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<?xml-stylesheet type="text/xsl" href="http://blogs.technet.com/utility/FeedStylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Rob Costello : Security</title><link>http://blogs.technet.com/robcost/archive/tags/Security/default.aspx</link><description>Tags: Security</description><dc:language>en-US</dc:language><generator>CommunityServer 2.1 SP1 (Build: 61025.2)</generator><item><title>Public IP Requirements for A/V Edge</title><link>http://blogs.technet.com/robcost/archive/2008/03/16/public-ip-requirements-for-a-v-edge.aspx</link><pubDate>Sun, 16 Mar 2008 11:56:00 GMT</pubDate><guid isPermaLink="false">d5e57398-b9ef-4490-9955-07cbb4e4a80d:3005215</guid><dc:creator>robcost</dc:creator><slash:comments>0</slash:comments><comments>http://blogs.technet.com/robcost/comments/3005215.aspx</comments><wfw:commentRss>http://blogs.technet.com/robcost/commentrss.aspx?PostID=3005215</wfw:commentRss><description>&lt;p&gt;So a few people get nervous when you tell them your going to need a publicly routable IP when implementing the OCS A/V Edge role for external A/V Conferencing.&amp;#160; Then you tell them they'll need to open up 10,000 high ports, and you can see the blood drain from their faces.&amp;#160; :)&lt;/p&gt;  &lt;p&gt;Well it's not all bad news.&amp;#160; If you understand how the protocols work the risk really isn't that high.&lt;/p&gt;  &lt;p&gt;&lt;a href="http://blogs.technet.com/chlacy/default.aspx" target="_blank"&gt;Chad Lacy&lt;/a&gt; has a great post discussing the security that is wrapped around the A/V Edge role, check them out here...&lt;/p&gt;  &lt;p&gt;&lt;a title="http://blogs.technet.com/chlacy/archive/2007/12/21/a-v-edge-server-load-balancer-still-need-public-ip-address.aspx" href="http://blogs.technet.com/chlacy/archive/2007/12/21/a-v-edge-server-load-balancer-still-need-public-ip-address.aspx"&gt;http://blogs.technet.com/chlacy/archive/2007/12/21/a-v-edge-server-load-balancer-still-need-public-ip-address.aspx&lt;/a&gt;&lt;/p&gt;  &lt;p&gt;&lt;a title="http://blogs.technet.com/chlacy/archive/2008/03/12/a-v-edge-and-publicly-routable-ip-addresses-part-ii.aspx" href="http://blogs.technet.com/chlacy/archive/2008/03/12/a-v-edge-and-publicly-routable-ip-addresses-part-ii.aspx"&gt;http://blogs.technet.com/chlacy/archive/2008/03/12/a-v-edge-and-publicly-routable-ip-addresses-part-ii.aspx&lt;/a&gt;&lt;/p&gt;  &lt;p&gt;   &lt;div class="wlWriterSmartContent" id="scid:0767317B-992E-4b12-91E0-4F059A8CECA8:75141587-0499-4991-8ede-41523590620c" style="padding-right: 0px; display: inline; padding-left: 0px; padding-bottom: 0px; margin: 0px; padding-top: 0px"&gt;Technorati Tags: &lt;a href="http://technorati.com/tags/OCS" rel="tag"&gt;OCS&lt;/a&gt;,&lt;a href="http://technorati.com/tags/A/V%20Edge%20Role" rel="tag"&gt;A/V Edge Role&lt;/a&gt;,&lt;a href="http://technorati.com/tags/A/V%20Conferencing" rel="tag"&gt;A/V Conferencing&lt;/a&gt;,&lt;a href="http://technorati.com/tags/Chad%20Lacy" rel="tag"&gt;Chad Lacy&lt;/a&gt;&lt;/div&gt; &lt;/p&gt; &lt;span class="sbmLink"&gt;   &lt;table cellspacing="1" cellpadding="1"&gt;&lt;tbody&gt;       &lt;tr&gt;         &lt;td class="sbmText"&gt;Share this post : &lt;/td&gt;          &lt;td class="sbmDim" onmouseover="mOvr(this)" onmouseout="mOut(this)"&gt;&lt;a class="sbmDim" onmouseover="mOvr(this)" title="Post it to backflip" onmouseout="mOut(this)" href="http://www.backflip.com/add_page_pop.ihtml?url=http://blogs.technet.com/robcost/archive/2008/03/16/public-ip-requirements-for-a-v-edge.aspx&amp;amp;title=Public IP Requirements for A/V Edge" target="_blank"&gt;&lt;img src="http://blogs.msdn.com/blogfiles/rahulso/WindowsLiveWriter/IconsfordifferentSocialBookmarkingSites_B387/backflip4.png" border="0" /&gt;&lt;/a&gt;&lt;/td&gt; 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