have to perform the following configuration on R3 and R4 - On R3 - You have to summarize all of the routes of R1 and R2 on /16 with the following commands -  With summarization You have to use of concept of LEAK-MAP in which we have to leak the loopbacks of R1 and R2 given in task. The  configuration is ... (more)

Hello Keshav , Good Day. I would like to answer your quarries & thank you for your question. Based on router behavior, Router breaks the broadcast domain. Suppose a machine connected with Switch and further switch connected with multiple router then if any machine generate a ARP request for any particular prefix which is belongs to any specific router then ARP request reach to switch & switch ... (more)

A ROUTER CONFIGURED WITH THE "IP CLASSLESS "  COMMAND TRIES TO MATCH THE SPECIFIC SUBNET AND IGNORE THE CLASS ( A , B , C)  OF NETWORK AND ONLY USING DEFAULT ROUTE WHEN NO MATCH IS MADE .