6to4 problem

[Laitinen Ismo <laitinei@cs.tut.fi>]

Hi all!

I have used ipv6 thru 6to4 tunnel occasionally few times a month.
However, now I noticed that my tunnel doesn't work anymore. I have used
following commands to set it up on boot:

ip tunnel add tun6to4 mode sit remote any local 193.166.92.78
ip link set dev tun6to4 up
ip -6 addr add 2002:c1a6:5c4e:1::1/64 dev tun6to4
ip -6 route add 2000::/3 via ::192.88.99.1 dev tun6to4 metric 1

Now after last command I get error message:

RTNETLINK answers: No route to host

Are my commands right? is my prefix correct?

Is this related to kernel configuration? When it
was working I used 2.4.17 or 2.4.19pre8. Now I'm using 2.4.19.

Here are my network options in kernel:

#
# Networking options
#
CONFIG_PACKET=y
CONFIG_PACKET_MMAP=y
CONFIG_NETLINK_DEV=y
CONFIG_NETFILTER=y
# CONFIG_NETFILTER_DEBUG is not set
CONFIG_FILTER=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
# CONFIG_IP_ADVANCED_ROUTER is not set
# CONFIG_IP_PNP is not set
# CONFIG_NET_IPIP is not set
# CONFIG_NET_IPGRE is not set
# CONFIG_IP_MROUTE is not set
# CONFIG_ARPD is not set
# CONFIG_INET_ECN is not set
CONFIG_SYN_COOKIES=y

CONFIG_IPV6=y


Thank you :)

~

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*         Ismo Laitinen          | "Thinking computer...        *
*Tampere University of Technology|      ...you mean like        *
*       laitinei@cs.tut.fi       |           a swimming ship"   *
*  gromit.ton.tut.fi/~laitinei/  |                              *
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