Tag Archives: Cisco

Network Toolkit – Enabling IPv6 on Cisco Catalyst 3750 Devices

As a part of my IPv6 series, I started with routers and then worked my way out from there. I was caught a little offguard when I tried to bring up my 3750 on IPv6 and didn’t find any of … Continue reading

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CCNP – Policy Based Routing

One of the areas I have encountered on the CCNP R/S studies is Policy Based Routing or PBR. This allows you to specify an alternate path for the traffic to use instead of the default path that the traffic is … Continue reading

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Network Toolkit – TCLSH – Documenting your router

Learning how to run a TCL script beyond my first posting was an interesting journey. Falling back to my iOS days, I tried finding some of the commands by using our old friend ? and wasn’t finding the commands. I … Continue reading

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Network Toolkit – Using tclsh for general ping testing

For a small bit of trivia, tclsh stands for Tool Command Language Shell. This has the potential of being a very versatile tool. This has been in IOS since the latest version of the 12.2S and 12.3T trains. I just … Continue reading

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CCNP – Using GNS3 for certification studies

For those that have been reading my posts for the past week, you have read that I am studying for my CCNP Route/Switch certification to renew my existing Cisco certifications. Although I have a rack of switches and a rack … Continue reading

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CCNP – Etherchannel trunk configuration

In my last post on Etherchannel, I reviewed how to setup an etherchannel for an access port configuration. When working with an inter-switch configuration or a virtual server configuration, you may occasionally need more than a 1 Gig connection when … Continue reading

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CCNP – GRE over IPSEC (Part 3)

Now that you have one remote site up and running, bring up a second site to see what is involved with that and see how the routing will work. ! Remote Router (R3) ! interface FastEthernet0/0 (connects to SW1 port … Continue reading

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CCNP – GRE over IPSEC (part 2)

In this installment of the GRE over IPSec series, we will put together the IPSec and Routing protocols portions of the config. Now we need to put the ACL’s in place for the “interesting” traffic to go over the IPSec … Continue reading

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CCNP – GRE over IPSEC (Part 1)

One of the concept’s I ran across on the CCNP Route exam was dealing with a GRE over an IPSEC Tunnel. I had dealt with both individually but not at the same time. Because of that I had no frame … Continue reading

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iPad for Engineers – Generating strong passwords

Creating passwords is not something that any of us really enjoys doing. To keep the wolfs at the door, we all need to do a better job with creating strong passwords. Sometimes you get into a rut and cant come … Continue reading

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