Il est possible que la connexion au VPN (vpn20-1, vpn2-2 ou vpn20-3) via la WIFI ne fonctionne pas correctement.<\/p>\n\n\n\n
Il se trouve que sur ces OS r\u00e9cents, il n’est plus possible de faire le r\u00e9glage de la MTU via les param\u00e8tres graphique de la connexion WIFI.<\/p>\n\n\n\n
Un Exemple :<\/p>\n\n\n\n ce qu’il faut voir ici est la ligne :<\/p>\n\n\n\n Qui indique un MTU \u00e0 1500 octets.<\/p>\n\n\n\n Ainsi la connexion VPN bas\u00e9 sur le WIFI n’est pas fonctionnelle.<\/p>\n\n\n\n Il faut r\u00e9-appliquer \u00ab\u00a0\u00e0 la main\u00a0\u00bb la proc\u00e9dure suivante (merci \u00e0 S\u00e9bastien Picard d’avior \u00e9t\u00e9 vigilent sur ce point) dans le fichier Une fois cela fait vous pouvez arr\u00eater le VPN, relancer la connexion WIFI et relancer la connexion VPN.<\/p>\n","protected":false},"excerpt":{"rendered":" Il est possible que la connexion au VPN (vpn20-1, vpn2-2 ou vpn20-3) via la WIFI ne fonctionne pas correctement. Il se trouve que sur ces OS r\u00e9cents, il n’est plus possible de faire le r\u00e9glage de la MTU via les param\u00e8tres graphique de la connexion WIFI. Un ip address va vous informer sur l’\u00e9tat de […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,1],"tags":[174,173,16,38,172,31],"class_list":["post-364","post","type-post","status-publish","format-standard","hentry","category-informations-techniques","category-informations-utilisateurs","tag-20-04","tag-21-04","tag-debian","tag-mtu","tag-ubuntu","tag-vpn"],"_links":{"self":[{"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=\/wp\/v2\/posts\/364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=364"}],"version-history":[{"count":1,"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=\/wp\/v2\/posts\/364\/revisions"}],"predecessor-version":[{"id":365,"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=\/wp\/v2\/posts\/364\/revisions\/365"}],"wp:attachment":[{"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vpn.univ-fcomte.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}ip address<\/code> va vous informer sur l’\u00e9tat de votre conenxion.<\/p>\n\n\n\ndsin@dsin-NL40-50GU:~$ ip address
1: lo: mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link\/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1\/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1\/128 scope host
valid_lft forever preferred_lft forever
2: wlp0s12f0: mtu 1500 qdisc noqueue state UP group default qlen 1000
link\/ether 24:41:8c:68:37:56 brd ff:ff:ff:ff:ff:ff
inet 172.21.205.141\/20 brd 172.21.207.255 scope global dynamic noprefixroute wlp0s12f0
valid_lft 4992sec preferred_lft 4992sec
inet 10.248.3.19\/32 scope global wlp0s12f0
valid_lft forever preferred_lft forever
inet6 fe80::3c5:7d40:52b7:1452\/64 scope link noprefixroute
valid_lft forever preferred_lft forever<\/code><\/p>\n\n\n\n2: wlp0s12f0: mtu 1500 qdisc noqueue state UP group default qlen 1000<\/code><\/p>\n\n\n\n\/etc\/NetworkManager\/dispatcher.d\/01-ifupdown<\/code> :<\/p>\n\n\n\nif [ \"$2\" = \"vpn-up\" ] || [ \"$2\" = \"vpn-down\" ]; then<\/code>ADDRESS_FAMILIES=\"\"<\/code>ip link set dev \"$1\" mtu 1300<\/code>fi<\/code><\/p>\n\n\n\n