<html><head></head><body bgcolor="#FFFFFF"><div><br><br>Sent from my iPad</div><div><br>On Jun 29, 2012, at 2:54 PM, Andrew Alston <<a href="mailto:alston.networks@gmail.com">alston.networks@gmail.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="#FFFFFF"><div><div class="h5"><br></div></div><div>Really? How is it that you prevent students from adding their own linksys or nether NAT routers to connect a number of devices to that one port the university provides in each dorm?</div>
<div><br></div><div>If you're actually providing whatever number of ports the students require in each room, I'm impressed and surprised. If not, then you're an LIR whether you realize it or not. </div><span class="HOEnZb"><font color="#888888"><div>
<br></div><div>Owen</div><div><br></div></font></span></div></blockquote><div>Very simple, mac limitations per port. Limit the number of MAC addresses per port, they plug in more than one device, the port shuts for a period of time. That feature is supported on most decent access layer devices these days and is enabled in many places.</div>
<div><br></div></div></div></blockquote>BZZT!!! But thank you for playing. A linksys NAT router presents only one Mac address to your equipment. Behind that router, you can have up to (IIRC) 1024 devices, each of which could be another NAT router if you are desperate.<div><br><blockquote type="cite"><div><div class="gmail_quote"><div>Besides which, I don't believe you can be an "unintentional" LIR, an LIR means *registry*, you can't unintentionally register things</div></div></div></blockquote><div><br></div>If you are providing network access to people not on your payroll, you are an intentional (albeit possibly unaware) LIR. I did not say unintentional, I said possibly unaware.</div><div><br></div><div>Owen</div><div><br></div></body></html>