{"id":99,"date":"2019-11-16T11:08:04","date_gmt":"2019-11-16T10:08:04","guid":{"rendered":"https:\/\/blog.simon-frey.eu\/?p=99"},"modified":"2024-01-19T12:52:36","modified_gmt":"2024-01-19T11:52:36","slug":"wifionice-not-working-on-linux","status":"publish","type":"post","link":"https:\/\/simon-frey.com\/blog\/wifionice-not-working-on-linux\/","title":{"rendered":"WIFIonICE not working on Linux"},"content":{"rendered":"\n

If you are reading this post and are currently suffering from Deutsche Bahn WIFIonICE not working on your Linux laptop ask yourself “Is docker running on my laptop?”<\/em>. If not or you don’t know what docker is, I am sorry that this blog post will not help you.<\/p>\n\n\n\n

So you have docker running on your machine.<\/p>\n\n\n\n

The problem with WIFIonICE on Linux and docker is, that they use the same subnets for giving you IPs. <\/p>\n\n\n\n

A subnetwork or subnet is a logical subdivision of an IP network The practice of dividing a network into two or more networks is called subnetting.<\/p>Wikipedia<\/cite><\/blockquote>\n\n\n\n\n\n

Solutions<\/h2>\n\n\n\n

As you can not change the router of the train you need to fix\/circumvent the issue on your laptop.:<\/p>\n\n\n\n

Temporary: Disable docker<\/strong><\/h3>\n\n\n\n

If you do not have work with docker during your train ride, the simplest option is to disable docker and the problem will be gone. 
Nicolas Kuttler build a neat little script to do that for your. Get it on his website: kuttler.eu\/code\/ice-wlan-linux-docker\/<\/a>
Just execute the script with sh [your saved scripname].sh on<\/code> to stop docker (weird that he uses the keyword on<\/code> for actually shutting docker off :D)
After you trainride you can reenable docker with sh [your saved scripname].sh off<\/code><\/p>\n\n\n\n

Permanently: Change docker0 subnet<\/strong><\/h3>\n\n\n\n

Searching trough the net I found several solutions on how to do that, involving iptables<\/code> and stuff. <\/p>\n\n\n\n

But these solutions are all not permanent and take quite some steps. Easiest solution I found. Add a startup parameter to \/etc\/docker\/daemon.json<\/code>:<\/p>\n\n\n\n

{\n  \"bip\": \"172.17.77.1\/24\"\n}<\/code><\/pre>\n\n\n\n
Which will tell the docker daemon on startup to use that certain subnet.
Just restart your machine and the WIFIonICE should be working from now on.<\/p>\n","protected":false},"excerpt":{"rendered":"
Fix problems with the Free WIFIonICE and the Docker Bridges<\/p>\n","protected":false},"author":1,"featured_media":102,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[21],"tags":[31,19,12,23],"class_list":["post-99","post","type-post","status-publish","format-standard","hentry","category-linux","tag-docker","tag-linux","tag-startup","tag-website"],"yoast_head":"\nWIFIonICE not working on Linux - Blog by Simon Frey<\/title>\n<meta name=\"description\" content=\"The docker subnet interferes with the Deutsche Bahn Wifi and it makes WIFIonICE not working on Linux. 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