\nThere are not so many tools out there to draw layer 2 network maps.<\/p>\n
Most of them are either linked to a specific hardware vendor (3com, cisco, etc) or expansive.<\/p>\n
Idea here is to propose a freeware to draw a layer 2 topology network map using informations found in switches.<\/p>\n
Prerequisites :<\/strong> 3 main steps :<\/strong> -Tab 2 : Collect datas from the snmp devices.<\/p>\n -Tab 3 : Build network topology using Spanning Tree Protocol (STP<\/a>) or Cisco Device Protocol (CDP<\/a>), and Forwarding Tables (bridges) using the direct connection theorem, and output a network map using graphviz<\/a>.<\/p>\n After step 3, you can add devices in step 1 (dont forget to save then) and re start from step 3 or from step 2.<\/p>\n Download & Contact<\/strong> Contact the author<\/a><\/p>\n This software is for personal use only and cannot be distributed for business purposes.<\/p>\n If you find this program useful please consider to make a donation to my PayPal account using the link in the upper screen. The money I receive this way goes towards my ongoing web hosting fees and other costs that I incur by making the programs on this site available to you free of charge.<\/p>\n Screenshots<\/strong> 3 Steps : Prepare\u00a0Devices, Collect Datas, Build Network\u00a0Topology (and make a visual graph \/ network map)<\/p>\n Step 1<\/strong><\/p>\n Step 2<\/strong><\/p>\n <\/p>\n <\/p>\n <\/p>\n Step 3<\/strong><\/p>\n See below for a gallery of maps generated by NetDiscovery (same network, different layout).<\/p>\n Purpose Prerequisites Steps Download \/ Contact Notes Screenshots Purpose : There are not so many tools out there to draw layer 2 network maps. Most of them are either linked to a specific hardware vendor (3com, cisco, etc) or expansive. Idea here is to propose a freeware to draw a layer 2 topology network map […]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-31","page","type-page","status-publish","hentry","post-seq-1","post-parity-odd","meta-position-corners","fix"],"_links":{"self":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/pages\/31","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=31"}],"version-history":[{"count":19,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/pages\/31\/revisions"}],"predecessor-version":[{"id":1635,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=\/wp\/v2\/pages\/31\/revisions\/1635"}],"wp:attachment":[{"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=31"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=31"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/labalec.fr\/erwan\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=31"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nYou LAN switches must be :
\n-managed & layer 2
\n-snmp enabled with a known read-only snmp community<\/p>\n
\n-Tab 1 : Prepare list of snmp devices : scan network or manually edit it.<\/p>\n
\nDownload Beta<\/a><\/p>\n
\nHere below some screenshots of the tool.<\/p>\n![\"netdisco1\"](\"https:\/\/labalec.fr\/erwan\/wp-content\/uploads\/2011\/12\/netdisco1-300x195.png\")
<\/a><\/p>\n![\"netdisco2\"](\"https:\/\/labalec.fr\/erwan\/wp-content\/uploads\/2011\/12\/netdisco2-300x195.png\")
<\/a><\/p>\n![\"netdisco3\"](\"https:\/\/labalec.fr\/erwan\/wp-content\/uploads\/2011\/12\/netdisco3-300x195.png\")
<\/a><\/p>\n![](\"http:\/\/i.imgur.com\/WJfiZLd.png?1\" "\\"source:")
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