eth0: no IPv6 router present

[lists at tomgeorge.info (Thomas H. George)]

I built a Debian Live CD with lh_config -a i386 -d lenny --packages 'gdm 
openoffice . . .' plus copies of several of my configuration files 
including /etc/network/interfaces.  All the packages work fine but the 
system can't connect to our lan which uses static ip addresses.  During 
bootup attempts are made to establish DHCP connections.  When the bootup 
is complete I replace the interfaces file with a copy of the parent 
machine's interfaces file and run /etc/init.d/networking restart.  The 
program responds "Reconfiguring network interfaces . . .done"  but the 
lan in unreachable.  Checking tail /var/log/syslog I find an entry 
"eth0: no IPv6 router present".  Since the lan is connected to eth0 and 
the parent computer has no problem connecting I don't understand what's 
wrong or missing.

Tom