About Andrew Lutz

Andrew Lutz · 03-01-2016

Good Evening, I'm trying to decipher the usefulness of the additional validation options with dynamic ARP inspection. Below is what is quoted in Cisco articles, as well as books I have read: The additional validations do the following: •dst-mac—Che...

Andrew Lutz · 01-31-2015

Good Evening, I'm having trouble understanding how a PPP loop forms. I've read the RFC 1661, and I understand the purpose of the magic number and that it being unique would mean no loop and if not unique, it would potentially mean a loop. My questi...

Andrew Lutz · 01-28-2015

Good Day, I'm going through the Cisco Networking Academy book on Connecting Networks, and it discusses Private vs Public Infrastructure WAN technologies. It notes the types such as private being leased lines, circuit switches links such as PSTN and ...

Andrew Lutz · 06-30-2011

Good Morning,A quick question regarding intervlan routing on a Cisco Catalyst 6509. We have 2 WS-SUP32-GE-3B supervisor modules. Multiple VLANs are created on this switch, and there there are a couple of 3500 switches trunked to it which are vtp cl...

Andrew Lutz · 10-22-2010

Hello All, running into some problems trying to load an IOS on our 3640 router. From Rommon I have tried to load the IOS using XMODEM, but receive this message:Smart Init is enabledsmart init is sizing iomem ID MEMORY_REQ ...

Andrew Lutz · 03-02-2016

I understand what you mean, but I'm looking for specific examples of how changing the destination MAC or IP in the ARP body makes this happen.

Andrew Lutz · 01-29-2015

Thank you, Joseph. The ISP is essentially taking on the responsibility to isolate the traffic in private, and in public they don't. Good analogy by the way, thanks.

Andrew Lutz · 07-05-2011

Thanks for your time.

Andrew Lutz · 06-30-2011

Should have posted the IOS is Version 12.2(33)SXH8, RELEASE SOFTWARE (fc1)Version 12.2(33)SXH8, RELEASE SOFTWARE (fc1)

Andrew Lutz · 10-22-2010

Thanks again, you have been a great help. It appears I don't have the access required to download the images. I got the other image from someone else at another one of our campuses who has a 3640, and he is the one that told me it was unavailable to...

Member Since	‎07-28-2010 05:01 PM
Date Last Visited	‎08-18-2017 03:55 AM
Posts	28

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Dynamic ARP Inspection

How does a PPP Loop form?

Private Infrastructure vs Public Infrastructure

Inter VLAN routing on Cisco 6509

Trouble loading IOS for Cisco 3640 Router

I understand what you mean,

Thank you, Joseph. The ISP

Inter VLAN routing on Cisco 6509

Inter VLAN routing on Cisco 6509

Re: Trouble loading IOS for Cisco 3640 Router