Can not load IPV6-MIB

Dear All,
 
I have installed net-snmp in order to access IPv6 routing table
information such as ipv6IfTable and ipv6RouteDest.  To enable ipv6 I
configured net-snmp using the "--enable-ipv6" option.  I also configured
the snmpd.conf configuration file using directives com2sec6 and
rocommunity6 and added "udp6:161, udp:161" as an option for running the
snmp agent.
 
When I do snmpwalk I see a lot of IPv4 information, but I only see 10-15
entries reflecting the IPV6-MIB.
 
Also, when I do snmpget to retrieve information such as  ipv6RouteDest I
get an error that the object does not exist.
 
I am currently using Fedora Core 3 with the kernel 2.6.12.3.  
How do I get net-SNMP to assign values to ipv6IfTable, ipv6RouteDest
etc.?
Am I missing something?
 
Thank you,
George