{"id":1739,"date":"2020-11-30T13:45:41","date_gmt":"2020-11-30T12:45:41","guid":{"rendered":"http:\/\/blogperso.union31.fr\/?p=1739"},"modified":"2020-11-30T15:56:20","modified_gmt":"2020-11-30T14:56:20","slug":"gns3-routeur-et-cloud-et-nat","status":"publish","type":"post","link":"https:\/\/blogperso.union31.fr\/?p=1739","title":{"rendered":"GNS3 : Routeur et cloud (et NAT)"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Sommaire<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#I_Introduction\" >I Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#II_Configuration_initiale\" >II Configuration initiale<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#II1_Configuration_de_linterface_connectee_au_cloud\" >II.1 Configuration de l&rsquo;interface  connect\u00e9e au cloud<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#II2_Configuration_du_VLAN_20\" >II.2 Configuration du VLAN 20<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#II3_Configuration_des_autres_interfaces\" >II.3 Configuration des autres interfaces :<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#II4_Verification\" >II.4 V\u00e9rification<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#III_Configuration_finale\" >III Configuration finale<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#III1_Introduction\" >III.1 Introduction<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#III2_Route_par_defaut\" >III.2 Route par d\u00e9faut<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/blogperso.union31.fr\/?p=1739\/#III3_Mise_en_oeuvre_du_Nat\" >III.3 Mise en \u0153uvre du Nat<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"I_Introduction\"><\/span>I Introduction<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>L&rsquo;objectif est de pouvoir utiliser l&rsquo;objet CLOUD de GNS3. Ce qui va impliquer l&rsquo;impl\u00e9mentation du NAT sur un des routeurs.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/blogperso.union31.fr\/wp-content\/uploads\/2020\/11\/GNS3_cloud_archi-1024x576.png\" alt=\"\" class=\"wp-image-1742\" width=\"811\" height=\"456\" srcset=\"https:\/\/blogperso.union31.fr\/wp-content\/uploads\/2020\/11\/GNS3_cloud_archi-1024x576.png 1024w, https:\/\/blogperso.union31.fr\/wp-content\/uploads\/2020\/11\/GNS3_cloud_archi-300x169.png 300w, https:\/\/blogperso.union31.fr\/wp-content\/uploads\/2020\/11\/GNS3_cloud_archi-768x432.png 768w, https:\/\/blogperso.union31.fr\/wp-content\/uploads\/2020\/11\/GNS3_cloud_archi.png 1027w\" sizes=\"auto, (max-width: 811px) 100vw, 811px\" \/><\/figure>\n\n\n\n<p>Les PC virtuels seront configur\u00e9s manuellement. Ils seront dans le VLAN 20 du routeur.<\/p>\n\n\n\n<p>Un des PC Virtuels est une VM VirtualBox qui supporte une image de Windows 10.<\/p>\n\n\n\n<p>Le cloud est connect\u00e9 par liaison filaire. On le consid\u00e8re comme le WAN. Ce WAN d\u00e9livre des adresses IP en DHCP avec comme passerelle 192.168.2.1<\/p>\n\n\n\n<p>Remarque : sous ubuntu pour voir le nom des interfaces r\u00e9seaux et si connect\u00e9 :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>util@PC-UBU:~$ nmcli device status\nDEVICE          TYPE      STATE         CONNECTION \nwlp2s0          wifi      connect\u00e9      xavchrys2  \nvirbr0          bridge    connect\u00e9      virbr0     \np2p-dev-wlp2s0  wifi-p2p  d\u00e9connect\u00e9    --         \neno1            ethernet  indisponible  --         \nlo              loopback  non-g\u00e9r\u00e9      --         \nvirbr0-nic      tun       non-g\u00e9r\u00e9      --         <\/code><\/pre>\n\n\n\n<p>Et pour visualiser le d\u00e9tail :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>util@PC-UBU:~$ ip address\n1: lo: &lt;LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000\n    link\/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00\n    inet 127.0.0.1\/8 scope host lo\n       valid_lft forever preferred_lft forever\n    inet6 ::1\/128 scope host \n       valid_lft forever preferred_lft forever\n2: eno1: &lt;NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc fq_codel state DOWN group default qlen 1000\n    link\/ether 34:e6:d7:18:c6:21 brd ff:ff:ff:ff:ff:ff\n3: wlp2s0: &lt;BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000\n    link\/ether 48:51:b7:5b:bb:c0 brd ff:ff:ff:ff:ff:ff\n    inet 192.168.2.135\/24 brd 192.168.2.255 scope global dynamic noprefixroute wlp2s0\n       valid_lft 4320sec preferred_lft 4320sec\n    inet6 fe80::4e2b:a094:a63f:348b\/64 scope link noprefixroute \n       valid_lft forever preferred_lft forever\n4: virbr0: &lt;NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000\n    link\/ether 52:54:00:f5:40:8f brd ff:ff:ff:ff:ff:ff\n    inet 192.168.122.1\/24 brd 192.168.122.255 scope global virbr0\n       valid_lft forever preferred_lft forever\n5: virbr0-nic: &lt;BROADCAST,MULTICAST> mtu 1500 qdisc fq_codel master virbr0 state DOWN group default qlen 1000\n    link\/ether 52:54:00:f5:40:8f brd ff:ff:ff:ff:ff:ff\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"II_Configuration_initiale\"><\/span>II Configuration initiale<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"II1_Configuration_de_linterface_connectee_au_cloud\"><\/span>II.1 Configuration de l&rsquo;interface  connect\u00e9e au cloud <span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Extrait running-config :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>interface FastEthernet1\/0\n no switchport\n no ip address<\/code><\/pre>\n\n\n\n<p><em><strong>rem perso : Bizarre &#8230; Adresse IP en mode DHCP manque &#8230;<\/strong><\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"II2_Configuration_du_VLAN_20\"><\/span>II.2 Configuration du VLAN 20<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Extrait running-config :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>interface Vlan20\n ip address 192.168.20.254 255.255.255.0\n <\/code><\/pre>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"II3_Configuration_des_autres_interfaces\"><\/span>II.3 Configuration des autres interfaces :<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Extrait du running-config :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>interface FastEthernet1\/1\n switchport access vlan 20\n!