Docker create two bridges that corrupts my internet access
I'm facing a pretty strange issue: Here is my config: docker 17-ce ubuntu 16.04. I work from two differents places with differents internet providers. On the first place, everything works just fine, i can run docker out of the box and access internet without any problems. But on the second place i cannot access the internet while docker is running, more precisly while the two virtual briges created by docker are up. In this place, internet connection operate very strangly, i can ping google dns at 188.8.131.52, but nearly all dns request failed and most of the time after a few seconds the internet connection is totally down. ( The only difference between the first and the second place is the internet provider ). At first i tought i could fix that by changing the default network bridge ip, but this does not solve the problem at all. The point is that the --bip option of the docker daemon change the IP of the default docker bridge docker0, but docker also create an other bridge called br-1a0208f108d9 which does not reflect the settings passed to the --bip option. I guess that this second bridge is causing trouble to my network because it overlap my wifi adapter configuration. I'm having a hard time trying to diagnosticate this. My questions are: How can i be sure that my asumptions are right and that this second bridget is in conflict with my wifi adapter What is this second bridge ? It's easy to find documentation about the docker0 bridge, but i cannot find anything related to this second bridge br-1a0208f108d9 How the exact same setup can work on one place and not an other one. With this trouble i feel like i'm pretty close to level up my docker knowledges but before that i have to increase my network administration knowledges. Hope you can help.
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