{"id":203,"date":"2005-12-22T15:12:00","date_gmt":"2005-12-22T15:12:00","guid":{"rendered":"http:\/\/markwilson.me.uk\/blog\/2005\/12\/securing-my-wireless-network.htm"},"modified":"2007-05-28T15:21:14","modified_gmt":"2007-05-28T14:21:14","slug":"securing-my-wireless-network","status":"publish","type":"post","link":"https:\/\/www.markwilson.co.uk\/blog\/2005\/12\/securing-my-wireless-network.htm","title":{"rendered":"Securing my wireless network"},"content":{"rendered":"<p><!--113526919097281689-->Last week I wrote about <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2005\/12\/upgrading-my-wireless-network.htm\">upgrading my wireless network<\/a>.  It&#8217;s been running well since then, so this afternoon I decided to go ahead with stage 3 &#8211; configuring wifi protected access (WPA).  As I haven&#8217;t set up a RADIUS server here, and to be honest, it would be overkill for a small network like mine, I decided to implement WPA-PSK (pre-shared key), as detailed in  <a href=\"http:\/\/blogs.technet.com\/steve_lamb\/archive\/2005\/12\/02\/415426.aspx\">Steve Lamb&#8217;s post (and blogcast) on the subject<\/a>.<\/p>\n<p>Initially, it all went well, simply setting the access point to use WPA-PSK and defining a passphrase.  Within a few minutes, I had entered the passphrase on two of my notebook PCs and all was working well (one using a Compaq WLAN MultiPort W200 and one using an Intel PRO\/Wireless 2200BG network connection) but then I hit some real problems.  My wife&#8217;s PC (the whole reason for us having a wireless network) and my server were refusing to play with the access point displaying the following message when I selected the wireless network and entered the network key:<\/p>\n<p><em>Wireless configuration<\/em><\/p>\n<p><em>The network password needs to be 40 bits or 104 bits depending on your network configuration.<\/em><\/p>\n<p><em>This can be entered as 5 or 13 ASCII characters or 10 or 26 hexadecimal characters.<\/em><\/p>\n<p>This seemed strange to me &#8211; there was no mention of any no such restrictions when I set up the WPA-PSK passphrase (the network key).  With one machine running Windows XP SP2 and the other running Windows Server 2003 SP1, WPA support shouldn&#8217;t have been a problem (I double-checked the server with the D-Link AirPlus DWL-520+ wireless PCI adapter and once I&#8217;d manually switched the properties to WPA-PSK using TKIP, I was able to enter the network key and connect as normal).<\/p>\n<p>It seems that for some reason, the D-Link card had defaulted to using WEP, and sure enough, once I set it to use WPA-PSK, the network description changed from security-enabled wireless network to security-enabled wireless network (WPA).<\/p>\n<p>So, three machines working, one to go.<\/p>\n<p>I read in <a href=\"http:\/\/www.microsoft.com\/technet\/technetmag\/issues\/2005\/11\/securitywatch\">Kathryn Tewson and Steve Riley&#8217;s security watch: a guide to wireless security<\/a> article that WPA is &#8220;both more secure and easier to configure than WEP, but most network cards made before mid-2003 won\u00e2\u20ac\u2122t support it unless the manufacturer has produced a firmware update&#8221;.  The problem machine was using a Compaq WL110 Wireless PC Card, which I was given around 2002\/3 (when we first put in the 802.11b network) so it sounded plausible that I might need a firmware update.  A little more googling turned up the <a href=\"http:\/\/forums1.itrc.hp.com\/service\/forums\/questionanswer.do?threadId=964670\">does\/can the WL110 support WPA? thread on the HP IT Resource Center<\/a> which gave me the answer.  No, there is no firmware upgrade (card support was dropped before the WPA specification was finalised), but if you <a href=\"http:\/\/www.agere.com\/mobility\/docs\/windows_drivers_sr02-2.3.zip\">download the Agere version of the drivers<\/a>, and tell Windows XP that the WL110 is a 2Wire Wireless PC Card, WPA is available and it works (even inside the WL210 PCI adapter)!<\/p>\n<p>So, that&#8217;s all done &#8211; a working, (hopefully) secure, wireless network, all for the price of a new access point.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Last week I wrote about upgrading my wireless network. It&#8217;s been running well since then, so this afternoon I decided to go ahead with stage 3 &#8211; configuring wifi protected access (WPA). As I haven&#8217;t set up a RADIUS server here, and to be honest, it would be overkill for a small network like mine, &hellip; <a href=\"https:\/\/www.markwilson.co.uk\/blog\/2005\/12\/securing-my-wireless-network.htm\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Securing my wireless network<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[],"tags":[43,23],"class_list":["post-203","post","type-post","status-publish","format-standard","hentry","tag-security","tag-wireless"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Securing my wireless network - markwilson.it<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.markwilson.co.uk\/blog\/2005\/12\/securing-my-wireless-network.htm\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Securing my wireless network - markwilson.it\" \/>\n<meta property=\"og:description\" content=\"Last week I wrote about upgrading my wireless network. 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My 802.11b access point didn't support WiFi protected access (WPA), so I turned off all the security (except MAC address filtering), thinking that there's nothing here worth stealing\u2026","rel":"","context":"In \"Wi-Fi\"","block_context":{"text":"Wi-Fi","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/wireless"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":199,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/12\/wireless-security-and-secure-remote.htm","url_meta":{"origin":203,"position":1},"title":"Wireless security and secure remote access","author":"Mark Wilson","date":"Friday 9 December 2005","format":false,"excerpt":"Last night, I attended Steve Lamb's Microsoft TechNet UK briefing on wireless security and secure remote access. I won't repeat the entire content here, because Steve has an article in the November\/December issue of Microsoft TechNet magazine, entitled improve your web security with encryption and firewall technologies, which, when combined\u2026","rel":"","context":"In \"Microsoft ISA Server\"","block_context":{"text":"Microsoft ISA Server","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/isa"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":556,"url":"https:\/\/www.markwilson.co.uk\/blog\/2006\/03\/configuring-wireless-ethernet-with.htm","url_meta":{"origin":203,"position":2},"title":"Configuring wireless Ethernet with SuSE Linux 10.0","author":"Mark Wilson","date":"Tuesday 14 March 2006","format":false,"excerpt":"Alex and I were debating the pros and cons of various operating systems during our geekfest (working on my latest website project, in the pub) last weekend - he's just bought a new Mac (and works with them all day), so, like most Mac users I know, he can't see\u2026","rel":"","context":"In \"Linux\"","block_context":{"text":"Linux","link":"https:\/\/www.markwilson.co.uk\/blog\/tag\/linux"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":228,"url":"https:\/\/www.markwilson.co.uk\/blog\/2005\/11\/trying-to-resolve-wireless-lan.htm","url_meta":{"origin":203,"position":3},"title":"Trying to resolve wireless LAN connectivity issues","author":"Mark Wilson","date":"Monday 14 November 2005","format":false,"excerpt":"Somewhat ironically, as I scraped the ice off my car window early this morning, I was prompted to blog about the issues which the summer heat had caused on my wireless (802.11b) network earlier this year. 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