With secure Internet connectivity becoming more of a business necessity, being able to resolve problems with BGP and GRE tunnels is a key skill for any network admin. In this course, Troubleshooting Cisco Networks: Internet Security for CCNP R&S 300-135 TSHOOT, you'll learn to troubleshoot problems with BGP and GRE tunnels. First, you'll learn to troubleshoot eBGP and iBGP peerings. Next, you'll learn to troubleshoot redistribution between BGP and IGPs. Finally, you'll learn how troubleshoot GRE and IPsec tunnels. When you're finished with this course, you'll have the skills and knowledge needed to troubleshoot almost any problem with BGP or GRE tunnels, including problems found on the CCNP TSHOOT exam. Software required: Cisco VIRL.