{"id":27498,"date":"2017-04-09T13:23:41","date_gmt":"2017-04-09T11:23:41","guid":{"rendered":"https:\/\/mamchenkov.net\/wordpress\/?p=27498"},"modified":"2017-04-10T08:54:33","modified_gmt":"2017-04-10T06:54:33","slug":"wireshark-layer-2-3-pcap-analysis-w-challenges-ccnp-switch","status":"publish","type":"post","link":"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/wireshark-layer-2-3-pcap-analysis-w-challenges-ccnp-switch\/","title":{"rendered":"Wireshark Layer 2-3 pcap Analysis w\/ Challenges (CCNP SWITCH)"},"content":{"rendered":"<!-- google_ad_section_start -->\n<p><a href=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/CCNP-SWITCH-Lab-Sketch-Johannes-Weber-722x1024.jpg?ssl=1\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"27499\" data-permalink=\"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/wireshark-layer-2-3-pcap-analysis-w-challenges-ccnp-switch\/ccnp-switch-lab-sketch-johannes-weber-722x1024\/\" data-orig-file=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/CCNP-SWITCH-Lab-Sketch-Johannes-Weber-722x1024.jpg?fit=722%2C1024&amp;ssl=1\" data-orig-size=\"722,1024\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"CCNP-SWITCH-Lab-Sketch-Johannes-Weber-722&amp;#215;1024\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/CCNP-SWITCH-Lab-Sketch-Johannes-Weber-722x1024.jpg?fit=660%2C936&amp;ssl=1\" class=\"aligncenter size-medium wp-image-27499\" src=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/CCNP-SWITCH-Lab-Sketch-Johannes-Weber-722x1024-353x500.jpg?resize=353%2C500&#038;ssl=1\" alt=\"\" width=\"353\" height=\"500\" srcset=\"https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/CCNP-SWITCH-Lab-Sketch-Johannes-Weber-722x1024.jpg?resize=353%2C500&amp;ssl=1 353w, https:\/\/i0.wp.com\/mamchenkov.net\/wordpress\/wp-content\/uploads\/2017\/04\/CCNP-SWITCH-Lab-Sketch-Johannes-Weber-722x1024.jpg?resize=722%2C1024&amp;ssl=1 722w\" sizes=\"auto, (max-width: 353px) 100vw, 353px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/blog.webernetz.net\/\">Johannes Weber<\/a>, a networking and security professional, has done <a href=\"https:\/\/blog.webernetz.net\/2017\/03\/29\/wireshark-layer-2-3-pcap-analysis-w-challenges-ccnp-switch\/\">something really cool<\/a> while preparing for his CCNP SWITCH exam. \u00a0He has built a lab with some networking equipment, configured it all, and captured network traffic, featuring a variety of level 2 and 3 protocols. \u00a0He has published his setup, the captured traffic, and a variety of challenges, that helped him to prepare, and which can help others.<\/p>\n<blockquote><p>While preparing for my CCNP SWITCH exam I built a laboratory with 4 switches, 3 routers and 2 workstations in order to test almost all layer 2\/3 protocols that are related to <strong>network management traffic<\/strong>. And because \u201c<a href=\"https:\/\/www.netresec.com\/?page=Blog&amp;month=2014-05&amp;post=PCAP-or-it-didn%27t-happen\" target=\"_blank\">PCAP or it didn\u2019t happen<\/a>\u201d I captured 22 of these protocols to further investigate them with Wireshark. Oh oh, I remember the good old times where I merely used unmanaged layer 2 switches. &#x1f609;<\/p>\n<p>In this blogpost <strong>I am publishing the captured pcap file<\/strong> with all of these 22 protocols. I am further listing <strong>45 CHALLENGES as an exercise for the reader<\/strong>. Feel free to download the pcap and to test your protocol skills with Wireshark! Use the comment section below for posting your answers.<\/p>\n<p>Of course I am running my lab <strong>fully dual-stacked, i.e., with IPv6 and legacy IP<\/strong>.<\/p><\/blockquote>\n<p>I think these are great for several reasons:<\/p>\n<ul>\n<li>A feature-rich and complete networking setup, which is not easily available to everyone.<\/li>\n<li>A fixed set of data (captured network traffic).<\/li>\n<li>Plenty of very specific, testable, and verifiable questions.<\/li>\n<li>Overall, very helpful resource from an experience professional, for anybody who wants to know about networks.<\/li>\n<li>Overall, a great set of questions and challenges for those interviewing networking candidates.<\/li>\n<\/ul>\n<p>The lab setup includes the following:<\/p>\n<blockquote>\n<ul>\n<li>1x Cisco Catalyst <strong>2960<\/strong>, (C2960-LANBASEK9-M), Version 15.0(2)SE9<\/li>\n<li>2x Cisco Catalyst <strong>2950<\/strong>, (C2950-I6K2L2Q4-M), Version 12.1(22)EA14<\/li>\n<li>1x Cisco Catalast <strong>3560<\/strong>, (C3560-IPSERVICESK9-M), Version 12.2(55)SE10<\/li>\n<li>3x Cisco <strong>Router 2811<\/strong>, (C2800NM-ADVENTERPRISEK9-M), Version 15.1(4)M9<\/li>\n<li>2x old <strong>Notebooks<\/strong>, Dell or somewhat, running either Ubuntu or Knoppix Linux<\/li>\n<\/ul>\n<\/blockquote>\n<p>Personally, I am not very involved with networks these days. \u00a0But even for more me the above setup serves as a reminder of how complex underlying technology infrastructure has got in recent years &#8211; hardware, software, protocols, and all.<\/p>\n<!-- google_ad_section_end -->\n","protected":false},"excerpt":{"rendered":"<!-- google_ad_section_start -->\n<p>Johannes Weber, a networking and security professional, has done something really cool while preparing for his CCNP SWITCH exam. \u00a0He has built a lab with some networking equipment, configured it all, and captured network traffic, featuring a variety of level 2 and 3 protocols. \u00a0He has published his setup, the captured traffic, and a variety &hellip; <a href=\"https:\/\/mamchenkov.net\/wordpress\/2017\/04\/09\/wireshark-layer-2-3-pcap-analysis-w-challenges-ccnp-switch\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Wireshark Layer 2-3 pcap Analysis w\/ Challenges (CCNP SWITCH)<\/span><\/a><\/p>\n<!-- google_ad_section_end -->\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"Wireshark Layer 2-3 pcap Analysis w\/ Challenges (CCNP SWITCH) #networks #Cisco #SysAdmin #protocols #TCPIP","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false,"_links_to":"","_links_to_target":""},"categories":[1,133,62],"tags":[2412,281,3296,1108],"keyring_services":[],"class_list":["post-27498","post","type-post","status-publish","format-standard","hentry","category-general","category-sysadmin","category-technology","tag-cisco","tag-networks","tag-protocols","tag-testing"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"Johannes Weber, a networking and security professional, has done something really cool while preparing for his CCNP SWITCH exam. 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