Category: Cisco

Trouble shoot with TDR

This article is another example of trouble shooting by putting multiple pieces together. While it relies upon existing knowledge of the environment in which the article is based it should prove to be a good example of a trouble shooting process that will hopefully be able to spark some creative thinking the next time you …

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Permanent link to this article: http://www.packetpilot.com/trouble-shoot-with-tdr/

IP SLA for Single Default Route Change

The scenario goes like this. You are working at your office (R1) and need to change the IP address and default route on the remote device (R2). The issue a factor of two things. The first is the fact that R2 is connected to your network with only one link. The other issue is R2 …

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Permanent link to this article: http://www.packetpilot.com/ip-sla-for-single-default-route-change/

Initial Router Setup For Remote Access

[notice]PacketPilot / P2Labs does not guarantee any certification results inĀ using the content of this website. Please keep in mind these are free tools to aid in your learning and certification goals. All efforts are made to ensure the accuracy and content in these labs. Hard work, dedication, and official Cisco training materials are recommended for …

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Permanent link to this article: http://www.packetpilot.com/initial-router-setup-for-remote-access/

SRT: Offline type 7 decrypt

I was recently working on deploying a new device into our network infrastructure. I was working off a configuration template that had a standard arguments for AAA leveraging TACACS+. I was offsite and had asked a fellow colleague to enter the new device into our ACS deployment to allow authentication and command authorization. The long …

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Permanent link to this article: http://www.packetpilot.com/srt-offline-type-7-decrypt/

Automated IP Communicator Launch against Multiple Clusters

If you manage multiple CUCM clusters you are likely to have Cisco’s IP Communicator installed on your computer. Cisco IP Communicator is a software based phone installed on your computer that connects up to CUCM and lets you utilize your PC as if it’s a Cisco desk phone. This is a pivotal tool to quickly …

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Permanent link to this article: http://www.packetpilot.com/automated-ip-communicator-launch-against-multiple-clusters/

Cisco OSPF MD5 Authentication

Continuing with our OSPF and interior gateway protocols we will not look at an MD5 implementation utilizing OSPF on a Cisco router. We will again continue with our 3 router topology as used in both the EIGRP MD5 example and the OSPF plain text example. There are very few changes that will need to be …

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Permanent link to this article: http://www.packetpilot.com/cisco-ospf-md5-authentication/

Cisco OSPF Plain Text Authentication

Continuing with our interior routing protocol discussion on authentication we are going to look at Cisco OSPF implementation of plain text authentication. While this isn’t the most widely used model for authentation with OSPF it is a viable option. The topology we are going to use is the same topology from the EIGRP authentication example. …

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Permanent link to this article: http://www.packetpilot.com/cisco-ospf-plain-text-authentication/

Overlapped IP Range in a Merger

The Scenario is this…Company A has purchased Company B. One is an enterprise of thousands of users, the other a mid size company in the multiple hundres. However, as would happen to be the case, both companies utilize an overlapping subnet. To further complicate the issue it has been decided that both companies need to …

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Cisco DHCP Configuration

Cisco routers are capable of doing many more things than simply routing packets. In fact, it can operate as a small DHCP server when needed. By no means is it a replacement for your enterprise, centrally managed DHCP server but it does have its applicable scenarios. Lets say you have a branch office that has …

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Permanent link to this article: http://www.packetpilot.com/cisco-dhcp-configuration/

Static Routing with Cisco

Routing is at the core of the network infrastructure. Routing is what ultimately lets you get from point A to point B not only in your own network, but also across the entirety of the world wide web. Routing in its simplest form tells your network devices the path to get to another network device …

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