[Openswan Users] How to build KLIPS support in 2.6 serial kernels ?

[Chen Lintao]

This may be a simple question for you , I am a newbie for
kernel2.6+openswan2 .
And I am familiar with ipsec0 .. in  Kernel 2.4 + Openswan 1.10
Now I want to update to  Kernel 2.6+openswan2 and still want to have
"ipsecX" to monitor or shape VPN traffic. 

Kernel :  linux-2.6.15.1
openswan2: openswan-2.4.4
patch: openswan-2.4.4.kernel-2.6-klips.patch
       openswan-2.4.4.kernel-2.6-natt.patch

According to the manual:
cd linux-2.6.15.1
patch -p1 < ../openswan-2.4.4.kernel-2.6-klips.patch
patch -p1 < ../openswan-2.4.4.kernel-2.6-natt.patch

then 
make menuconfig

I can't see any KLIPS (or openswan) info at "Networking " section.
Only 26sec ...

Did I do something wrong ?  Pls help ..