[LARTC] ip-cref and route nat.

[Peter Volkov Alexandrovich]

Hello.

The problem I have is route nat.

Short question: Must "route nat", mentioned in ip-cref documentation comming 
with iproute2 package, work with 2.6.9 kernel?

Long question and description of the problem:
There is an appendix C in ip-cref by Alexey Kuznetsov called "Route NAT 
Status". I've followed this configuration with 2.4.2x kernel and everything 
works. But now I'm forced to move to 2.6.9 kernel due to new SATA controller 
in my server. And problem is that it is not working. When I issue:

# ip route nat <inet_ip_address> via <local_ip_address>

I the answer is: RTNETLINK answers: invalid argument

So seems like some option is not enabled in my kernel. Well actualy I have all 
options and suboptions enabled in my kernel configuration under "TCP/IP 
networking" -> "IP: advanced router".

I've tried 2.6.8.1 kernel. And found out that there exist option "IP: fast 
network address translation" under "IP: advanced router" that is absent in 
2.6.9. When I enable this option the kernel seems to accept my command. My 
router starts to answer arp requsets for <inet_ip_addres>, as it should. But 
no route DNAT seems to occur. If I add some LOG rule to FORWARD iptables chain 
I can see packets to <inet_ip_address> being forwarded but not DNATed as it 
should.

Who supports this route nat code in the kernel? Are they going to support this 
cool feature or it's deprecated and I should look for other sollution? How 
can this be done???

If this is the wrong place to ask question about ip utility or anybody knows 
the right place for this question, please tell me.

I've tried to google and I've even tried to find an answer in sources, but 
with no success also.

Thank you very much in advance,
______________
Peter.

P.S. Sorry for reposting. But for two weeks no one answered. Another reason 
for reposting during my previous post mail list was broken...