Charles Galler
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Charles Galler
Planning a Project Before Your Execution
This year I have worked on a number of projects and most of them had no planning while others had very little. The planning phase of a project is the most critical part of a project. Planning can not only make or break a project, but your reputation as well. If a project doesn’t go […]
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The post Planning a Project Before Your Execution appeared first on Packet Pushers Podcast and was written by Charles Galler.
Cisco Internal VLAN Usage
About a month ago I worked on an old CatOS switch. Working on this switch reminded me about some of the differences between CatOS and IOS. One of the big differences is how a Layer 3 routed interface is configured between the two OS versions. On a Catalyst running IOS, it is almost identical as […]
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The post Cisco Internal VLAN Usage appeared first on Packet Pushers Podcast and was written by Charles Galler.
Out with the old, in with the new
A few weeks ago I was asked to help a client turn up and move everything over to a new network. I have done this many times and this is not an uncommon type of project. In doing network assessments for clients I have found some old equipment still in service, still part of the […]
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The post Out with the old, in with the new appeared first on Packet Pushers Podcast and was written by Charles Galler.
Securing a DMVPN spoke – Part 2
In Part 1 we went through protecting the spoke from the outside world on the Internet and using the stateful inspection firewall CBAC, Content-Based Access Control, to dynamically allow returning traffic back in. CBAC works great for a single inside zone and a single outside zone. What if your business requirements have more than two […]
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The post Securing a DMVPN spoke – Part 2 appeared first on Packet Pushers Podcast and was written by Charles Galler.
Securing a DMVPN spoke – Part 1
For organizations that have many remote offices a DMVPN solution is a great option. You can purchase a cheap DSL or cable modem based solution then establish a dynamically built encrypted tunnel back to the corporate office or Data Center(s). The hubs should be located in a DMZ behind a firewall at the Data Center […]
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The post Securing a DMVPN spoke – Part 1 appeared first on Packet Pushers Podcast and was written by Charles Galler.
Teamwork in a Disconnected Environment
As an introvert, I don’t like ice breakers or team building exercises at team meetings. Building the team camaraderie is done slowly over time with peers you work with. Daily interactions during work help build that as engineers learn to trust each other. What about for a team that does not interact with each other […]
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The post Teamwork in a Disconnected Environment appeared first on Packet Pushers Podcast and was written by Charles Galler.
Using IP SLA Delay Feature to Safely Monitor Lossy Links
IP SLA is a great feature if you want to add some automation and intelligence into the network. SLA is no SDN/OpenFlow, but it can be very useful. It can also take down a network. Let’s say you are using DMVPN for a number of spoke locations in your network. You have a primary Internet […]
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The post Using IP SLA Delay Feature to Safely Monitor Lossy Links appeared first on Packet Pushers Podcast and was written by Charles Galler.