Re: Output from apt-get update.

[Dan Ritter <dsr@randomstring.org>]

peter@easthope.ca wrote: 
> 
> The mainboard interface appears as eth0.
> "ip link show" reports eth0 is up.
> "ip addr show" reports an IPv6 address for eth0.  No IPv4 address.
> 
> ping to a neighbour reports 
>   connect: network is unreachable
>   
> Is IPv6 the default now?  Shorewall configuration needs updating?
> 

On a default Debian install, both IPv4 and IPv6 addresses will
be configured if detected: a DHCP request will be sent to obtain
an IPv4 address, and SLAAC will be used to get an IPv6 address.

It's normal for ip addr show eth0 to give you something like:

2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
pfifo_fast state UP group default qlen 1000
    link/ether fc:ab:14:a9:92:db brd ff:ff:ff:ff:ff:ff
    inet 10.2.0.2/16 brd 10.2.255.255 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::feaa:14ff:fea9:92db/64 scope link 
       valid_lft forever preferred_lft forever

which shows both IPv4 and IPv6 addresses assigned to eth0.

-dsr-