As per information given in link
http://www.isc.org/community/blog/201111/routing-configuration-over-dhcpv6
I tried to enable route prefix option in ISC-DHCP server , the configuration of server is :
vim /etc/dhcp/dhcpv6.conf
===================================================
## NEXT_HOP option with RTPREFIX option included
option dhcp6.next-hop-rt-prefix code 242 = { ip6-address, unsigNed integer 16,un
signed integer 16, unsigned integer 32, unsigned integer 8, unsigned integer 8,
ip6-address };
#
# # This statement configures actual values to be sent
# # RTPREFIX option code = 243, RTPREFIX length = 22
# # lifetime = 9000 seconds
# # route 2001:db8:2::/64
# # metric 1
option dhcp6.next-hop-rt-prefix 2001:db8:270::100:100 243 64 9000 0 1 ::;
=================================================
the configuration of dhcp client :
vim /etc/dhcp/dhcpv6.conf
=========================================
script "/sbin/dhclient-script";
option dhcp6.next-hop-rtprefix code 242 = { ip6-address,unsigned integer 16, uns
igned integer 16,unsigned integer 32,unsigned integer 8, unsigned integer 8, ip6
-address };
# RTPREFIX option
interface "eth1" {
request dhcp6.next-hop-rtprefix,dhcp6.vendor-opts,dhcp6.name-servers;
}
=================================
I can see the prefix 242 in DHCP packets.
