Let’s up the stakes for this contest by giving two questions instead of one unlike what we have done for previous contests. This contest will focus on the workings of the Border Gateway Protocol (BGP). The first question deals with how to tweak the default behavior of BGP to suit our needs. The second question presents a troubleshooting scenario which involves BGP.
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Tags: bgp, border gateway protocol, cisco, ebgp, ebgp over loopback interfaces, icontests, networking contest, remotely triggered black hole, rtbh, troubleshoot
Tags: cisco, eigrp, icontests, routing, troubleshoot
Using the network diagram below and the output from the show commands on the routers, identify and resolve why a host on the 192.168.20.0/24 subnet cannot reach a host with IP address 172.16.0.100. (more…)
Tags: cisco, icontests, nat, network address translation, zbf, zone based policy firewall
In the network diagram below, there are no routes configured on the routers, yet there should be connectivity among all the routers; therefore, NAT is configured on R1. Zone-based policy firewall (ZBF) is also enabled on R1. TCP, UDP and ICMP traffic should be inspected from the inside to the outside. ICMP from R3 to R2 is the only traffic that should be inspected from the outside to the inside. All other traffic should be dropped.