StaticNAT

Ok based on the title and the personal info I am about to divuldge I should be in bed right now. I tried that and I just cant go to slleep so I figured I would fuel the growing masses that are checking out Staticnat. As last week ended I knew things were going to be busy for the upcomming few weeks. What caught me by surprise was that by the end of today I had more than 120 hours or work scheduled by the end of the day today. Don’t get me wrong I have worked my share of 60, 70 and even 80 hour weeks, but when I hit those higher numbers I can usually slow down the following week. So just for the sake of posterity I’m goingto break down my next two weeks here along with a few thoughts about it.
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Well we have known about this for quite awhile. I have mentioned it to clients and my internal support folks at my company. But wouldn’t you know it we are a day past the new Daylight Savings Time implementation and I’m getting calls and frantic people running back to my desk wondering if the sky is falling. It is funny I have had my home network (Cisco 1760, Cisco 3640, 2 x Cisco Cat 3500XL, PIX 501, 2 x Ubuntu Server, 3x Win XP Workstations, Asterisk Box, and about 5 other little project boxes in various states of not working) up to date and ready for the change for more than an month. I should mention that I missed my VX6700 WM5 phone thanks to Verizon just notifying me on friday that there was a problem. But anyway I’m going to post the work around commands and the link to Cisco’s DLST site for my reference for what will probably be a 6 month battle to find all the devices at clients that do not conform. Maybe some of you will get some millage out of it also. Good luck and fight the good fight
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Spanning Tree Protocol or STP as we all get to know it quickly (Thanks CCNA) is one of the most used and more important protocols in networking, especially if your on a big flat switched network.  Anyway sometimes STP can be a bit tricky.  I just found this great flash demo of STP.  Its a quick and visual way to learn or remind yourself how STP works.  And if your like me the visual aspect of this really helps out!!  I do want to credit my source..again NetPro Forums and in this case this thread.

Yeah yeah…I know it took forever.  I am posting a bit more now on Cisco’s Netpro forums and I figured it was easiest to just post a config sample for the question that was asked.  So here it is.  It is a Catalyst 3550-48-EMI config that has been truncated.  It shows the basic config for a 3550/3560/3570/any Cisco L3 switch to route VLAN traffic.  Check it out!!

For good measure here is the link for the NetPro thread that this was posted for.

Thanks for all of you who have been checking out the site.  I see my numbers starting to move around which makes me think that at least a few people are getting something out of this.  I have lots more planned but it all takes time.  I would love to hear from any of you so feel free to drop me a line at joshobrien77+staticnat@gmail.com

All of us who work on routers and switches have had to do a show interface command.  Some of the information we gleam form that command is straight forward.  Other little tidbits aren’t quite so forthcoming with their purpose or meaning.  This is the case with teh reliability x/255 txload x/255 and rxload x/255.  If your like me you have learned over time the reliability of 255/255 is good and much of anything in txload and rxload is bad.  Well thanks to NetPro Forums and Cisco Docs here is the answer.  Enjoy.
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This is another one of those posts that is mainly for me but hopefully some of you might get some millage out of it also.

When using L3 Access Lists on Routers or L3 Switches to manage traffic this is the best way to look at things; View your Physical Interface or your VLAN Interface as its own little firewall (inside/outside). Do not however confuse the L3 access-lists at Stateful they are not! If you have both inbound and outbound ACL’s defined you will have to make changes to both sides to allow new traffic through!! Back to the INSIDE/OUTSIDE idea though.
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