\ninterface FastEthernet1\/2\n switchport access vlan 20\n!\ninterface FastEthernet1\/3\n switchport access vlan 20\n!\ninterface FastEthernet1\/4\n switchport access vlan 20\n!\ninterface FastEthernet1\/5\n switchport access vlan 20\n!\ninterface FastEthernet1\/6\n switchport access vlan 20\n!\ninterface FastEthernet1\/7\n switchport access vlan 20\n!\ninterface FastEthernet1\/8\n switchport access vlan 20\n!\ninterface FastEthernet1\/9\n switchport access vlan 20\n!\ninterface FastEthernet1\/10\n switchport access vlan 20\n!         \ninterface FastEthernet1\/11\n switchport access vlan 20\n!\ninterface FastEthernet1\/12\n switchport access vlan 20\n!\ninterface FastEthernet1\/13\n switchport access vlan 20\n!\ninterface FastEthernet1\/14\n switchport access vlan 20\n!\ninterface FastEthernet1\/15\n switchport access vlan 20<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"II4_Verification\"><\/span>II.4 V\u00e9rification<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A ce stade :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>les PC virtuels se pinguent<\/li><li>le routeur ping la passerelle internet (WAN)<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"III_Configuration_finale\"><\/span>III Configuration finale<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"III1_Introduction\"><\/span>III.1 Introduction<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Il va falloir introduire introduire : <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>une route par defaut ;<\/li><li>la notion de NAT pour que les PC, en classe priv\u00e9e, puissent \u00eatre rout\u00e9s vers le Cloud. <\/li><\/ul>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"III2_Route_par_defaut\"><\/span>III.2 Route par d\u00e9faut<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code>R1#conf t\nEnter configuration commands, one per line.  End with CNTL\/Z.\nR1(config)#ip route 0.0.0.0 0.0.0.0 192.168.0.1\nR1(config)#exit<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"III3_Mise_en_oeuvre_du_Nat\"><\/span>III.3 Mise en \u0153uvre du Nat<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Cette mise en \u0153uvre va se faire en 2 grandes \u00e9tapes :<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>d\u00e9claration du NAT sur les interfaces :<ul><li>en entr\u00e9e (inside) sur l&rsquo;interface VLAN,<\/li><li>en sortie (outside) sur l&rsquo;interface connect\u00e9e au WAN (cloud).<\/li><\/ul><\/li><li>R\u00e8gle des plages IP \u00e0 prendre en compte<\/li><\/ul>\n\n\n\n<p>d\u00e9claration du nat en sortie :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>R1#conf t\nR1(config)#interface fastEthernet 1\/0\nR1(config-if)#ip nat outside\nR1(config-if)#exit\n<\/code><\/pre>\n\n\n\n<p>d\u00e9claration du NAT en entr\u00e9e :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>R1#conf t\nR1(config)# interface vlan 20\nR1(config-if)#ip nat inside \nR1(config-if)#exit\n<\/code><\/pre>\n\n\n\n<p>Maintenant il faut sp\u00e9cifier l&rsquo;adresse IP ou la plage d&rsquo;adresse IP sur lesquelles le NAT s&rsquo;effectuera.<\/p>\n\n\n\n<p>Comme le Wan d\u00e9livre une adresse IP en DHCP sur l&rsquo;interface FastEthernet 1\/0, l&rsquo;adresse IP peut \u00eatre comprise entre 192.168.2.2 et 192.168.2.253.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>ip nat pool plagenat 192.168.2.2 192.168.2.253 netmask 255.255.255.0<\/code><\/pre>\n\n\n\n<p>Ensuite il faut d\u00e9clarer les plage d&rsquo;adresses IP du VLAN 20 \u00e0 natter. Pour cela il faut commencer \u00e0 sp\u00e9cifier une access-list sp\u00e9cifique (num\u00e9ro 1 ici).<\/p>\n\n\n\n<pre id=\"block-9397d6a0-68a7-4876-b108-507a1f667950\" class=\"wp-block-code\"><code>ip nat inside source list 1 pool plagenat<\/code><\/pre>\n\n\n\n<p>Ensuite cr\u00e9er cette acces list (num\u00e9ro 1).  Elle comprendra la classe r\u00e9seau du VLAN 20 et qui sera la suivante :<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>access-list 1 permit 192.168.20.0 0.0.0.255<\/code><\/pre>\n\n\n\n<p>A ce stade la configuration du NAT est termin\u00e9e.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I Introduction L&rsquo;objectif est de pouvoir utiliser l&rsquo;objet CLOUD de GNS3. Ce qui va impliquer l&rsquo;impl\u00e9mentation du NAT sur un des routeurs. Les PC virtuels seront configur\u00e9s manuellement. Ils seront dans le VLAN 20 du routeur. Un des PC Virtuels<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-1739","post","type-post","status-publish","format-standard","hentry","category-_systeme"],"_links":{"self":[{"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/posts\/1739","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1739"}],"version-history":[{"count":16,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/posts\/1739\/revisions"}],"predecessor-version":[{"id":1761,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=\/wp\/v2\/posts\/1739\/revisions\/1761"}],"wp:attachment":[{"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1739"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1739"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogperso.union31.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1739"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}