gns3 ubuntu docker cant get ip address

mkazam001 · ‎11-26-2018

Just in case anyone can offer some help.

I'm unable to get an IP address for the Ubuntu container in GNS3, has anyone found the same problem & managed to fix it.

I'm using version 1.5.1 so have to use the cloud to get to the internet.

I've configured both a router - to test dhcp & ping 8.8.8.8 which works fine - the ubuntu docker does not.

I've edited the ubuntu network config - removed # from the 2 lines so its setup for dhcp - saved & reloaded the container but it still wont get IP via dhcp.

This is what happens in Ubuntu:

Sending discover...

Sending select for 192.168.137.222...

udhcpc failed to get a DHCP lease

No lease, forking to background

root@Ubuntu Docker Guest-1:~#

root@Ubuntu Docker Guest-1:~# ifconfig

eth0 Link encap:Ethernet HWaddr 2e:6f:d3:30:76:5e

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:23 errors:0 dropped:0 overruns:0 frame:0

TX packets:15 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:2677 (2.6 KB) TX bytes:4374 (4.3 KB)

Any suggestions would be greatly appreciated.

Regards, mk

pbagga · ‎03-16-2019

Hello,

This is not the right channel for this question. Software Defined Access (SDA) is a campus fabric managed by Cisco DNAC for Enterprise Networking.

For the ubuntu container, please make sure your docker bridge is connected to the VM network. Please refer to documentation here: https://docs.docker.com/network/bridge/

Thanks,

Prabhjit Singh Bagga