Upgrade to 20.04.1 no internet

[Chris]

On Sat, 2020-10-03 at 11:07 +0100, Colin Law wrote:
> On Thu, 1 Oct 2020 at 22:04, Chris Pollock <
> chris.pollock1948 at gmail.com> wrote:
> > ...
> > I ran journalctl -f with the Ethernet cable disconnected then
> > plugged it in. The output is here pastebin.com/60ecK76v
> > I have a new Ethernet cable installed. Not sure what you mean "the
> > other end plugged into something useful"
> > 
> 
> Looking at the log it seems to have connected to the DHCP server ok
> and acquired an IP addres.  What does
> ip addr
> show?
A little after 11pm CDT last night suddenly the internet came back up
however I'm not sure if it's permanent or not. Here's the output of ip
addr and I added the output of route:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN
group default qlen 1000
    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: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel
state UP group default qlen 1000
    link/ether 00:25:64:c7:b1:e4 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.220/24 brd 192.168.0.255 scope global dynamic
noprefixroute eth0
       valid_lft 55224sec preferred_lft 55224sec
    inet6 fd00::7972:4c96:65e0:5e33/64 scope global temporary dynamic 
       valid_lft 573627sec preferred_lft 54966sec
    inet6 fd00::bb65:4a5:a5fa:2a4b/64 scope global dynamic mngtmpaddr
noprefixroute 
       valid_lft 2591936sec preferred_lft 604736sec
    inet6 fe80::f0a1:dfc9:9682:7696/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever

Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use
Iface
default         _gateway        0.0.0.0         UG    100    0        0
eth0
link-local      0.0.0.0         255.255.0.0     U     1000   0        0 
eth0
192.168.0.0     0.0.0.0         255.255.255.0   U     100    0        0
eth0

> 
> I think the errors are to do with IPV6.  Have you been playing with
> IPV6?  How have you got V6 configured in the network manager settings
> for the connection.

Have never messed with V6
> 
> The reason it works off the live DVD is that it is a settings issue
> of
> some sort rather than a s/w or hardware problem.
> 
> Colin
> 

-- 
Chris
31.11972; -97.90167 (Elev. 1092 ft)
08:26:31 up 8:42, 1 user, load average: 0.71, 0.61, 0.40
Description:	Ubuntu 20.04.1 LTS, kernel 5.4.0-48-generic