Public bug reported:

Binary package hint: choose-mirror

I upgraded from 8.04.1 to 8.10 I have an old stupid Belkin firewall
router

This was from /var/log/daemon.log using 8.04.1

Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>  DHCP daemon state is now 4 
(reboot) for interface eth0
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 4 
of 5 (IP Configure Get) scheduled...
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 4 
of 5 (IP Configure Get) started...
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>  Retrieved the following IP4 
configuration from the DHCP daemon:
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>    address 192.168.2.11
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>    netmask 255.255.255.0
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>    broadcast 255.255.255.255
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>    gateway 192.168.2.1
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>    nameserver 192.168.2.1
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>    domain name 'ph.cox.net'
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 5 
of 5 (IP Configure Commit) scheduled...
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 4 
of 5 (IP Configure Get) complete.
Jan 21 10:31:27 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 5 
of 5 (IP Configure Commit) started...

This was from /var/log/daemon.log after upgrading to 8.10

Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>  DHCP: device eth0 state 
changed preinit -> bound
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 4 
of 5 (IP Configure Get) scheduled...
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 4 
of 5 (IP Configure Get) started...
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>    address 192.168.2.11
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>    prefix 24 (255.255.255.0)
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>    gateway 192.168.2.1
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>    nameserver '192.168.2.1'
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>    domain name 'ph.cox.net'
Jan 22 09:55:26 JANES-LINUX dhclient: bound to 192.168.2.11 -- renewal in 
914840321 seconds.
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 5 
of 5 (IP Configure Commit) scheduled...
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 4 
of 5 (IP Configure Get) complete.
Jan 22 09:55:26 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 5 
of 5 (IP Configure Commit) started...
Jan 22 09:55:26 JANES-LINUX avahi-daemon[4771]: Joining mDNS multicast group on 
interface eth0.IPv4 with address 192.168.2.11.
Jan 22 09:55:26 JANES-LINUX avahi-daemon[4771]: New relevant interface 
eth0.IPv4 for mDNS.
Jan 22 09:55:26 JANES-LINUX avahi-daemon[4771]: Registering new address record 
for 192.168.2.11 on eth0.IPv4.
Jan 22 09:55:27 JANES-LINUX NetworkManager: <info>  (eth0): device state 
change: 7 -> 8
Jan 22 09:55:27 JANES-LINUX NetworkManager: <WARN>  add_ip4_route_to_gateway(): 
Failed to add IPv4 default route on 'eth0': (-19) Sucess
Jan 22 09:55:27 JANES-LINUX NetworkManager: <info>  Policy set 'Auto eth0' 
(eth0) as default for routing and DNS.
Jan 22 09:55:27 JANES-LINUX NetworkManager: <info>  Activation (eth0) 
successful, device activated.
Jan 22 09:55:27 JANES-LINUX NetworkManager: <info>  Activation (eth0) Stage 5 
of 5 (IP Configure Commit) complete.

I noticed the network info displayed by NetworkManager was very
different.  The thing I really noticed was the quotes around the
nameserver address in 8.10  and not 8.04.1

I was able to fix the problem by adding this to /etc/dhcp3/dhclient.conf

# Added by Jerry

#supersede netmask 255.255.255.0
#supersede broadcast 255.255.255.255
supersede nameserver 192.168.2.1

# end Added by Jerry

After trial and error and numerous reboots I found the only thing needed
was the nameserver option.  I do not know if the problem is with
dhclient or NetworkManager.  I read through several problems in the
forum with 8.10 networking that might be the same as this.

** Affects: choose-mirror (Ubuntu)
     Importance: Undecided
         Status: New

-- 
Wired network does not work after 8.10 upgrade
https://bugs.launchpad.net/bugs/320268
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