No Internet inside Docker containers

[Mustafa Muhammad]

I've installed Docker, when I run:
sudo docker run -it debian
I get into the container, but I can't reach anything, ping 8.8.8.8 returns "Destination Host Unreachable"

Using 'ip ad' I get:
mustafa@mustafa-All-Series:~$ ip ad
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default
    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: eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether ac:22:0b:c6:6f:d7 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::ae22:bff:fec6:6fd7/64 scope link
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
    link/ether 00:00:00:00:00:00 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::d0fb:3aff:fe0c:36b7/64 scope link
       valid_lft forever preferred_lft forever
5: ppp0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1480 qdisc pfifo_fast state UNKNOWN group default qlen 3
    link/ppp
    inet 172.31.1.32 peer 172.31.0.1/32 scope global ppp0
       valid_lft forever preferred_lft forever

The NO-CARRIER thing is strange for docker bridge.

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: docker (not installed)
ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3
Uname: Linux 4.2.0-16-generic x86_64
ApportVersion: 2.19.1-0ubuntu2
Architecture: amd64
CurrentDesktop: KDE
Date: Thu Oct 15 09:48:30 2015
InstallationDate: Installed on 2015-10-13 (1 days ago)
InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150924)
SourcePackage: docker
UpgradeStatus: No upgrade log present (probably fresh install)

[Tianon Gravi (tianon)]

This was filed against the wrong Docker package (talks about containers); didn't verify whether it's valid but wanted to get it pointed at the right package anyhow.