Hop Limit Setting for dial up interface

Hi,
I am connecting Vista PC though Dial up interface to the IPv6 intranet. I am
successful in getting IPv6 global preferred address. I am configuring the DNS
server address statically for that interface using netsh interface ipv6
dnsserver command. The problem arises when I try to ping IPv6 enabled
websites. When I directly give the IPV6 address, I am able to see the ping
reply. When I ping using Name, it could not find the name. The reason what I
have found is DNS server is 4 hops behind the host. But the hoplimit in the
DNS query IPv6 packet is 2. So I am gettting Time exceeded (in-transit) reply
from the router.
My question is how to set the hop limit for that interface. (I tried with
netsh interface ipv6 set global defaultcurhoplimit 128, but still the packets
is going with hop limit 2).
Any one can pls help me?