[Lab 3] IPv6 Network Unreachable

[Lab 3] IPv6 Network Unreachable

by Ganyuan Cao -
Number of replies: 7

Hello,

I am doing part 3 and have the error: OSError: [Errno 101] Network is unreachable

The error is only with IPv6 and with IPv4 the socket works well.

Is there any idea on that?

Thank you!

Best,

Gan

In reply to Ganyuan Cao

[Lab 3] IPv6 Network Unreachable

by Gaiëtan Renault -
Hello Gan,

For Lab 3 you must be at EPFL and be connected to EPFL Wifi (to reach tcp ip server via ipv6 link local). If you are connected to EPFL VPN you'll not be able to reach tcpip server via IPv6.

Best,
Gaiëtan.
In reply to Gaiëtan Renault

Re: [Lab 3] IPv6 Network Unreachable

by Eva Luvison -
Hello,

I have the same problem, but I am actually connected to EPFL Wifi. Would you have an idea ?

Thank you !

Best,
Eva
In reply to Eva Luvison

Re: [Lab 3] IPv6 Network Unreachable

by Gaiëtan Renault -
Hello Eva,

First, please verify that you are not connected to any VPN (while being connected to EPFL Wifi).
I would also verify that MininetVM network adapter parameter is set to "NAT network" (and not "NAT" for example) connection.

Hope this helps and please keep me updated on this if not,
Best,
Gaiëtan.
In reply to Gaiëtan Renault

Re: [Lab 3] IPv6 Network Unreachable

by Eva Luvison -
To set the VM network to 'NAT network', I only needed to create a new NATNetwork in VirtualBox settings and then choose this new Network in the Mininet settings right ?
In reply to Eva Luvison

Re: [Lab 3] IPv6 Network Unreachable

by Gaiëtan Renault -
Yes exactly, as written on lab3_moodle-version_v3.pdf. You can also remove all other network adapters.
You should also verify that you checked "supports DHCP",  "supports IPV6" and "advertise default route" options.