{"id":158,"date":"2022-11-16T09:57:25","date_gmt":"2022-11-16T08:57:25","guid":{"rendered":"https:\/\/it.billybaheux.fr\/?p=158"},"modified":"2022-11-16T10:02:02","modified_gmt":"2022-11-16T09:02:02","slug":"cisco-bloquer-a-chaque-redemarrage-sur-la-configuration-initial","status":"publish","type":"post","link":"https:\/\/it.billybaheux.fr\/index.php\/2022\/11\/16\/cisco-bloquer-a-chaque-redemarrage-sur-la-configuration-initial\/","title":{"rendered":"Routeur Cisco bloqu\u00e9 \u00e0 chaque red\u00e9marrage sur la configuration initiale"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

Ce sympt\u00f4me peut vouloir dire deux choses:
Le premier, le plus grave, probl\u00e8me de carte flash qui est en train de mourir
Le deuxi\u00e8me, vous d\u00e9marrez dans un syst\u00e8me Configuration Register pour bypasser certains param\u00e8tres<\/p>\n\n\n\n

Comment savoir si nous sommes dans le deuxi\u00e8me cas ?
C’est tr\u00e8s simple, il suffit de taper, m\u00eame sans passer en mode privili\u00e8ge :<\/p>\n\n\n\n

\n

show version<\/p>\n<\/blockquote>\n\n\n\n

\"\"<\/figure>\n\n\n\n
\"\"
Configuration Register 0x2142<\/figcaption><\/figure>\n\n\n\n
\n

Configuration register is 0x2142<\/p>\n<\/blockquote>\n\n\n\n

Ce mode permet de passer outre la configuration totale du routeur qui est copi\u00e9 dans la NVRAM au d\u00e9marrage (startup-config)<\/p>\n\n\n\n

C’est un mode utile pour passer outre le mot de passe oubli\u00e9 par exemple.<\/p>\n\n\n\n

<\/p>\n\n\n\n

\"\"
source : https:\/\/www.cisco.com\/c\/en\/us\/support\/docs\/routers\/10000-series-routers\/50421-config-register-use.html#anc6<\/figcaption><\/figure>\n\n\n\n

Donc nous sommes dans un mode qui ne permet pas de sauvegarder la configuration.
Pour la changer, c’est tr\u00e8s simple, il suffit d’aller en configure terminal pour saisir confreg avec la valeur par d\u00e9faut 0x2102 :<\/p>\n\n\n\n

\"\"
source : https:\/\/www.cisco.com\/c\/en\/us\/support\/docs\/routers\/10000-series-routers\/50421-config-register-use.html#anc6<\/figcaption><\/figure>\n\n\n\n
\n

Router # configure terminal<\/p>\n\n\n\n

Router(config) # confreg 0x2102<\/p>\n\n\n\n

Router(config) # end<\/p>\n\n\n\n

Router # reload<\/p>\n<\/blockquote>\n\n\n\n

\"\"<\/figure>\n","protected":false},"excerpt":{"rendered":"

Ce sympt\u00f4me peut vouloir dire deux choses:Le premier, le plus grave, probl\u00e8me de carte flash qui est en train de mourirLe deuxi\u00e8me, vous d\u00e9marrez dans un syst\u00e8me Configuration Register pour bypasser certains param\u00e8tres Comment...<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7,1],"tags":[],"_links":{"self":[{"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/posts\/158"}],"collection":[{"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/comments?post=158"}],"version-history":[{"count":2,"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/posts\/158\/revisions"}],"predecessor-version":[{"id":167,"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/posts\/158\/revisions\/167"}],"wp:attachment":[{"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/media?parent=158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/categories?post=158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/it.billybaheux.fr\/index.php\/wp-json\/wp\/v2\/tags?post=158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}